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07-M-LAG典型配置举例
本章节下载： 07-M-LAG典型配置举例 (554.16 KB)
本文档介绍M-LAG特性的配置举例。
M-LAG是一种跨设备链路聚合技术，将两台物理设备在聚合层面虚拟成一台设备来实现跨设备链路聚合，从而提供设备级冗余保护和流量负载分担。
本文档中的配置均是在实验室环境下进行的配置和验证，配置前设备的所有参数均采用出厂时的缺省配置。如果您已经对设备进行了配置，为了保证配置效果，请确认现有配置和以下举例中的配置不冲突。
本文档假设您已了解M-LAG特性。
如图1所示，Device A和Device B为接入设备，Device C和Device D为网关设备。现要求使用M-LAG技术实现接入设备的冗余保护和流量负载分担功能。具体要求如下：
· 在Device A和Device B上部署M-LAG，实现接入设备的冗余备份和流量负载分担。
· 分别在Device A和Device B上配置保留接口，用于M-LAG主备设备间Keepalive报文的传输，检测Device A和Device B是否故障。
· 在Device C和Device D上部署VRRP，当网关设备工作正常时，区域A用户通过网关设备Device C进行数据转发；区域B用户通过网关设备Device D进行数据转发，实现流量的负载分担。
· 当Device C或者Device C的上行接口发生故障后，Device D能够迅速承担区域A内主机流量的转发任务；Device C故障恢复后，继续承担VRRP备份组1的网关功能。
· 当Device D或者Device D的上行接口发生故障后，Device C能够迅速承担区域B内主机流量的转发任务；Device D故障恢复后，继续承担VRRP备份组2的网关功能。
· 在Device C、Device D和Device E上搭建OSPF网络，Device C和Device D通过OSPF发布区域A和区域B内的主机所在网段的路由，以实现区域A和区域B内的主机与外部网络的三层互通。
图1 基于接入层的M-LAG配置组网图
|
设备 |
接口 |
IP地址 |
设备 |
接口 |
IP地址 |
|
Device A |
HGE1/0/5 |
1.1.1.1/24 |
Device B |
HGE1/0/5 |
1.1.1.2/24 |
|
Device C |
Vlan-int100 |
100.1.1.1/24 |
Device D |
Vlan-int200 |
200.1.1.1/24 |
|
|
Vlan-int10 |
10.1.1.1/24 |
|
Vlan-int10 |
10.1.1.2/24 |
|
|
Vlan-int20 |
20.1.1.1/24 |
|
Vlan-int20 |
20.1.1.2/24 |
|
|
Virtual IP 1 |
10.1.1.100/24 |
|
Virtual IP 1 |
10.1.1.100/24 |
|
|
Virtual IP 2 |
20.1.1.100/24 |
|
Virtual IP 2 |
20.1.1.100/24 |
|
Device E |
Vlan-int100 |
100.1.1.2/24 |
|
|
|
|
|
Vlan-int200 |
200.1.1.2/24 |
|
|
|
|
|
Vlan-int30 |
30.1.1.1/24 |
|
|
|
· 分别在Device A和Device B上配置保留接口的IP地址，且保证能够三层互通，用于M-LAG主备设备间Keepalive报文的传输。
· 为了让Device C和Device D分别成为VRRP备份组1和VRRP备份组2中的Master，需要在VRRP备份组1中为Device C配置较高的优先级，在VRRP备份组2中为Device D配置较高的优先级。
本举例是在R2825版本上进行配置和验证的。
配置M-LAG时，需要注意：
· 要求所有M-LAG设备配置相同的系统MAC地址和系统优先级，配置不同的系统编号。
· 一台M-LAG设备上只能配置一个peer-link。
· 建议用户将Keepalive接口配置为保留接口，避免在M-LAG建立过程中被置为MAD DOWN状态，造成错误检测。
配置VRRP时，需要注意：
· VRRP备份组的虚拟IP地址不能为全零地址（0.0.0.0）、广播地址（255.255.255.255）、环回地址、非A/B/C类地址和其它非法IP地址（如0.0.0.1）。
· 建议将备份组的虚拟IP地址和备份组中设备下行接口的IP地址配置为同一网段，否则可能导致局域网内的主机无法访问外部网络。
# 配置M-LAG系统参数。
<DeviceA> system-view
[DeviceA] m-lag system-mac 1-1-1
Changing the system MAC might flap the intra-portal link and cause M-LAG system setup failure. Continue? [Y/N]:y
[DeviceA] m-lag system-number 1
Changing the system number might flap the intra-portal link and cause M-LAG system setup failure. Continue? [Y/N]:y
[DeviceA] m-lag system-priority 123
Changing the system priority might flap the intra-portal link and cause M-LAG system setup failure. Continue? [Y/N]:y
# 配置Keepalive报文的目的IP地址和源IP地址。
[DeviceA] m-lag keepalive ip destination 1.1.1.2 source 1.1.1.1
# 配置端口HundredGigE1/0/5工作在三层模式，并配置IP地址为Keepalive报文的源IP地址。
[DeviceA] interface hundredgige 1/0/5
[DeviceA-HundredGigE1/0/5] port link-mode route
[DeviceA-HundredGigE1/0/5] ip address 1.1.1.1 24
[DeviceA-HundredGigE1/0/5] quit
# 配置Keepalive链路接口为保留接口。
[DeviceA] m-lag mad exclude interface hundredgige 1/0/5
# 创建VLAN 10和VLAN 20。
[DeviceA] vlan 10
[DeviceA-vlan10] quit
[DeviceA] vlan 20
[DeviceA-vlan20] quit
# 创建动态二层聚合接口1。
[DeviceA] interface bridge-aggregation 1
[DeviceA-Bridge-Aggregation1] link-aggregation mode dynamic
[DeviceA-Bridge-Aggregation1] quit
# 分别将端口HundredGigE1/0/6和HundredGigE1/0/7加入到聚合组1中。
[DeviceA] interface hundredgige 1/0/6
[DeviceA-HundredGigE1/0/6] port link-aggregation group 1
[DeviceA-HundredGigE1/0/6] quit
[DeviceA] interface hundredgige 1/0/7
[DeviceA-HundredGigE1/0/7] port link-aggregation group 1
[DeviceA-HundredGigE1/0/7] quit
# 配置二层聚合接口1为Trunk端口，并允许VLAN 10和VLAN 20的报文通过。
[DeviceA] interface bridge-aggregation 1
[DeviceA-Bridge-Aggregation1] port link-type trunk
Configuring HundredGigE1/0/6 done.
Configuring HundredGigE1/0/7 done.
[DeviceA-Bridge-Aggregation1] port trunk permit vlan 10 20
Configuring HundredGigE1/0/6 done.
Configuring HundredGigE1/0/7 done.
[DeviceA-Bridge-Aggregation1] quit
# 创建动态二层聚合接口3。
[DeviceA] interface bridge-aggregation 3
[DeviceA-Bridge-Aggregation3] link-aggregation mode dynamic
[DeviceA-Bridge-Aggregation3] quit
# 分别将端口HundredGigE1/0/3和HundredGigE1/0/4加入到聚合组3中。
[DeviceA] interface hundredgige 1/0/3
[DeviceA-HundredGigE1/0/3] port link-aggregation group 3
[DeviceA-HundredGigE1/0/3] quit
[DeviceA] interface hundredgige 1/0/4
[DeviceA-HundredGigE1/0/4] port link-aggregation group 3
[DeviceA-HundredGigE1/0/4] quit
# 配置二层聚合接口3为peer-link。
[DeviceA] interface bridge-aggregation 3
[DeviceA-Bridge-Aggregation3] port m-lag peer-link 1
[DeviceA-Bridge-Aggregation3] quit
# 创建动态二层聚合接口4，并配置该接口为M-LAG接口4。
[DeviceA] interface bridge-aggregation 4
[DeviceA-Bridge-Aggregation4] link-aggregation mode dynamic
[DeviceA-Bridge-Aggregation4] port m-lag group 4
[DeviceA-Bridge-Aggregation4] quit
# 分别将端口HundredGigE1/0/1和HundredGigE1/0/2加入到聚合组4中。
[DeviceA] interface hundredgige 1/0/1
[DeviceA-HundredGigE1/0/1] port link-aggregation group 4
[DeviceA-HundredGigE1/0/1] quit
[DeviceA] interface hundredgige 1/0/2
[DeviceA-HundredGigE1/0/2] port link-aggregation group 4
[DeviceA-HundredGigE1/0/2] quit
# 配置二层聚合接口4为Trunk端口，并允许VLAN 10和VLAN 20的报文通过。
[DeviceA] interface bridge-aggregation 4
[DeviceA-Bridge-Aggregation4] port link-type trunk
Configuring HundredGigE1/0/1 done.
Configuring HundredGigE1/0/2 done.
[DeviceA-Bridge-Aggregation4] port trunk permit vlan 10 20
Configuring HundredGigE1/0/1 done.
Configuring HundredGigE1/0/2 done.
[DeviceA-Bridge-Aggregation4] quit
# 配置M-LAG系统参数。
<DeviceB> system-view
[DeviceB] m-lag system-mac 1-1-1
Changing the system MAC might flap the intra-portal link and cause M-LAG system setup failure. Continue? [Y/N]:y
[DeviceB] m-lag system-number 2
Changing the system number might flap the intra-portal link and cause M-LAG system setup failure. Continue? [Y/N]:y
[DeviceB] m-lag system-priority 123
Changing the system priority might flap the intra-portal link and cause M-LAG system setup failure. Continue? [Y/N]:y
# 配置Keepalive报文的目的IP地址和源IP地址。
[DeviceB] m-lag keepalive ip destination 1.1.1.1 source 1.1.1.2
# 配置端口HundredGigE1/0/5工作在三层模式，并配置IP地址为Keepalive报文的源IP地址。
[DeviceB] interface hundredgige 1/0/5
[DeviceB-HundredGigE1/0/5] port link-mode route
[DeviceB-HundredGigE1/0/5] ip address 1.1.1.2 24
[DeviceB-HundredGigE1/0/5] quit
# 配置Keepalive链路接口为保留接口。
[DeviceB] m-lag mad exclude interface hundredgige 1/0/5
# 创建VLAN 10和VLAN 20。
[DeviceB] vlan 10
[DeviceB-vlan10] quit
[DeviceB] vlan 20
[DeviceB-vlan20] quit
# 创建动态二层聚合接口2。
[DeviceB] interface bridge-aggregation 2
[DeviceB-Bridge-Aggregation2] link-aggregation mode dynamic
[DeviceB-Bridge-Aggregation2] quit
# 分别将端口HundredGigE1/0/6和HundredGigE1/0/7加入到聚合组2中。
[DeviceB] interface hundredgige 1/0/6
[DeviceB-HundredGigE1/0/6] port link-aggregation group 2
[DeviceB-HundredGigE1/0/6] quit
[DeviceB] interface hundredgige 1/0/7
[DeviceB-HundredGigE1/0/7] port link-aggregation group 2
[DeviceB-HundredGigE1/0/7] quit
# 配置二层聚合接口2为Trunk端口，并允许VLAN 10和VLAN 20的报文通过。
[DeviceB] interface bridge-aggregation 2
[DeviceB-Bridge-Aggregation2] port link-type trunk
Configuring HundredGigE1/0/6 done.
Configuring HundredGigE1/0/7 done.
[DeviceB-Bridge-Aggregation2] port trunk permit vlan 10 20
Configuring HundredGigE1/0/6 done.
Configuring HundredGigE1/0/7 done.
[DeviceB-Bridge-Aggregation2] quit
# 创建动态二层聚合接口3。
[DeviceB] interface bridge-aggregation 3
[DeviceB-Bridge-Aggregation3] link-aggregation mode dynamic
[DeviceB-Bridge-Aggregation3] quit
# 分别将端口HundredGigE1/0/3和HundredGigE1/0/4加入到聚合组3中。
[DeviceB] interface hundredgige 1/0/3
[DeviceB-HundredGigE1/0/3] port link-aggregation group 3
[DeviceB-HundredGigE1/0/3] quit
[DeviceB] interface hundredgige 1/0/4
[DeviceB-HundredGigE1/0/4] port link-aggregation group 3
[DeviceB-HundredGigE1/0/4] quit
# 配置二层聚合接口3为peer-link。
[DeviceB] interface bridge-aggregation 3
[DeviceB-Bridge-Aggregation3] port m-lag peer-link 1
[DeviceB-Bridge-Aggregation3] quit
# 创建动态二层聚合接口4，并配置该接口为M-LAG接口4。
[DeviceB] interface bridge-aggregation 4
[DeviceB-Bridge-Aggregation4] link-aggregation mode dynamic
[DeviceB-Bridge-Aggregation4] port m-lag group 4
[DeviceB-Bridge-Aggregation4] quit
# 分别将端口HundredGigE1/0/1和HundredGigE1/0/2加入到聚合组4中。
[DeviceB] interface hundredgige 1/0/1
[DeviceB-HundredGigE1/0/1] port link-aggregation group 4
[DeviceB-HundredGigE1/0/1] quit
[DeviceB] interface hundredgige 1/0/2
[DeviceB-HundredGigE1/0/2] port link-aggregation group 4
[DeviceB-HundredGigE1/0/2] quit
# 配置二层聚合接口4为Trunk端口，并允许VLAN 10和VLAN 20的报文通过。
[DeviceB] interface bridge-aggregation 4
[DeviceB-Bridge-Aggregation4] port link-type trunk
Configuring HundredGigE1/0/1 done.
Configuring HundredGigE1/0/2 done.
[DeviceB-Bridge-Aggregation4] port trunk permit vlan 10 20
Configuring HundredGigE1/0/1 done.
Configuring HundredGigE1/0/2 done.
[DeviceB-Bridge-Aggregation4] quit
# 创建VLAN 10、20和100。
<DeviceC> system-view
[DeviceC] vlan 10
[DeviceC-vlan10] quit
[DeviceC] vlan 20
[DeviceC-vlan20] quit
[DeviceC] vlan 100
# 将HundredGigE1/0/3加入VLAN 100。
[DeviceC] vlan 100
[DeviceC-vlan100] port hundredgige 1/0/3
[DeviceC-vlan100] quit
# 创建二层聚合接口1，并配置该接口为动态聚合模式。
[DeviceC] interface bridge-aggregation 1
[DeviceC-Bridge-Aggregation1] link-aggregation mode dynamic
[DeviceC-Bridge-Aggregation1] quit
# 将端口HundredGigE1/0/1和HundredGigE1/0/2加入到聚合组1中。
[DeviceC] interface range hundredgige 1/0/1 to hundredgige 1/0/2
[DeviceC-if-range] port link-aggregation group 1
[DeviceC-if-range] quit
# 配置二层聚合接口1为Trunk端口，并允许VLAN 10和VLAN 20的报文通过。
[DeviceC] interface bridge-aggregation 1
[DeviceC-Bridge-Aggregation1] port link-type trunk
Configuring HundredGigE1/0/1 done.
Configuring HundredGigE1/0/2 done.
[DeviceC-Bridge-Aggregation1] port trunk permit vlan 10 20
Configuring HundredGigE1/0/1 done.
Configuring HundredGigE1/0/2 done.
[DeviceC-Bridge-Aggregation1] quit
# 创建上行接口Vlan-interface100，并配置其IP地址。
[DeviceC] interface vlan-interface 100
[DeviceC-Vlan-interface100] ip address 100.1.1.1 24
[DeviceC-Vlan-interface100] quit
# 创建接口Vlan-interface10和Vlan-interface20，并配置其IP地址。
[DeviceC] interface vlan-interface 10
[DeviceC-vlan-interface10] ip address 10.1.1.1 24
[DeviceC-vlan-interface10] quit
[DeviceC] interface vlan-interface 20
[DeviceC-vlan-interface20] ip address 20.1.1.1 24
[DeviceC-vlan-interface20] quit
# 为接口Vlan-interface10创建备份组1，并配置备份组1的虚拟IP地址为10.1.1.100。
[DeviceC] interface vlan-interface 10
[DeviceC-Vlan-interface10] vrrp vrid 1 virtual-ip 10.1.1.100
# 设置Device C在备份组1中的优先级为200，以保证Device C成为Master，从而和Device C在M-LAG中角色一致。
[DeviceC-Vlan-interface10] vrrp vrid 1 priority 200
[DeviceC-Vlan-interface10] quit
# 为接口Vlan-interface20创建备份组2，并配置备份组2的虚拟IP地址为20.1.1.100。
[DeviceC] interface vlan-interface 20
[DeviceC-Vlan-interface20] vrrp vrid 2 virtual-ip 20.1.1.100
[DeviceC-vlan-interface20] quit
# 设置Device C在备份组1中工作在抢占方式，配置抢占延迟时间为500厘秒。
[DeviceC] interface vlan-interface 10
[DeviceC-Vlan-interface10] vrrp vrid 1 preempt-mode delay 500
[DeviceC-Vlan-interface10] quit
# 创建和上行端口HundredGigE1/0/3关联的Track项1。
[DeviceC] track 1 interface hundredgige 1/0/3
# 配置监视Track项1，Track项的状态为Negative时，Device C在VRRP备份组1中的优先级降低的数值为150。
[DeviceC] interface vlan-interface 10
[DeviceC-Vlan-interface10] vrrp vrid 1 track 1 priority reduced 150
[DeviceC-Vlan-interface10] quit
# 配置OSPF。
[DeviceC] ospf
[DeviceC-ospf-1] area 0
[DeviceC-ospf-1-area-0.0.0.0] network 10.1.1.0 0.0.0.255
[DeviceC-ospf-1-area-0.0.0.0] network 20.1.1.0 0.0.0.255
[DeviceC-ospf-1-area-0.0.0.0] network 100.1.1.0 0.0.0.255
[DeviceC-ospf-1-area-0.0.0.0] quit
[DeviceC-ospf-1] quit
# 创建VLAN 10、20和200。
<DeviceD> system-view
[DeviceD] vlan 10
[DeviceD-vlan10] quit
[DeviceD] vlan 20
[DeviceD-vlan20] quit
[DeviceD] vlan 200
# 将HundredGigE1/0/3加入VLAN 200。
[DeviceD] vlan 200
[DeviceD-vlan200] port hundredgige 1/0/3
[DeviceD-vlan200] quit
# 创建二层聚合接口2，并配置该接口为动态聚合模式。
[DeviceD] interface bridge-aggregation 2
[DeviceD-Bridge-Aggregation2] link-aggregation mode dynamic
[DeviceD-Bridge-Aggregation2] quit
# 将端口HundredGigE1/0/1和HundredGigE1/0/2加入到聚合组2中。
[DeviceD] interface range hundredgige 1/0/1 to hundredgige 1/0/2
[DeviceD-if-range] port link-aggregation group 2
[DeviceD-if-range] quit
# 配置二层聚合接口2为Trunk端口，并允许VLAN 10和VLAN 20的报文通过。
[DeviceD] interface bridge-aggregation 2
[DeviceD-Bridge-Aggregation2] port link-type trunk
Configuring HundredGigE1/0/1 done.
Configuring HundredGigE1/0/2 done.
[DeviceD-Bridge-Aggregation2] port trunk permit vlan 10 20
Configuring HundredGigE1/0/1 done.
Configuring HundredGigE1/0/2 done.
[DeviceD-Bridge-Aggregation2] quit
# 创建上行接口Vlan-interface200，并配置其IP地址。
[DeviceD] interface vlan-interface 200
[DeviceD-Vlan-interface200] ip address 200.1.1.1 24
[DeviceD-Vlan-interface200] quit
# 创建接口Vlan-interface10和Vlan-interface20，并配置其IP地址。
[DeviceD] interface vlan-interface 10
[DeviceD-vlan-interface10] ip address 10.1.1.2 24
[DeviceD-vlan-interface10] quit
[DeviceD] interface vlan-interface 20
[DeviceD-vlan-interface20] ip address 20.1.1.2 24
[DeviceD-vlan-interface20] quit
# 为接口Vlan-interface10创建备份组1，并配置备份组1的虚拟IP地址为10.1.1.100。
[DeviceD] interface vlan-interface 10
[DeviceD-Vlan-interface10] vrrp vrid 1 virtual-ip 10.1.1.100
[DeviceD-vlan-interface10] quit
# 为接口Vlan-interface20创建备份组2，并配置备份组2的虚拟IP地址为20.1.1.100。
[DeviceD] interface vlan-interface 20
[DeviceD-Vlan-interface20] vrrp vrid 2 virtual-ip 20.1.1.100
# 设置Device D在备份组2中的优先级为200，以保证Device D成为Master，从而和Device D在M-LAG中角色一致。
[DeviceD-Vlan-interface20] vrrp vrid 2 priority 200
# 设置Device D在备份组2中工作在抢占方式，配置抢占延迟时间为500厘秒。
[DeviceD-Vlan-interface20] vrrp vrid 2 preempt-mode delay 500
[DeviceD-Vlan-interface20] quit
# 创建和上行端口HundredGigE1/0/3关联的Track项2。
[DeviceD] track 2 interface hundredgige 1/0/3
# 配置监视Track项2，Track项的状态为Negative时，Device D在VRRP备份组2中的优先级降低的数值为150。
[DeviceD] interface vlan-interface 20
[DeviceD-Vlan-interface20] vrrp vrid 2 track 2 priority reduced 150
[DeviceD-Vlan-interface20] quit
# 配置OSPF。
[DeviceD] ospf
[DeviceD-ospf-1] area 0
[DeviceD-ospf-1-area-0.0.0.0] network 10.1.1.0 0.0.0.255
[DeviceD-ospf-1-area-0.0.0.0] network 20.1.1.0 0.0.0.255
[DeviceD-ospf-1-area-0.0.0.0] network 200.1.1.0 0.0.0.255
[DeviceD-ospf-1-area-0.0.0.0] quit
[DeviceD-ospf-1] quit
# 创建VLAN 100，并将接口HundredGigE1/0/1加入该VLAN。
<DeviceE> system-view
[DeviceE] vlan 100
[DeviceE-vlan100] port hundredgige 1/0/1
[DeviceE-vlan100] quit
# 创建接口Vlan-interface100，并配置其IP地址。
[DeviceE] interface vlan-interface 100
[DeviceE-vlan-interface100] ip address 100.1.1.2 24
[DeviceE-vlan-interface100] quit
# 创建VLAN 200，并将接口HundredGigE1/0/2加入该VLAN。
[DeviceE] vlan 200
[DeviceE-vlan200] port hundredgige 1/0/2
[DeviceE-vlan200] quit
# 创建接口Vlan-interface200，并配置其IP地址。
[DeviceE] interface vlan-interface 200
[DeviceE-vlan-interface200] ip address 200.1.1.2 24
[DeviceE-vlan-interface200] quit
# 创建VLAN 30，并将接口HundredGigE1/0/3加入该VLAN。
[DeviceE] vlan 30
[DeviceE-vlan30] port hundredgige 1/0/3
[DeviceE-vlan30] quit
# 创建接口Vlan-interface30，并配置其IP地址。
[DeviceE] interface vlan-interface 30
[DeviceE-vlan-interface30] ip address 30.1.1.1 24
[DeviceE-vlan-interface30] quit
# 配置OSPF。
[DeviceD] ospf
[DeviceD-ospf-1] area 0
[DeviceD-ospf-1-area-0.0.0.0] network 100.1.1.0 0.0.0.255
[DeviceD-ospf-1-area-0.0.0.0] network 200.1.1.0 0.0.0.255
[DeviceD-ospf-1-area-0.0.0.0] network 30.1.1.0 0.0.0.255
[DeviceD-ospf-1-area-0.0.0.0] quit
[DeviceD-ospf-1] quit
# 创建VLAN 10和VLAN 20。
[DeviceF] vlan 10
[DeviceF-vlan10] quit
[DeviceF] vlan 20
[DeviceF-vlan20] quit
# 创建动态二层聚合接口4。
[DeviceF] interface bridge-aggregation 4
[DeviceF-Bridge-Aggregation4] link-aggregation mode dynamic
[DeviceF-Bridge-Aggregation4] quit
# 将端口HundredGigE1/0/1～HundredGigE1/0/4加入到聚合组4中。
[DeviceF] interface range hundredgige 1/0/1 to hundredgige 1/0/4
[DeviceF-if-range] port link-aggregation group 4
[DeviceF-if-range] quit
# 配置二层聚合接口4为Trunk端口，并允许VLAN 10和VLAN 20的报文通过。
[DeviceF] interface bridge-aggregation 4
[DeviceF-Bridge-Aggregation4] port link-type trunk
Configuring HundredGigE1/0/1 done.
Configuring HundredGigE1/0/2 done.
Configuring HundredGigE1/0/3 done.
Configuring HundredGigE1/0/4 done.
[DeviceF-Bridge-Aggregation4] port trunk permit vlan 10 20
Configuring HundredGigE1/0/1 done.
Configuring HundredGigE1/0/2 done.
Configuring HundredGigE1/0/3 done.
Configuring HundredGigE1/0/4 done.
[DeviceF-Bridge-Aggregation4] quit
# 在Device A上查看M-LAG的简要信息和详细信息。可以看到Device A和Device B成功组成分布式聚合系统。
[DeviceA] display m-lag summary
Flags: A -- Aggregate interface down, B -- No peer M-LAG interface configured
C -- Configuration consistency check failed
Peer-link interface: BAGG3
Peer-link interface state (cause): UP
Keepalive link state (cause): UP
M-LAG interface information
M-LAG IF M-LAG group Local state (cause) Peer state Remaining down time(s)
BAGG4 4 UP UP -
[DeviceA] display m-lag verbose
Flags: A -- Home_Gateway, B -- Neighbor_Gateway, C -- Other_Gateway,
D -- PeerLink_Activity, E -- DRCP_Timeout, F -- Gateway_Sync,
G -- Port_Sync, H -- Expired
Peer-link interface/Peer-link interface ID: BAGG3/1
State: UP
Cause: -
Local DRCP flags/Peer DRCP flags: ABDFG/ABDFG
Local Selected ports (index): HGE1/0/3 (2), HGE1/0/4 (5)
Peer Selected ports indexes: 2, 5
M-LAG interface/M-LAG group ID: BAGG4/4
Local M-LAG interface state: UP
Peer M-LAG interface state: UP
M-LAG group state: UP
Local M-LAG interface down cause: -
Remaining M-LAG DOWN time: -
Local M-LAG interface LACP MAC: Config=0001-0001-0001, Effective=0001-0001-0001
Peer M-LAG interface LACP MAC: Config=0001-0001-0001, Effective=0001-0001-0001
Local M-LAG interface LACP priority: Config=32768, Effective=123
Peer M-LAG interface LACP priority: Config=32768, Effective=123
Local DRCP flags/Peer DRCP flags: ABDFG/ABDFG
Local Selected ports (index): HGE1/0/1 (16385), HGE1/0/2 (16388)
Peer Selected ports indexes: 32769, 32772
# 在Device F上分别查看聚合组的详细信息。可以看到Device F的端口HundredGigE1/0/1～HundredGigE1/0/4均处于选中状态，此时Device F将Device A和Device B认为是一台设备，从而实现了跨设备的聚合。
[DeviceF] display link-aggregation verbose
Loadsharing Type: Shar -- Loadsharing, NonS -- Non-Loadsharing
Port Status: S -- Selected, U -- Unselected, I -- Individual
Port: A -- Auto port, M -- Management port, R -- Reference port
Flags: A -- LACP_Activity, B -- LACP_Timeout, C -- Aggregation,
D -- Synchronization, E -- Collecting, F -- Distributing,
G -- Defaulted, H -- Expired
Aggregate Interface: Bridge-Aggregation4
Creation Mode: Manual
Aggregation Mode: Dynamic
Loadsharing Type: Shar
Management VLANs: None
System ID: 0x8000, 1eba-3c46-0300
Local:
Port Status Priority Index Oper-Key Flag
HGE1/0/1 S 32768 1 1 {ACDEF}
HGE1/0/2 S 32768 2 1 {ACDEF}
HGE1/0/3 S 32768 3 1 {ACDEF}
HGE1/0/4 S 32768 4 1 {ACDEF}
Remote:
Actor Priority Index Oper-Key SystemID Flag
HGE1/0/1(R) 32768 16385 40004 0x7b , 0001-0001-0001 {ACDEF}
HGE1/0/2 32768 16388 40004 0x7b , 0001-0001-0001 {ACDEF}
HGE1/0/3 32768 32769 40004 0x7b , 0001-0001-0001 {ACDEF}
HGE1/0/4 32768 32772 40004 0x7b , 0001-0001-0001 {ACDEF}
# 在Device C和Device D上查看VRRP备份组的信息。可以看到Device C在备份组1中为Master，Device D在备份组2中为Master，从而保证区域A的主机通过Device C与外部通信，区域B的主机通过Device D与外部通信。
[DeviceC] display vrrp
IPv4 Virtual Router Information:
Running mode : Standard
Total number of virtual routers : 2
Interface VRID State Running Adver Auth Virtual
Pri Timer Type IP
---------------------------------------------------------------------
Vlan10 1 Master 200 100 None 10.1.1.100
Vlan20 2 Backup 100 100 None 20.1.1.100
[DeviceD] display vrrp
IPv4 Virtual Router Information:
Running mode : Standard
Total number of virtual routers : 2
Interface VRID State Running Adver Auth Virtual
Pri Timer Type IP
---------------------------------------------------------------------
Vlan10 1 Backup 100 100 None 10.1.1.100
Vlan20 2 Master 200 100 None 20.1.1.100
# 查看Device E上的OSPF邻居信息，可以看到Device E与Device C和Device D分别建立OSPF邻居，从而确保了三层互通。
[DeviceE] display ospf peer
OSPF Process 1 with Router ID 200.1.1.2
Neighbor Brief Information
Area: 0.0.0.0
Router ID Address Pri Dead-Time State Interface
100.1.1.1 100.1.1.1 1 35 Full/BDR Vlan100
200.1.1.1 200.1.1.1 1 33 Full/BDR Vlan200
# 在区域A的主机上ping 30.1.1.1，可以ping通。
C:\Documents and Settings\Administrator>ping 30.1.1.1
Pinging 30.1.1.1 with 32 bytes of data:
Reply from 30.1.1.1: bytes=32 time=1ms TTL=126
Reply from 30.1.1.1: bytes=32 time=1ms TTL=126
Reply from 30.1.1.1: bytes=32 time=1ms TTL=126
Reply from 30.1.1.1: bytes=32 time=1ms TTL=126
Ping statistics for 30.1.1.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 1ms, Maximum = 1ms, Average = 1ms
· Device A：
#
vlan 10
#
vlan 20
#
interface Bridge-Aggregation1
port link-type trunk
port trunk permit vlan 1 10 20
link-aggregation mode dynamic
#
interface Bridge-Aggregation3
port link-type trunk
port trunk permit vlan all
link-aggregation mode dynamic
port m-lag peer-link 1
#
interface Bridge-Aggregation4
port link-type trunk
port trunk permit vlan 1 10 20
link-aggregation mode dynamic
port m-lag group 4
#
interface HundredGigE1/0/5
port link-mode route
ip address 1.1.1.1 255.255.255.0
#
interface HundredGigE1/0/1
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 10 20
port link-aggregation group 4
#
interface HundredGigE1/0/2
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 10 20
port link-aggregation group 4
#
interface HundredGigE1/0/3
port link-mode bridge
port link-type trunk
port trunk permit vlan all
port link-aggregation group 3
#
interface HundredGigE1/0/4
port link-mode bridge
port link-type trunk
port trunk permit vlan all
port link-aggregation group 3
#
interface HundredGigE1/0/6
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 10 20
port link-aggregation group 1
#
interface HundredGigE1/0/7
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 10 20
port link-aggregation group 1
#
m-lag system-mac 0001-0001-0001
m-lag system-number 1
m-lag system-priority 123
m-lag keepalive ip destination 1.1.1.2 source 1.1.1.1
#
m-lag mad exclude interface HundredGigE1/0/5
#
· Device B：
#
vlan 10
#
vlan 20
#
interface Bridge-Aggregation2
port link-type trunk
port trunk permit vlan 1 10 20
link-aggregation mode dynamic
#
interface Bridge-Aggregation3
port link-type trunk
port trunk permit vlan all
link-aggregation mode dynamic
port m-lag peer-link 1
#
interface Bridge-Aggregation4
port link-type trunk
port trunk permit vlan 1 10 20
link-aggregation mode dynamic
port m-lag group 4
#
interface HundredGigE1/0/5
port link-mode route
ip address 1.1.1.2 255.255.255.0
#
interface HundredGigE1/0/1
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 10 20
port link-aggregation group 4
#
interface HundredGigE1/0/2
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 10 20
port link-aggregation group 4
#
interface HundredGigE1/0/3
port link-mode bridge
port link-type trunk
port trunk permit vlan all
port link-aggregation group 3
#
interface HundredGigE1/0/4
port link-mode bridge
port link-type trunk
port trunk permit vlan all
port link-aggregation group 3
#
interface HundredGigE1/0/6
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 10 20
port link-aggregation group 2
#
interface HundredGigE1/0/7
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 10 20
port link-aggregation group 2
#
m-lag system-mac 0001-0001-0001
m-lag system-number 2
m-lag system-priority 123
m-lag keepalive ip destination 1.1.1.1 source 1.1.1.2
#
m-lag mad exclude interface HundredGigE1/0/5
#
· Device C：
#
ospf 1
area 0.0.0.0
network 10.1.1.0 0.0.0.255
network 20.1.1.0 0.0.0.255
network 100.1.1.0 0.0.0.255
#
vlan 10
#
vlan 20
#
vlan 100
#
interface Bridge-Aggregation1
port link-type trunk
port trunk permit vlan 1 10 20
link-aggregation mode dynamic
#
interface Vlan-interface10
ip address 10.1.1.1 255.255.255.0
vrrp vrid 1 virtual-ip 10.1.1.100
vrrp vrid 1 priority 200
vrrp vrid 1 preempt-mode delay 500
vrrp vrid 1 track 1 priority reduced 150
#
interface Vlan-interface20
ip address 20.1.1.1 255.255.255.0
vrrp vrid 2 virtual-ip 20.1.1.100
#
interface Vlan-interface100
ip address 100.1.1.1 255.255.255.0
#
interface HundredGigE1/0/1
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 10 20
port link-aggregation group 1
#
interface HundredGigE1/0/2
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 10 20
port link-aggregation group 1
#
interface HundredGigE1/0/3
port link-mode bridge
port access vlan 100
#
track 1 interface HundredGigE1/0/3
#
· Device D：
#
ospf 1
area 0.0.0.0
network 10.1.1.0 0.0.0.255
network 20.1.1.0 0.0.0.255
network 200.1.1.0 0.0.0.255
#
vlan 10
#
vlan 20
#
vlan 200
#
interface Bridge-Aggregation2
port link-type trunk
port trunk permit vlan 1 10 20
link-aggregation mode dynamic
#
interface Vlan-interface10
ip address 10.1.1.2 255.255.255.0
vrrp vrid 1 virtual-ip 10.1.1.100
#
interface Vlan-interface20
ip address 20.1.1.2 255.255.255.0
vrrp vrid 2 virtual-ip 20.1.1.100
vrrp vrid 2 priority 200
vrrp vrid 2 preempt-mode delay 500
vrrp vrid 2 track 2 priority reduced 150
#
interface Vlan-interface200
ip address 200.1.1.1 255.255.255.0
#
interface HundredGigE1/0/1
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 10 20
port link-aggregation group 2
#
interface HundredGigE1/0/2
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 10 20
port link-aggregation group 2
#
interface HundredGigE1/0/3
port link-mode bridge
port access vlan 200
#
track 2 interface HundredGigE1/0/3
#
· Device E：
#
ospf 1
area 0.0.0.0
network 30.1.1.0 0.0.0.255
network 100.1.1.0 0.0.0.255
network 200.1.1.0 0.0.0.255
#
vlan 30
#
vlan 100
#
vlan 200
#
interface Vlan-interface30
ip address 30.1.1.1 255.255.255.0
#
interface Vlan-interface100
ip address 100.1.1.2 255.255.255.0
#
interface Vlan-interface200
ip address 200.1.1.2 255.255.255.0
#
interface HundredGigE1/0/1
port link-mode bridge
port access vlan 100
#
interface HundredGigE1/0/2
port link-mode bridge
port access vlan 200
#
interface HundredGigE1/0/3
port link-mode bridge
port access vlan 30
#
· Device F：
#
vlan 10
#
vlan 20
#
interface Bridge-Aggregation4
port link-type trunk
port trunk permit vlan 1 10 20
link-aggregation mode dynamic
#
interface HundredGigE1/0/1
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 10 20
port link-aggregation group 4
#
interface HundredGigE1/0/2
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 10 20
port link-aggregation group 4
#
interface HundredGigE1/0/3
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 10 20
port link-aggregation group 4
#
interface HundredGigE1/0/4
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 10 20
port link-aggregation group 4
#
如图2所示，Device A和Device B为汇聚层设备，通过在Device A和Device B上部署M-LAG和VRRP，可以满足以下要求：
· 当Device A侧链路发生故障时，流量可以快速切换到Device B侧链路，保证可靠性。同时为了高效利用带宽，Device A和Device B侧链路可以同时转发报文，实现负载分担。
· 在网关设备工作正常时，区域A用户通过网关设备Device A进行数据转发；区域B用户通过网关设备Device B进行数据转发，实现流量的负载分担。
· 当Device A或者Device A的上行接口发生故障后，Device B能够迅速承担区域A内主机流量的转发任务；Device A故障恢复后，继续承担VRRP备份组1的网关功能。
· 当Device B或者Device B的上行接口发生故障后，Device A能够迅速承担区域B内主机流量的转发任务；Device B故障恢复后，继续承担VRRP备份组2的网关功能。
· 在Device A、Device B和Device E上搭建OSPF，Device A和Device B通过OSPF发布区域A和区域B内的主机所在网段的路由，以实现区域A和区域B内的主机与外部网络的三层互通。
图2 基于汇聚层的M-LAG配置组网图
|
设备 |
接口 |
IP地址 |
设备 |
接口 |
IP地址 |
|
Device A |
HGE1/0/5 |
1.1.1.1/24 |
Device B |
HGE1/0/5 |
1.1.1.2/24 |
|
|
Vlan-int100 |
100.1.1.1/24 |
|
Vlan-int100 |
100.1.1.2/24 |
|
|
Vlan-int101 |
101.1.1.1/24 |
|
Vlan-int101 |
101.1.1.2/24 |
|
|
Vlan-int10 |
10.1.1.1/24 |
|
Vlan-int20 |
20.1.1.1/24 |
|
|
Virtual IP 1 |
100.1.1.100/24 |
|
Virtual IP 1 |
100.1.1.100/24 |
|
|
Virtual IP 2 |
101.1.1.100/24 |
|
Virtual IP 2 |
101.1.1.100/24 |
|
Device E |
Vlan-int10 |
10.1.1.2/24 |
|
|
|
|
|
Vlan-int20 |
20.1.1.2/24 |
|
|
|
|
|
Vlan-int30 |
30.1.1.1/24 |
|
|
|
· 分别在Device A和Device B上配置保留接口的IP地址，且保证能够三层互通，用于M-LAG主备设备间Keepalive报文的传输。
· 为了让Device A和Device B分别成为VRRP备份组1和VRRP备份组2中的Master，需要在VRRP备份组1中为Device A配置较高的优先级，在VRRP备份组2中为Device B配置较高的优先级。
本举例是在R2825版本上进行配置和验证的。
配置M-LAG时，需要注意：
· 要求所有M-LAG设备配置相同的系统MAC地址和系统优先级，配置不同的系统编号。
· 一台M-LAG设备上只能配置一个peer-link。
· 建议用户将Keepalive接口配置为保留接口，避免在M-LAG建立过程中被置为MAD DOWN状态，造成错误检测。
配置VRRP时，需要注意：
· 备份组的虚拟IP地址不能为全零地址（0.0.0.0）、广播地址（255.255.255.255）、环回地址、非A/B/C类地址和其它非法IP地址（如0.0.0.1）。
· 建议将备份组的虚拟IP地址和备份组中设备下行接口的IP地址配置为同一网段，否则可能导致局域网内的主机无法访问外部网络。
# 配置M-LAG系统参数。
<DeviceA> system-view
[DeviceA] m-lag system-mac 1-1-1
Changing the system MAC might flap the intra-portal link and cause M-LAG system setup failure. Continue? [Y/N]:y
[DeviceA] m-lag system-number 1
Changing the system number might flap the intra-portal link and cause M-LAG system setup failure. Continue? [Y/N]:y
[DeviceA] m-lag system-priority 123
Changing the system priority might flap the intra-portal link and cause M-LAG system setup failure. Continue? [Y/N]:y
# 配置Keepalive报文的目的IP地址和源IP地址。
[DeviceA] m-lag keepalive ip destination 1.1.1.2 source 1.1.1.1
# 配置端口HundredGigE1/0/5工作在三层模式，并配置IP地址为Keepalive报文的源IP地址。
[DeviceA] interface hundredgige 1/0/5
[DeviceA-HundredGigE1/0/5] port link-mode route
[DeviceA-HundredGigE1/0/5] ip address 1.1.1.1 24
[DeviceA-HundredGigE1/0/5] quit
# 配置Keepalive链路接口为保留接口。
[DeviceA] m-lag mad exclude interface hundredgige 1/0/5
# 创建动态二层聚合接口125。
[DeviceA] interface bridge-aggregation 125
[DeviceA-Bridge-Aggregation125] link-aggregation mode dynamic
[DeviceA-Bridge-Aggregation125] quit
# 分别将端口HundredGigE1/0/3和HundredGigE1/0/4加入到聚合组125中。
[DeviceA] interface hundredgige 1/0/3
[DeviceA-HundredGigE1/0/3] port link-aggregation group 125
[DeviceA-HundredGigE1/0/3] quit
[DeviceA] interface hundredgige 1/0/4
[DeviceA-HundredGigE1/0/4] port link-aggregation group 125
[DeviceA-HundredGigE1/0/4] quit
# 配置二层聚合接口125为peer-link。
[DeviceA] interface bridge-aggregation 125
[DeviceA-Bridge-Aggregation125] port m-lag peer-link 1
[DeviceA-Bridge-Aggregation125] quit
# 创建动态二层聚合接口100，并配置该接口为M-LAG接口1。
[DeviceA] interface bridge-aggregation 100
[DeviceA-Bridge-Aggregation100] link-aggregation mode dynamic
[DeviceA-Bridge-Aggregation100] port m-lag group 1
[DeviceA-Bridge-Aggregation100] quit
# 将端口HundredGigE1/0/1加入到聚合组100中。
[DeviceA] interface hundredgige 1/0/1
[DeviceA-HundredGigE1/0/1] port link-aggregation group 100
[DeviceA-HundredGigE1/0/1] quit
# 创建动态二层聚合接口101，并配置该接口为M-LAG接口2。
[DeviceA] interface bridge-aggregation 101
[DeviceA-Bridge-Aggregation101] link-aggregation mode dynamic
[DeviceA-Bridge-Aggregation101] port m-lag group 2
[DeviceA-Bridge-Aggregation101] quit
# 将端口HundredGigE1/0/2加入到聚合组101中。
[DeviceA] interface hundredgige 1/0/2
[DeviceA-HundredGigE1/0/2] port link-aggregation group 101
[DeviceA-HundredGigE1/0/2] quit
# 创建VLAN 10、100和101。
[DeviceA] vlan 10
[DeviceA-vlan10] quit
[DeviceA] vlan 100
[DeviceA-vlan100] quit
[DeviceA] vlan 101
[DeviceA-vlan101] quit
# 将端口HundredGigE1/0/6加入VLAN 10。
[DeviceA] vlan 10
[DeviceA-vlan10] port hundredgige 1/0/6
[DeviceA-vlan10] quit
# 配置二层聚合接口100为Trunk端口，并允许VLAN 100的报文通过。
[DeviceA] interface bridge-aggregation 100
[DeviceA-Bridge-Aggregation100] port link-type trunk
Configuring HundredGigE1/0/1 done.
[DeviceA-Bridge-Aggregation100] port trunk permit vlan 100
Configuring HundredGigE1/0/1 done.
[DeviceA-Bridge-Aggregation100] quit
# 配置二层聚合接口101为Trunk端口，并允许VLAN 101的报文通过。
[DeviceA] interface bridge-aggregation 101
[DeviceA-Bridge-Aggregation101] port link-type trunk
Configuring HundredGigE1/0/2 done.
[DeviceA-Bridge-Aggregation101] port trunk permit vlan 101
Configuring HundredGigE1/0/2 done.
[DeviceA-Bridge-Aggregation101] quit
# 创建接口Vlan-interface10、Vlan-interface100和Vlan-interface101，并配置其IP地址。
[DeviceA] interface vlan-interface 10
[DeviceA-vlan-interface10] ip address 10.1.1.1 24
[DeviceA-vlan-interface10] quit
[DeviceA] interface vlan-interface 100
[DeviceA-vlan-interface100] ip address 100.1.1.1 24
[DeviceA-vlan-interface100] quit
[DeviceA] interface vlan-interface 101
[DeviceA-vlan-interface101] ip address 101.1.1.1 24
[DeviceA-vlan-interface101] quit
# 配置OSPF。
[DeviceA] ospf
[DeviceA-ospf-1] area 0
[DeviceA-ospf-1-area-0.0.0.0] network 10.1.1.0 0.0.0.255
[DeviceA-ospf-1-area-0.0.0.0] network 100.1.1.0 0.0.0.255
[DeviceA-ospf-1-area-0.0.0.0] network 101.1.1.0 0.0.0.255
[DeviceA-ospf-1-area-0.0.0.0] quit
[DeviceA-ospf-1] quit
# 为接口Vlan-interface100创建备份组1，并配置备份组1的虚拟IP地址为100.1.1.100。
[DeviceA] interface vlan-interface 100
[DeviceA-Vlan-interface100] vrrp vrid 1 virtual-ip 100.1.1.100
# 设置Device A在备份组1中的优先级为200，以保证Device A成为Master，从而和Device A在M-LAG中角色一致。
[DeviceA-Vlan-interface100] vrrp vrid 1 priority 200
[DeviceA-Vlan-interface100] quit
# 为接口Vlan-interface101创建备份组2，并配置备份组2的虚拟IP地址为101.1.1.100。
[DeviceA] interface vlan-interface 101
[DeviceA-Vlan-interface101] vrrp vrid 2 virtual-ip 101.1.1.100
[DeviceA-Vlan-interface101] quit
# 设置Device A在备份组1中工作在抢占方式，配置抢占延迟时间为500厘秒。
[DeviceA] interface vlan-interface 100
[DeviceA-Vlan-interface100] vrrp vrid 1 preempt-mode delay 500
[DeviceA-Vlan-interface100] quit
# 创建和上行端口HundredGigE1/0/6关联的Track项1。
[DeviceA] track 1 interface hundredgige 1/0/6
# 配置监视Track项1，Track项的状态为Negative时，Device A在VRRP备份组1中的优先级降低的数值为150。
[DeviceA] interface vlan-interface 100
[DeviceA-Vlan-interface100] vrrp vrid 1 track 1 priority reduced 150
[DeviceA-Vlan-interface100] quit
# 配置M-LAG系统参数。
<DeviceB> system-view
[DeviceB] m-lag system-mac 1-1-1
Changing the system MAC might flap the intra-portal link and cause M-LAG system setup failure. Continue? [Y/N]:y
[DeviceB] m-lag system-number 2
Changing the system number might flap the intra-portal link and cause M-LAG system setup failure. Continue? [Y/N]:y
[DeviceB] m-lag system-priority 123
Changing the system priority might flap the intra-portal link and cause M-LAG system setup failure. Continue? [Y/N]:y
# 配置Keepalive报文的目的IP地址和源IP地址。
[DeviceB] m-lag keepalive ip destination 1.1.1.1 source 1.1.1.2
# 配置端口HundredGigE1/0/5工作在三层模式，并配置IP地址为Keepalive报文的源IP地址。
[DeviceB] interface hundredgige 1/0/5
[DeviceB-HundredGigE1/0/5] port link-mode route
[DeviceB-HundredGigE1/0/5] ip address 1.1.1.2 24
[DeviceB-HundredGigE1/0/5] quit
# 配置Keepalive链路接口为保留接口。
[DeviceB] m-lag mad exclude interface hundredgige 1/0/5
# 创建动态二层聚合接口125。
[DeviceB] interface bridge-aggregation 125
[DeviceB-Bridge-Aggregation125] link-aggregation mode dynamic
[DeviceB-Bridge-Aggregation125] quit
# 分别将端口HundredGigE1/0/3和HundredGigE1/0/4加入到聚合组125中。
[DeviceB] interface hundredgige 1/0/3
[DeviceB-HundredGigE1/0/3] port link-aggregation group 125
[DeviceB-HundredGigE1/0/3] quit
[DeviceB] interface hundredgige 1/0/4
[DeviceB-HundredGigE1/0/4] port link-aggregation group 125
[DeviceB-HundredGigE1/0/4] quit
# 配置二层聚合接口125为peer-link。
[DeviceB] interface bridge-aggregation 125
[DeviceB-Bridge-Aggregation125] port m-lag peer-link 1
[DeviceB-Bridge-Aggregation125] quit
# 创建动态二层聚合接口100，并配置该接口为M-LAG接口1。
[DeviceB] interface bridge-aggregation 100
[DeviceB-Bridge-Aggregation100] link-aggregation mode dynamic
[DeviceB-Bridge-Aggregation100] port m-lag group 1
[DeviceB-Bridge-Aggregation100] quit
# 将端口HundredGigE1/0/2加入到聚合组100中。
[DeviceB] interface hundredgige 1/0/2
[DeviceB-HundredGigE1/0/2] port link-aggregation group 100
[DeviceB-HundredGigE1/0/2] quit
# 创建动态二层聚合接口101，并配置该接口为M-LAG接口2。
[DeviceB] interface bridge-aggregation 101
[DeviceB-Bridge-Aggregation101] link-aggregation mode dynamic
[DeviceB-Bridge-Aggregation101] port m-lag group 2
[DeviceB-Bridge-Aggregation101] quit
# 将端口HundredGigE1/0/1加入到聚合组101中。
[DeviceB] interface hundredgige 1/0/1
[DeviceB-HundredGigE1/0/1] port link-aggregation group 101
[DeviceB-HundredGigE1/0/1] quit
# 创建VLAN 20、100和101。
[DeviceB] vlan 20
[DeviceB-vlan20] quit
[DeviceB] vlan 100
[DeviceB-vlan100] quit
[DeviceB] vlan 101
[DeviceB-vlan101] quit
# 将端口HundredGigE1/0/6加入VLAN 20。
[DeviceB] vlan 20
[DeviceB-vlan20] port hundredgige 1/0/6
[DeviceB-vlan20] quit
# 配置二层聚合接口100为Trunk端口，并允许VLAN 100的报文通过。
[DeviceB] interface bridge-aggregation 100
[DeviceB-Bridge-Aggregation100] port link-type trunk
Configuring HundredGigE1/0/2 done.
[DeviceB-Bridge-Aggregation100] port trunk permit vlan 100
Configuring HundredGigE1/0/2 done.
[DeviceB-Bridge-Aggregation100] quit
# 配置二层聚合接口101为Trunk端口，并允许VLAN 101的报文通过。
[DeviceB] interface bridge-aggregation 101
[DeviceB-Bridge-Aggregation101] port link-type trunk
Configuring HundredGigE1/0/1 done.
[DeviceB-Bridge-Aggregation101] port trunk permit vlan 101
Configuring HundredGigE1/0/1 done.
[DeviceB-Bridge-Aggregation101] quit
# 创建接口Vlan-interface20、Vlan-interface100和Vlan-interface101，并配置其IP地址。
[DeviceB] interface vlan-interface 20
[DeviceB-vlan-interface20] ip address 20.1.1.1 24
[DeviceB-vlan-interface20] quit
[DeviceB] interface vlan-interface 100
[DeviceB-vlan-interface100] ip address 100.1.1.2 24
[DeviceB-vlan-interface100] quit
[DeviceB] interface vlan-interface 101
[DeviceB-vlan-interface101] ip address 101.1.1.2 24
[DeviceB-vlan-interface101] quit
# 配置OSPF。
[DeviceB] ospf
[DeviceB-ospf-1] area 0
[DeviceB-ospf-1-area-0.0.0.0] network 20.1.1.0 0.0.0.255
[DeviceB-ospf-1-area-0.0.0.0] network 100.1.1.0 0.0.0.255
[DeviceB-ospf-1-area-0.0.0.0] network 101.1.1.0 0.0.0.255
[DeviceB-ospf-1-area-0.0.0.0] quit
[DeviceB-ospf-1] quit
# 为接口Vlan-interface100创建备份组1，并配置备份组1的虚拟IP地址为100.1.1.100。
[DeviceB] interface vlan-interface 100
[DeviceB-Vlan-interface100] vrrp vrid 1 virtual-ip 100.1.1.100
[DeviceB-Vlan-interface100] quit
# 为接口Vlan-interface101创建备份组2，并配置备份组2的虚拟IP地址为101.1.1.100。
[DeviceB] interface vlan-interface 101
[DeviceB-Vlan-interface101] vrrp vrid 2 virtual-ip 101.1.1.100
# 设置Device B在备份组2中的优先级为200，以保证Device B成为Master，从而和Device B在M-LAG中角色一致。
[DeviceA-Vlan-interface101] vrrp vrid 2 priority 200
# 设置Device B在备份组2中工作在抢占方式，配置抢占延迟时间为500厘秒。
[DeviceB-Vlan-interface101] vrrp vrid 2 preempt-mode delay 500
[DeviceB-Vlan-interface101] quit
# 创建和上行端口HundredGigE1/0/6关联的Track项2。
[DeviceB] track 2 interface hundredgige 1/0/6
# 配置监视Track项2，Track项的状态为Negative时，Device B在VRRP备份组2中的优先级降低的数值为150。
[DeviceB] interface vlan-interface 101
[DeviceB-Vlan-interface101] vrrp vrid 2 track 2 priority reduced 150
[DeviceB-Vlan-interface101] quit
# 创建VLAN 100。
[DeviceC] vlan 100
[DeviceC-vlan100] quit
# 将端口HundredGigE1/0/3加入VLAN 100。
[DeviceC] interface hundredgige 1/0/3
[DeviceC-HundredGigE1/0/3] port access vlan 100
[DeviceC-HundredGigE1/0/3] quit
# 创建二层聚合接口100，并配置该接口为动态聚合模式。
<DeviceC> system-view
[DeviceC] interface bridge-aggregation 100
[DeviceC-Bridge-Aggregation100] link-aggregation mode dynamic
[DeviceC-Bridge-Aggregation100] quit
# 分别将端口HundredGigE1/0/1和HundredGigE1/0/2加入到聚合组100中。
[DeviceC] interface range hundredgige 1/0/1 to hundredgige 1/0/2
[DeviceC-if-range] port link-aggregation group 100
[DeviceC-if-range] quit
# 配置二层聚合接口100为Trunk端口，并允许VLAN 100的报文通过。
[DeviceC] interface bridge-aggregation 100
[DeviceC-Bridge-Aggregation100] port link-type trunk
Configuring HundredGigE1/0/1 done.
Configuring HundredGigE1/0/2 done.
[DeviceC-Bridge-Aggregation100] port trunk permit vlan 100
Configuring HundredGigE1/0/1 done.
Configuring HundredGigE1/0/2 done.
[DeviceC-Bridge-Aggregation100] quit
# 创建VLAN 101。
[DeviceD] vlan 101
[DeviceD-vlan101] quit
# 将端口HundredGigE1/0/3加入VLAN 101。
[DeviceD] interface hundredgige 1/0/3
[DeviceD-HundredGigE1/0/3] port access vlan 101
[DeviceD-HundredGigE1/0/3] quit
# 创建二层聚合接口101，并配置该接口为动态聚合模式。
<DeviceD> system-view
[DeviceD] interface bridge-aggregation 101
[DeviceD-Bridge-Aggregation101] link-aggregation mode dynamic
[DeviceD-Bridge-Aggregation101] quit
# 分别将端口HundredGigE1/0/1和HundredGigE1/0/2加入到聚合组101中。
[DeviceD] interface range hundredgige 1/0/1 to hundredgige 1/0/2
[DeviceD-if-range] port link-aggregation group 101
[DeviceD-if-range] quit
# 配置二层聚合接口101为Trunk端口，并允许VLAN 101的报文通过。
[DeviceD] interface bridge-aggregation 101
[DeviceD-Bridge-Aggregation101] port link-type trunk
Configuring HundredGigE1/0/1 done.
Configuring HundredGigE1/0/2 done.
[DeviceD-Bridge-Aggregation101] port trunk permit vlan 101
Configuring HundredGigE1/0/1 done.
Configuring HundredGigE1/0/2 done.
[DeviceD-Bridge-Aggregation101] quit
# 创建VLAN 10，并将接口HundredGigE1/0/1加入该VLAN。
<DeviceE> system-view
[DeviceE] vlan 10
[DeviceE-vlan10] port hundredgige 1/0/1
[DeviceE-vlan10] quit
# 创建接口Vlan-interface10，并配置其IP地址。
[DeviceE] interface vlan-interface 10
[DeviceE-vlan-interface10] ip address 10.1.1.2 24
[DeviceE-vlan-interface10] quit
# 创建VLAN 20，并将接口HundredGigE1/0/2加入该VLAN。
[DeviceE] vlan 20
[DeviceE-vlan20] port hundredgige 1/0/2
[DeviceE-vlan20] quit
# 创建接口Vlan-interface20，并配置其IP地址。
[DeviceE] interface vlan-interface 20
[DeviceE-vlan-interface20] ip address 20.1.1.2 24
[DeviceE-vlan-interface20] quit
# 创建VLAN 30，并将接口HundredGigE1/0/3加入该VLAN。
[DeviceE] vlan 30
[DeviceE-vlan30] port hundredgige 1/0/3
[DeviceE-vlan30] quit
# 创建接口Vlan-interface30，并配置其IP地址。
[DeviceE] interface vlan-interface 30
[DeviceE-vlan-interface30] ip address 30.1.1.1 24
[DeviceE-vlan-interface30] quit
# 配置OSPF。
[DeviceE] ospf
[DeviceE-ospf-1] area 0
[DeviceE-ospf-1-area-0.0.0.0] network 10.1.1.0 0.0.0.255
[DeviceE-ospf-1-area-0.0.0.0] network 20.1.1.0 0.0.0.255
[DeviceE-ospf-1-area-0.0.0.0] network 30.1.1.0 0.0.0.255
[DeviceE-ospf-1-area-0.0.0.0] quit
[DeviceE-ospf-1] quit
# 在Device A上查看M-LAG的简要信息和详细信息。可以看到Device A和Device B成功组成分布式聚合系统。
[DeviceA] display m-lag summary
Flags: A -- Aggregate interface down, B -- No peer M-LAG interface configured
C -- Configuration consistency check failed
Peer-link interface: BAGG125
Peer-link interface state (cause): UP
Keepalive link state (cause): UP
M-LAG interface information
M-LAG IF M-LAG group Local state (cause) Peer state Remaining down time(s)
BAGG100 1 UP UP -
BAGG101 2 UP UP -
[DeviceA] display m-lag verbose
Flags: A -- Home_Gateway, B -- Neighbor_Gateway, C -- Other_Gateway,
D -- PeerLink_Activity, E -- DRCP_Timeout, F -- Gateway_Sync,
G -- Port_Sync, H -- Expired
Peer-link interface/Peer-link interface ID: BAGG125/1
State: UP
Cause: -
Local DRCP flags/Peer DRCP flags: ABDFG/ABDFG
Local Selected ports (index): HGE1/0/3 (1), HGE1/0/4 (4)
Peer Selected ports indexes: 1, 4
M-LAG interface/M-LAG group ID: BAGG100/1
Local M-LAG interface state: UP
Peer M-LAG interface state: UP
M-LAG group state: UP
Local M-LAG interface down cause: -
Remaining M-LAG DOWN time: -
Local M-LAG interface LACP MAC: Config=0001-0001-0001, Effective=0001-0001-0001
Peer M-LAG interface LACP MAC: Config=0001-0001-0001, Effective=0001-0001-0001
Local M-LAG interface LACP priority: Config=32768, Effective=123
Peer M-LAG interface LACP priority: Config=32768, Effective=123
Local DRCP flags/Peer DRCP flags: ABDFG/ABDFG
Local Selected ports (index): HGE1/0/1 (16386)
Peer Selected ports indexes: 32771
M-LAG interface/M-LAG group ID: BAGG101/2
Local M-LAG interface state: UP
Peer M-LAG interface state: UP
M-LAG group state: UP
Local M-LAG interface down cause: -
Remaining M-LAG DOWN time: -
Local M-LAG interface LACP MAC: Config=0001-0001-0001, Effective=0001-0001-0001
Peer M-LAG interface LACP MAC: Config=0001-0001-0001, Effective=0001-0001-0001
Local M-LAG interface LACP priority: Config=32768, Effective=123
Peer M-LAG interface LACP priority: Config=32768, Effective=123
Local DRCP flags/Peer DRCP flags: ABDFG/ABDFG
Local Selected ports (index): HGE1/0/2 (16387)
Peer Selected ports indexes: 32772
# 在Device C和Device D上分别查看二层聚合组100和二层聚合组101的详细信息。可以看到Device C和Device D的端口HundredGigE1/0/1、HundredGigE1/0/2均处于选中状态，此时Device C和Device D将DeviceA和DeviceB认为是一台设备，从而实现了跨设备的聚合。
[DeviceC] display link-aggregation verbose
Loadsharing Type: Shar -- Loadsharing, NonS -- Non-Loadsharing
Port Status: S -- Selected, U -- Unselected, I -- Individual
Port: A -- Auto port, M -- Management port, R -- Reference port
Flags: A -- LACP_Activity, B -- LACP_Timeout, C -- Aggregation,
D -- Synchronization, E -- Collecting, F -- Distributing,
G -- Defaulted, H -- Expired
Aggregate Interface: Bridge-Aggregation100
Creation Mode: Manual
Aggregation Mode: Dynamic
Loadsharing Type: Shar
Management VLANs: None
System ID: 0x8000, 8e33-8e4a-0300
Local:
Port Status Priority Index Oper-Key Flag
HGE1/0/1 S 32768 1 1 {ACDEF}
HGE1/0/2 S 32768 2 1 {ACDEF}
Remote:
Actor Priority Index Oper-Key SystemID Flag
HGE1/0/1(R) 32768 16386 40001 0x7b , 0001-0001-0001 {ACDEF}
HGE1/0/2 32768 32770 40001 0x7b , 0001-0001-0001 {ACDEF}
[DeviceD] display link-aggregation verbose
Loadsharing Type: Shar -- Loadsharing, NonS -- Non-Loadsharing
Port Status: S -- Selected, U -- Unselected, I -- Individual
Port: A -- Auto port, M -- Management port, R -- Reference port
Flags: A -- LACP_Activity, B -- LACP_Timeout, C -- Aggregation,
D -- Synchronization, E -- Collecting, F -- Distributing,
G -- Defaulted, H -- Expired
Aggregate Interface: Bridge-Aggregation101
Creation Mode: Manual
Aggregation Mode: Dynamic
Loadsharing Type: Shar
Management VLANs: None
System ID: 0x8000, 8e33-9400-0400
Local:
Port Status Priority Index Oper-Key Flag
HGE1/0/1 S 32768 1 1 {ACDEF}
HGE1/0/2 S 32768 2 1 {ACDEF}
Remote:
Actor Priority Index Oper-Key SystemID Flag
HGE1/0/1(R) 32768 16387 40002 0x7b , 0001-0001-0001 {ACDEF}
HGE1/0/2 32768 32771 40002 0x7b , 0001-0001-0001 {ACDEF}
# 在Device A和Device B上查看VRRP备份组的信息。可以看到Device A在备份组1中为Master，Device B在备份组2中为Master，从而保证区域A内的主机通过Device A与外部通信，区域B内的主机通过Device B与外部通信。
[DeviceA] display vrrp
IPv4 Virtual Router Information:
Running mode : Standard
Total number of virtual routers : 2
Interface VRID State Running Adver Auth Virtual
Pri Timer Type IP
---------------------------------------------------------------------
Vlan100 1 Master 200 100 None 100.1.1.100
Vlan101 2 Backup 100 100 None 101.1.1.100
[DeviceB] display vrrp
IPv4 Virtual Router Information:
Running mode : Standard
Total number of virtual routers : 2
Interface VRID State Running Adver Auth Virtual
Pri Timer Type IP
---------------------------------------------------------------------
Vlan100 1 Backup 100 100 None 100.1.1.100
Vlan101 2 Master 200 100 None 101.1.1.100
# 查看Device E上的OSPF邻居信息，可以看到Device E与Device A和Device B分别建立OSPF邻居，从而确保了三层互通。
[DeviceE] display ospf peer
OSPF Process 1 with Router ID 30.1.1.1
Neighbor Brief Information
Area: 0.0.0.0
Router ID Address Pri Dead-Time State Interface
101.1.1.1 10.1.1.1 1 34 Full/DR Vlan10
101.1.1.2 20.1.1.1 1 36 Full/DR Vlan20
# 在区域A内的主机上使用ping命令验证区域B内的主机是否可达（主机安装的操作系统为Windows XP），可以看出区域A和区域B内的主机可以互相ping通；在区域A内的主机ping 30.1.1.1，可以ping通。以上表明通过M-LAG实现三层转发。
C:\Documents and Settings\Administrator>ping 101.1.1.4
Pinging 101.1.1.4 with 32 bytes of data:
Reply from 101.1.1.4: bytes=32 time=1ms TTL=126
Reply from 101.1.1.4: bytes=32 time=1ms TTL=126
Reply from 101.1.1.4: bytes=32 time=1ms TTL=126
Reply from 101.1.1.4: bytes=32 time=1ms TTL=126
Ping statistics for 101.1.1.4:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 1ms, Maximum = 1ms, Average = 1ms
C:\Documents and Settings\Administrator>ping 30.1.1.1
Pinging 30.1.1.1 with 32 bytes of data:
Reply from 30.1.1.1: bytes=32 time=1ms TTL=126
Reply from 30.1.1.1: bytes=32 time=1ms TTL=126
Reply from 30.1.1.1: bytes=32 time=1ms TTL=126
Reply from 30.1.1.1: bytes=32 time=1ms TTL=126
Ping statistics for 30.1.1.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 1ms, Maximum = 1ms, Average = 1ms
· Device A：
#
ospf 1
area 0.0.0.0
network 10.1.1.0 0.0.0.255
network 100.1.1.0 0.0.0.255
network 101.1.1.0 0.0.0.255
#
vlan 10
#
vlan 100 to 101
#
interface Bridge-Aggregation100
port link-type trunk
port trunk permit vlan 1 100
link-aggregation mode dynamic
port m-lag group 1
#
interface Bridge-Aggregation101
port link-type trunk
port trunk permit vlan 1 101
link-aggregation mode dynamic
port m-lag group 2
#
interface Bridge-Aggregation125
port link-type trunk
port trunk permit vlan all
link-aggregation mode dynamic
port m-lag peer-link 1
#
interface Vlan-interface10
ip address 10.1.1.1 255.255.255.0
#
interface Vlan-interface100
ip address 100.1.1.1 255.255.255.0
vrrp vrid 1 virtual-ip 100.1.1.100
vrrp vrid 1 priority 200
vrrp vrid 1 preempt-mode delay 500
vrrp vrid 1 track 1 priority reduced 150
#
interface Vlan-interface101
ip address 101.1.1.1 255.255.255.0
vrrp vrid 2 virtual-ip 101.1.1.100
#
interface HundredGigE1/0/5
port link-mode route
ip address 1.1.1.1 255.255.255.0
#
interface HundredGigE1/0/1
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 100
port link-aggregation group 100
#
interface HundredGigE1/0/2
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 101
port link-aggregation group 101
#
interface HundredGigE1/0/3
port link-mode bridge
port link-type trunk
port trunk permit vlan all
port link-aggregation group 125
#
interface HundredGigE1/0/4
port link-mode bridge
port link-type trunk
port trunk permit vlan all
port link-aggregation group 125
#
interface HundredGigE1/0/6
port link-mode bridge
port access vlan 10
#
m-lag system-mac 0001-0001-0001
m-lag system-number 1
m-lag system-priority 123
m-lag keepalive ip destination 1.1.1.2 source 1.1.1.1
#
m-lag mad exclude interface HundredGigE1/0/5
#
track 1 interface HundredGigE1/0/6
#
· Device B：
ospf 1
area 0.0.0.0
network 20.1.1.0 0.0.0.255
network 100.1.1.0 0.0.0.255
network 101.1.1.0 0.0.0.255
#
vlan 20
#
vlan 100 to 101
#
interface Bridge-Aggregation100
port link-type trunk
port trunk permit vlan 1 100
link-aggregation mode dynamic
port m-lag group 1
#
interface Bridge-Aggregation101
port link-type trunk
port trunk permit vlan 1 101
link-aggregation mode dynamic
port m-lag group 2
#
interface Bridge-Aggregation125
port link-type trunk
port trunk permit vlan all
link-aggregation mode dynamic
port m-lag peer-link 1
#
interface Vlan-interface20
ip address 20.1.1.1 255.255.255.0
#
interface Vlan-interface100
ip address 100.1.1.2 255.255.255.0
vrrp vrid 1 virtual-ip 100.1.1.100
#
interface Vlan-interface101
ip address 101.1.1.2 255.255.255.0
vrrp vrid 2 virtual-ip 101.1.1.100
vrrp vrid 2 priority 200
vrrp vrid 2 preempt-mode delay 500
vrrp vrid 2 track 2 priority reduced 150
#
interface HundredGigE1/0/5
port link-mode route
ip address 1.1.1.2 255.255.255.0
#
interface HundredGigE1/0/1
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 101
port link-aggregation group 101
#
interface HundredGigE1/0/2
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 100
port link-aggregation group 100
#
interface HundredGigE1/0/3
port link-mode bridge
port link-type trunk
port trunk permit vlan all
port link-aggregation group 125
#
interface HundredGigE1/0/4
port link-mode bridge
port link-type trunk
port trunk permit vlan all
port link-aggregation group 125
#
interface HundredGigE1/0/6
port link-mode bridge
port access vlan 20
#
m-lag system-mac 0001-0001-0001
m-lag system-number 2
m-lag system-priority 123
m-lag keepalive ip destination 1.1.1.1 source 1.1.1.2
#
m-lag mad exclude interface HundredGigE1/0/5
#
track 2 interface HundredGigE1/0/6
#
· Device C：
#
vlan 100
#
interface Bridge-Aggregation100
port link-type trunk
port trunk permit vlan 1 100
link-aggregation mode dynamic
#
interface HundredGigE1/0/1
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 100
port link-aggregation group 100
#
interface HundredGigE1/0/2
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 100
port link-aggregation group 100
#
interface HundredGigE1/0/3
port link-mode bridge
port access vlan 100
#
· Device D：
#
vlan 101
#
interface Bridge-Aggregation101
port link-type trunk
port trunk permit vlan 1 101
link-aggregation mode dynamic
#
interface HundredGigE1/0/1
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 101
port link-aggregation group 101
#
interface HundredGigE1/0/2
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 101
port link-aggregation group 101
#
interface HundredGigE1/0/3
port link-mode bridge
port access vlan 101
#
· Device E：
#
ospf 1
area 0.0.0.0
network 10.1.1.0 0.0.0.255
network 20.1.1.0 0.0.0.255
network 30.1.1.0 0.0.0.255
#
vlan 10
#
vlan 20
#
vlan 30
#
interface Vlan-interface10
ip address 10.1.1.2 255.255.255.0
#
interface Vlan-interface20
ip address 20.1.1.2 255.255.255.0
#
interface Vlan-interface30
ip address 30.1.1.1 255.255.255.0
#
interface HundredGigE1/0/1
port link-mode bridge
port access vlan 10
#
interface HundredGigE1/0/2
port link-mode bridge
port access vlan 20
#
interface HundredGigE1/0/3
port link-mode bridge
port access vlan 30
#
如5.1 图3所示：
· Device A和Device B组成M-LAG系统，Device D通过M-LAG接口接入M-LAG系统。
· Device A和Device B通过等价路由接入到上行设备Device C。
由于用户对服务器的入网需求，现需要：
· 两台M-LAG设备Device A和Device B同时作为服务器的IPv4网关和IPv6网关。
· 如果Device A或Device B与上行设备Device C的链路故障，报文可以通过路由绕行到对端M-LAG设备处理，不影响服务器与外部网络的通信。
图3 M-LAG组网IPv4和IPv6 VLAN双活网关组网图
|
接口 |
IP地址 |
对接设备及接口 |
|
|
Device A |
HGE1/0/1 |
- |
Device D: HGE1/0/1 |
|
HGE1/0/2 |
- |
Device D: HGE1/0/2 |
|
|
HGE1/0/3 |
- |
Device B: HGE1/0/3 |
|
|
HGE1/0/4 |
- |
Device B: HGE1/0/4 |
|
|
HGE1/0/5 |
IPv4：21.1.1.1 IPv6：21::1 |
Device B: HGE1/0/5 |
|
|
HGE1/0/6 |
- |
Device C: HGE1/0/1 |
|
|
Vlan-int100 |
IPv4：100.1.1.100/24 IPv6：100::100/64 |
- |
|
|
Vlan-int101 |
IPv4：101.1.1.1/24 IPv6：101::1/64 |
Device B: Vlan-int101 · IPv4：101.1.1.2/24 · IPv6：101::2/64 |
|
|
Vlan-int32 |
IPv4：32.1.1.1/24 IPv6：32::1/64 |
Device C: Vlan-int32 · IPv4：32.1.1.2/24 · IPv6：32::2/64 |
|
|
Device B |
HGE1/0/1 |
- |
Device D: HGE1/0/3 |
|
HGE1/0/2 |
- |
Device D: HGE1/0/4 |
|
|
HGE1/0/3 |
- |
Device A: HGE1/0/3 |
|
|
HGE1/0/4 |
- |
Device A: HGE1/0/4 |
|
|
HGE1/0/5 |
IPv4：21.1.1.2 IPv6：21::2 |
Device A: HGE1/0/5 |
|
|
HGE1/0/6 |
- |
Device C: HGE1/0/6 |
|
|
Vlan-int100 |
IPv4：100.1.1.100/24 IPv6：100::100/64 |
- |
|
|
Vlan-int101 |
IPv4：101.1.1.2/24 IPv6：101::2/64 |
Device A: Vlan-int101 · IPv4：101.1.1.1/24 · IPv6：101::1/64 |
|
|
Vlan-int33 |
IPv4：33.1.1.1/24 IPv6：33::1/64 |
Device C: Vlan-int33 · IPv4：33.1.1.2/24 · IPv6：33::2/64 |
|
|
Device C |
HGE1/0/1 |
- |
Device A: HGE1/0/6 |
|
HGE1/0/2 |
- |
Device B: HGE1/0/6 |
|
|
HGE1/0/3 |
- |
Network 1 |
|
|
Vlan-int22 |
IPv4：22.1.1.1/24 IPv6：22::1/64 |
Network 1 |
|
|
Vlan-int32 |
IPv4：32.1.1.2/24 IPv6：32::2/64 |
Device A: Vlan-int32 · IPv4：32.1.1.1/24 · IPv6：32::1/64 |
|
|
Vlan-int33 |
IPv4：33.1.1.2/24 IPv6：33::2/64 |
Device B: Vlan-int33 · IPv4：33.1.1.1/24 · IPv6：33::1/64 |
|
|
Device D |
HGE1/0/1 |
- |
Device A: HGE1/0/1 |
|
HGE1/0/2 |
- |
Device A: HGE1/0/2 |
|
|
HGE1/0/3 |
- |
Device B: HGE1/0/1 |
|
|
HGE1/0/4 |
- |
Device B: HGE1/0/2 |
· Device A和Device B配置VLAN接口100作为IPv4和IPv6的双活网关。Device A和Device B在VLAN接口100配置相同的IPv4地址和MAC地址、IPv6地址和IPv6 Link-local地址，以便IPv4和IPv6用户均可通过该网关访问外部网络。
· 配置Device A和Device B通过VLAN接口101实现三层互通。如果Device A或Device B与上行设备Device C的链路故障，报文可以通过路由绕行到对端M-LAG设备处理。
本举例是在R2825版本上进行配置和验证的。
同级M-LAG设备的m-lag system-mac应配置为相同，不同级M-LAG设备的m-lag system-mac一定要配置为不同。
# 配置M-LAG系统参数。
<DeviceA> system-view
[DeviceA] m-lag system-mac 0002-0002-0002
[DeviceA] m-lag system-number 1
[DeviceA] m-lag system-priority 123
# 配置Keepalive报文的目的IP地址和源IP地址。
[DeviceA] m-lag keepalive ip destination 21.1.1.2 source 21.1.1.1
# 配置端口HundredGigE1/0/5工作在三层模式，并配置IP地址为Keepalive报文的源IP地址。
[DeviceA] interface hundredgige 1/0/5
[DeviceA-HundredGigE1/0/5] port link-mode route
[DeviceA-HundredGigE1/0/5] ip address 21.1.1.1 255.255.255.0
[DeviceA-HundredGigE1/0/5] ipv6 address 21::1 64
[DeviceA-HundredGigE1/0/5] quit
# 配置Keepalive链路接口为M-LAG保留接口。
[DeviceA] m-lag mad exclude interface hundredgige 1/0/5
# 创建动态二层聚合接口1。
[DeviceA] interface bridge-aggregation 1
[DeviceA-Bridge-Aggregation1] link-aggregation mode dynamic
[DeviceA-Bridge-Aggregation1] quit
# 分别将端口HundredGigE1/0/3和HundredGigE1/0/4加入到聚合组1中。
[DeviceA] interface hundredgige 1/0/3
[DeviceA-HundredGigE1/0/3] port link-aggregation group 1
[DeviceA-HundredGigE1/0/3] quit
[DeviceA] interface hundredgige 1/0/4
[DeviceA-HundredGigE1/0/4] port link-aggregation group 1
[DeviceA-HundredGigE1/0/4] quit
# 将二层聚合接口1配置为peer-link。
[DeviceA] interface bridge-aggregation 1
[DeviceA-Bridge-Aggregation1] port m-lag peer-link 1
[DeviceA-Bridge-Aggregation1] undo port trunk permit vlan 1
[DeviceA-Bridge-Aggregation1] quit
# 创建动态二层聚合接口3，并配置该接口为M-LAG接口1。
[DeviceA] interface bridge-aggregation 3
[DeviceA-Bridge-Aggregation3] link-aggregation mode dynamic
[DeviceA-Bridge-Aggregation3] port m-lag group 1
[DeviceA-Bridge-Aggregation3] quit
# 将端口HundredGigE1/0/1和HundredGigE1/0/2加入到聚合组3中。
[DeviceA] interface hundredgige 1/0/1
[DeviceA-HundredGigE1/0/1] port link-aggregation group 3
[DeviceA-HundredGigE1/0/1] quit
[DeviceA] interface hundredgige 1/0/2
[DeviceA-HundredGigE1/0/2] port link-aggregation group 3
[DeviceA-HundredGigE1/0/2] quit
# 创建VLAN 100、VLAN 101。
[DeviceA] vlan 100
[DeviceA-vlan100] quit
[DeviceA] vlan 101
[DeviceA-vlan101] quit
# 配置二层聚合接口3为Trunk端口，并允许VLAN 100的报文通过。
[DeviceA] interface bridge-aggregation 3
[DeviceA-Bridge-Aggregation3] port link-type trunk
[DeviceA-Bridge-Aggregation3] port trunk permit vlan 100
[DeviceA-Bridge-Aggregation3] undo port trunk permit vlan 1
[DeviceA-Bridge-Aggregation3] quit
# 配置接口Vlan-interface100的IPv4地址和MAC地址，使其作为IPv4双活网关，IPv4地址为100.1.1.100，MAC地址为0000-0010-0010。
[DeviceA] interface vlan-interface 100
[DeviceA-Vlan-interface100] ip address 100.1.1.100 255.255.255.0
[DeviceA-Vlan-interface100] mac-address 0000-0010-0010
# 配置接口Vlan-interface100的IPv6地址和Link-local地址，使其作为IPv6双活网关，IPv6地址为100::100，Link-local地址为FE80::80。
[DeviceA] interface vlan-interface 100
[DeviceA-Vlan-interface100] ipv6 address 100::100 64
[DeviceA-Vlan-interface100] ipv6 address FE80::80 link-local
# 配置Vlan-interface100接口为M-LAG保留接口。
[DeviceA] m-lag mad exclude interface vlan-interface100
# 创建接口Vlan-interface101，并配置其IPv4和IPv6地址，用于M-LAG设备间三层互通。
[DeviceA] interface vlan-interface 101
[DeviceA-Vlan-interface101] ip address 101.1.1.1 255.255.255.0
[DeviceA-Vlan-interface101] ipv6 address 101::1 64
[DeviceA-Vlan-interface101] quit
# 配置Vlan-interface101接口为M-LAG保留接口。
[DeviceA] m-lag mad exclude interface vlan-interface101
# 配置Router ID为3.3.3.3。
[DeviceA] router id 3.3.3.3
# 配置OSPF，配置VLAN 100、VLAN 101接口使能OSPF，VLAN 100接口在OSPF中静默，实现M-LAG设备间IPv4网络互通。
[DeviceA] ospf 1
[DeviceA-ospf-1] silent-interface vlan-interface 100
[DeviceA-ospf-1] import-route direct
[DeviceA-ospf-1] area 0
[DeviceA-ospf-1-area-0.0.0.0] quit
[DeviceA-ospf-1] quit
[DeviceA] interface vlan-interface 100
[DeviceA-Vlan-interface100] ospf 1 area 0.0.0.0
[DeviceA-Vlan-interface100] quit
[DeviceA] interface vlan-interface 101
[DeviceA-Vlan-interface101] ospf 1 area 0.0.0.0
[DeviceA-Vlan-interface101] quit
# 配置OSPFv3，配置VLAN 100、VLAN 101接口使能OSPFv3，VLAN 100接口在OSPFv3中静默，实现M-LAG设备间IPv6网络互通。
[DeviceA] ospfv3 1
[DeviceA-ospfv3-1] silent-interface vlan-interface 100
[DeviceA-ospfv3-1] import-route direct
[DeviceA-ospfv3-1] area 0
[DeviceA-ospfv3-1-area-0.0.0.0] quit
[DeviceA-ospfv3-1] quit
[DeviceA] interface vlan-interface 100
[DeviceA-Vlan-interface100] ospfv3 1 area 0.0.0.0
[DeviceA-Vlan-interface100] quit
[DeviceA] interface vlan-interface 101
[DeviceA-Vlan-interface101] ospfv3 1 area 0.0.0.0
[DeviceA-Vlan-interface101] quit
# 创建VLAN 32，配置M-LAG上行口HundredGigE1/0/6属于VLAN 32。
[DeviceA] vlan 32
[DeviceA-vlan32] quit
[DeviceA] interface hundredgige 1/0/6
[DeviceA-HundredGigE1/0/6] port link-type trunk
[DeviceA-HundredGigE1/0/6] port trunk permit vlan 32
[DeviceA-HundredGigE1/0/6] undo port trunk permit vlan 1
[DeviceA-HundredGigE1/0/6] quit
# 创建VLAN 32接口，配置VLAN 32接口的IPv4地址和IPv6地址，并使能该接口的OSPF和OSPFv3功能。
[DeviceA] interface vlan-interface 32
[DeviceA-Vlan-interface32] ip address 32.1.1.1 255.255.255.0
[DeviceA-Vlan-interface32] ipv6 address 32::1 64
[DeviceA-Vlan-interface32] ospf 1 area 0
[DeviceA-Vlan-interface32] ospfv3 1 area 0
[DeviceA-Vlan-interface32] quit
# 配置M-LAG系统参数。
<DeviceB> system-view
[DeviceB] m-lag system-mac 0002-0002-0002
[DeviceB] m-lag system-number 2
[DeviceB] m-lag system-priority 123
# 配置Keepalive报文的目的IP地址和源IP地址。
[DeviceB] m-lag keepalive ip destination 21.1.1.1 source 21.1.1.2
# 配置端口HundredGigE1/0/5工作在三层模式，并配置IP地址为Keepalive报文的源IP地址。
[DeviceB] interface hundredgige 1/0/5
[DeviceB-HundredGigE1/0/5] port link-mode route
[DeviceB-HundredGigE1/0/5] ip address 21.1.1.2 255.255.255.0
[DeviceB-HundredGigE1/0/5] ipv6 address 21::2 64
[DeviceB-HundredGigE1/0/5] quit
# 配置Keepalive链路接口为保留接口。
[DeviceB] m-lag mad exclude interface hundredgige 1/0/5
# 创建动态二层聚合接口1。
[DeviceB] interface bridge-aggregation 1
[DeviceB-Bridge-Aggregation1] link-aggregation mode dynamic
[DeviceB-Bridge-Aggregation1] quit
# 分别将端口HundredGigE1/0/3和HundredGigE1/0/4加入到聚合组1中。
[DeviceB] interface hundredgige 1/0/3
[DeviceB-HundredGigE1/0/3] port link-aggregation group 1
[DeviceB-HundredGigE1/0/3] quit
[DeviceB] interface hundredgige 1/0/4
[DeviceB-HundredGigE1/0/4] port link-aggregation group 1
[DeviceB-HundredGigE1/0/4] quit
# 将二层聚合接口1配置为peer-link。
[DeviceB] interface bridge-aggregation 1
[DeviceB-Bridge-Aggregation1] port m-lag peer-link 1
[DeviceB-Bridge-Aggregation1] undo port trunk permit vlan 1
[DeviceB-Bridge-Aggregation1] quit
# 创建动态二层聚合接口3，并配置该接口为M-LAG接口1。
[DeviceB] interface bridge-aggregation 3
[DeviceB-Bridge-Aggregation3] link-aggregation mode dynamic
[DeviceB-Bridge-Aggregation3] port m-lag group 1
[DeviceB-Bridge-Aggregation3] quit
# 将端口HundredGigE1/0/1和HundredGigE1/0/2加入到聚合组3中。
[DeviceB] interface hundredgige 1/0/1
[DeviceB-HundredGigE1/0/1] port link-aggregation group 3
[DeviceB-HundredGigE1/0/1] quit
[DeviceB] interface hundredgige 1/0/2
[DeviceB-HundredGigE1/0/2] port link-aggregation group 3
[DeviceB-HundredGigE1/0/2] quit
# 创建VLAN 100、101。
[DeviceB] vlan 100
[DeviceB-vlan100] quit
[DeviceB] vlan 101
[DeviceB-vlan101] quit
# 配置二层聚合接口3为Trunk端口，并允许VLAN 100的报文通过。
[DeviceB] interface bridge-aggregation 3
[DeviceB-Bridge-Aggregation3] port link-type trunk
[DeviceB-Bridge-Aggregation3] port trunk permit vlan 100
[DeviceB-Bridge-Aggregation3] undo port trunk permit vlan 1
[DeviceB-Bridge-Aggregation3] quit
# 配置接口Vlan-interface100的IPv4地址和MAC地址，使其作为IPv4双活网关，IPv4地址为100.1.1.100，MAC地址为0000-0010-0010。
[DeviceB] interface vlan-interface 100
[DeviceB-Vlan-interface100] ip address 100.1.1.100 255.255.255.0
[DeviceB-Vlan-interface100] mac-address 0000-0010-0010
# 配置接口Vlan-interface100的IPv6地址和Link-local地址，使其作为IPv6双活网关，IPv6地址为100::100，Link-local地址为FE80::80。
[DeviceB] interface vlan-interface 100
[DeviceB-Vlan-interface100] ipv6 address 100::100 64
[DeviceB-Vlan-interface100] ipv6 address FE80::80 link-local
# 配置Vlan-interface100接口为M-LAG保留接口。
[DeviceB] m-lag mad exclude interface vlan-interface100
# 创建接口Vlan-interface101，并配置其IPv4和IPv6地址，用于M-LAG设备间三层互通。
[DeviceB] interface vlan-interface 101
[DeviceB-vlan-interface101] ip address 101.1.1.2 24
[DeviceB-vlan-interface101] ipv6 address 101::2 64
[DeviceB-vlan-interface101] quit
# 配置Vlan-interface101接口为M-LAG保留接口。
[DeviceB] m-lag mad exclude interface vlan-interface101
# 配置Router ID为4.4.4.4。
[DeviceB] router id 4.4.4.4
# 配置OSPF，配置VLAN 100、VLAN 101接口使能OSPF，VLAN 100接口在OSPF中静默，实现M-LAG设备间IPv4网络互通。
[DeviceB] ospf 1
[DeviceB-ospf-1] silent-interface vlan-interface100
[DeviceB-ospf-1] import-route direct
[DeviceB-ospf-1] area 0
[DeviceB-ospf-1-area-0.0.0.0] quit
[DeviceB-ospf-1] quit
[DeviceB] interface vlan-interface 100
[DeviceB-Vlan-interface100] ospf 1 area 0.0.0.0
[DeviceB-Vlan-interface100] quit
[DeviceB] interface vlan-interface 101
[DeviceB-Vlan-interface101] ospf 1 area 0.0.0.0
[DeviceB-Vlan-interface101] quit
# 配置OSPFv3，配置VLAN 100、VLAN 101接口使能OSPFv3，VLAN 100接口在OSPFv3中静默，实现M-LAG设备间IPv6网络互通。
[DeviceB] ospfv3 1
[DeviceB-ospf-1] silent-interface vlan-interface100
[DeviceB-ospfv3-1] import-route direct
[DeviceB-ospfv3-1] area 0
[DeviceB-ospfv3-1-area-0.0.0.0] quit
[DeviceB-ospfv3-1] quit
[DeviceB] interface vlan-interface 100
[DeviceB-vlan-interface100] ospfv3 1 area 0
[DeviceB-vlan-interface100] quit
[DeviceB] interface vlan-interface 101
[DeviceB-vlan-interface101] ospfv3 1 area 0
[DeviceB-vlan-interface101] quit
# 创建VLAN 33，配置M-LAG上行口HundredGigE1/0/6属于VLAN 33。
[DeviceB] vlan 33
[DeviceB-vlan33] quit
[DeviceB] interface hundredgige 1/0/6
[DeviceB-HundredGigE1/0/6] port link-type trunk
[DeviceB-HundredGigE1/0/6] port trunk permit vlan 33
[DeviceB-HundredGigE1/0/6] undo port trunk permit vlan 1
[DeviceB-HundredGigE1/0/6] quit
# 创建VLAN 33接口，配置VLAN 33接口的IPv4地址和IPv6地址，并使能该接口的OSPF和OSPFv3功能。
[DeviceB] interface vlan-interface 33
[DeviceB-Vlan-interface33] ip address 33.1.1.1 255.255.255.0
[DeviceB-Vlan-interface33] ipv6 address 33::1 64
[DeviceB-Vlan-interface33] ospf 1 area 0
[DeviceB-Vlan-interface33] ospfv3 1 area 0
[DeviceB-Vlan-interface33] quit
# 创建VLAN 32，将Device C连接Device A的接口HundredGigE1/0/1加入VLAN 32，并配置VLAN接口32的IPv4地址和IPv6地址。
<DeviceC> system-view
[DeviceC] vlan 32
[DeviceC-vlan32] quit
[DeviceC] interface hundredgige 1/0/1
[DeviceC-HundredGigE1/0/1] port link-type trunk
[DeviceC-HundredGigE1/0/1] port trunk permit vlan 32
[DeviceC-HundredGigE1/0/1] undo port trunk permit vlan 1
[DeviceC-HundredGigE1/0/] quit
[DeviceC] interface vlan-interface 32
[DeviceC-Vlan-interface32] ip address 32.1.1.2 24
[DeviceC-Vlan-interface32] ipv6 address 32::2 64
[DeviceC-Vlan-interface32] quit
# 创建VLAN 33，将Device C连接Device B的接口HundredGigE1/0/2加入VLAN 33，并配置VLAN接口33的IPv4地址和IPv6地址。
[DeviceC] vlan 33
[DeviceC-vlan33] quit
[DeviceC] interface hundredgige 1/0/2
[DeviceC-HundredGigE1/0/2] port link-type trunk
[DeviceC-HundredGigE1/0/2] port trunk permit vlan 33
[DeviceC-HundredGigE1/0/2] undo port trunk permit vlan 1
[DeviceC-HundredGigE1/0/2] quit
[DeviceC] interface vlan-interface 33
[DeviceC-Vlan-interface33] ip address 33.1.1.2 24
[DeviceC-Vlan-interface33] ipv6 address 33::2 64
[DeviceC-Vlan-interface33] quit
# 配置Router ID为5.5.5.5。
[DeviceC] router id 5.5.5.5
# 配置VLAN 32接口和VLAN 33接口使能OSPF功能。
[DeviceC] ospf 1
[DeviceC-ospf-1] import-route direct
[DeviceC-ospf-1] area 0
[DeviceC-ospf-1-area-0.0.0.0] quit
[DeviceC-ospf-1] quit
[DeviceC] interface vlan-interface 32
[DeviceC-Vlan-interface32] ospf 1 area 0
[DeviceC-Vlan-interface32] quit
[DeviceC] interface vlan-interface 33
[DeviceC-Vlan-interface33] ospf 1 area 0
[DeviceC-Vlan-interface33] quit
# 配置VLAN 32接口和VLAN 33接口使能OSPFv3功能。
[DeviceC] ospfv3 1
[DeviceC-ospfv3-1] import-route direct
[DeviceC-ospfv3-1] area 0
[DeviceC-ospfv3-1-area-0.0.0.0] quit
[DeviceC-ospfv3-1] quit
[DeviceC] interface vlan-interface 32
[DeviceC-Vlan-interface32] ospfv3 1 area 0
[DeviceC-Vlan-interface32] quit
[DeviceC] interface vlan-interface 33
[DeviceC-Vlan-interface33] ospfv3 1 area 0
[DeviceC-Vlan-interface33] quit
# 创建VLAN 22，配置与Network1网络连接的接口HundredGigE1/0/3加入VLAN 22，并配置VLAN 22接口的IPv4地址和IPv6地址。
[DeviceC] vlan 22
[DeviceC-vlan22] quit
[DeviceC] interface hundredgige 1/0/3
[DeviceC-HundredGigE1/0/3] port link-type trunk
[DeviceC-HundredGigE1/0/3] port trunk permit vlan 22
[DeviceC-HundredGigE1/0/3] undo port trunk permit vlan 1
[DeviceC-HundredGigE1/0/3] quit
[DeviceC] interface vlan-interface 22
[DeviceC-Vlan-interface22] ip address 22.1.1.1 24
[DeviceC-Vlan-interface22] ipv6 address 22::1 64
[DeviceC-Vlan-interface22] quit
# 创建二层聚合接口3，并配置该接口为动态聚合模式。
<DeviceD> system-view
[DeviceD] interface bridge-aggregation 3
[DeviceD-Bridge-Aggregation3] link-aggregation mode dynamic
[DeviceD-Bridge-Aggregation3] quit
# 将端口HundredGigE1/0/1～HundredGigE1/0/4加入到聚合组3中。
[DeviceD] interface range hundredgige 1/0/1 to hundredgige 1/0/4
[DeviceD-if-range] port link-aggregation group 3
[DeviceD-if-range] quit
# 创建VLAN 100。
[DeviceD] vlan 100
[DeviceD-vlan100] quit
# 配置二层聚合接口3为Trunk端口，并允许VLAN 100的报文通过。
[DeviceD] interface bridge-aggregation 3
[DeviceD-Bridge-Aggregation3] port link-type trunk
[DeviceD-Bridge-Aggregation3] port trunk permit vlan 100
[DeviceD-Bridge-Aggregation3] undo port trunk permit vlan 1
[DeviceD-Bridge-Aggregation3] quit
查看DeviceA和Device B之间M-LAG系统状态，M-LAG正常建立。以DeviceA为例：
# 显示分布式聚合系统的接口摘要信息。
[DeviceA] display m-lag summary
Flags: A -- Aggregate interface down, B -- No peer M-LAG interface configured
C -- Configuration consistency check failed
Peer-link interface: BAGG1
Peer-link interface state (cause): UP
Keepalive link state (cause): UP
M-LAG interface information
M-LAG IF M-LAG group Local state (cause) Peer state Remaining down time(s)
BAGG3 1 UP UP -
# 显示分布式聚合Keepalive报文的信息。
[DeviceA] display m-lag keepalive
Neighbor keepalive link status: Up
Neighbor is alive for: 64765 s 28 ms
Keepalive packet transmission status:
Sent: Successful
Received: Successful
Last received keepalive packet information:
Source IP address: 21.1.1.2
Time: 2021/01/17 17:10:52
Action: Accept
M-LAG keepalive parameters:
Destination IP address: 21.1.1.2
Source IP address: 21.1.1.1
Keepalive UDP port : 6400
Keepalive VPN name : N/A
Keepalive interval : 1000 ms
Keepalive timeout : 5 sec
Keepalive hold time: 3 sec
# 显示分布式聚合系统信息。
<Sysname> display m-lag system
System information
Local system number: 1 Peer system number: 2
Local system MAC: 0002-0002-0002 Peer system MAC: 0002-0002-0002
Local system priority: 123 Peer system priority: 123
Local bridge MAC: 3cd4-3ce1-0200 Peer bridge MAC: 3cd4-437d-0300
Local effective role: Primary Peer effective role: Secondary
Health level: 0
Standalone mode on split: Disabled
In standalone mode: No
System timer information
Timer State Value (s) Remaining time (s)
Auto recovery Disabled - -
Restore delay Disabled 30 -
Consistency-check delay Disabled 15 -
Standalone delay Disabled - -
Role to None delay Disabled 60 -
# 显示分布式聚合系统的接口详细信息。
[DeviceA] display m-lag verbose
Flags: A -- Home_Gateway, B -- Neighbor_Gateway, C -- Other_Gateway,
D -- PeerLink_Activity, E -- DRCP_Timeout, F -- Gateway_Sync,
G -- Port_Sync, H -- Expired
Peer-link interface/Peer-link interface ID: BAGG1/1
State: UP
Cause: -
Local DRCP flags/Peer DRCP flags: ABDFG/ABDFG
Local Selected ports (index): HGE1/0/3 (27), HGE1/0/4 (32)
Peer Selected ports indexes: 125, 130
M-LAG interface/M-LAG group ID: BAGG3/1
Local M-LAG interface state: UP
Peer M-LAG interface state: UP
M-LAG group state: UP
Local M-LAG interface down cause: -
Remaining M-LAG DOWN time: -
Local M-LAG interface LACP MAC: Config=N/A, Effective=0002-0002-0002
Peer M-LAG interface LACP MAC: Config=N/A, Effective=0002-0002-0002
Local M-LAG interface LACP priority: Config=32768, Effective=123
Peer M-LAG interface LACP priority: Config=32768, Effective=123
Local DRCP flags/Peer DRCP flags: ABDFG/ABDFG
Local Selected ports (index): HGE1/0/1 (12), HGE1/0/2 (13)
Peer Selected ports indexes: 56, 57
# 查看Device A上OSPF邻居信息。
[DeviceA] display ospf peer
OSPF Process 1 with Router ID 3.3.3.3
Neighbor Brief Information
Area: 0.0.0.0
Router ID Address Pri Dead-Time State Interface
4.4.4.4 101.1.1.2 1 36 Full/DR Vlan101
5.5.5.5 32.1.1.2 1 38 Full/DR Vlan32
# 查看Device A上OSPFv3邻居信息。
[DeviceA] display ospfv3 peer
OSPFv3 Process 1 with Router ID 3.3.3.3
Area: 0.0.0.0
-------------------------------------------------------------------------
Router ID Pri State Dead-Time InstID Interface
4.4.4.4 1 Full/DR 00:00:36 0 Vlan101
5.5.5.5 1 Full/DR 00:00:35 0 Vlan32
# 查看Device B上OSPF邻居信息。
[DeviceB] display ospf peer
OSPF Process 1 with Router ID 4.4.4.4
Neighbor Brief Information
Area: 0.0.0.0
Router ID Address Pri Dead-Time State Interface
3.3.3.3 101.1.1.1 1 32 Full/BDR Vlan101
5.5.5.5 33.1.1.2 1 33 Full/DR Vlan33
# 查看Device B上OSPFv3邻居信息。
[DeviceB] display ospfv3 peer
OSPFv3 Process 1 with Router ID 4.4.4.4
Area: 0.0.0.0
-------------------------------------------------------------------------
Router ID Pri State Dead-Time InstID Interface
3.3.3.3 1 Full/BDR 00:00:35 0 Vlan101
5.5.5.5 1 Full/DR 00:00:38 0 Vlan33
# 在Device C上查看OSPF邻居信息。
[DeviceC] display ospf peer
OSPF Process 1 with Router ID 5.5.5.5
Neighbor Brief Information
Area: 0.0.0.0
Router ID Address Pri Dead-Time State Interface
3.3.3.3 32.1.1.1 1 32 Full/DR Vlan32
4.4.4.4 33.1.1.1 1 38 Full/DR Vlan33
# 在Device C上查看OSPFv3邻居信息。
[DeviceC] display ospfv3 peer
OSPFv3 Process 1 with Router ID 5.5.5.5
Area: 0.0.0.0
-------------------------------------------------------------------------
Router ID Pri State Dead-Time InstID Interface
3.3.3.3 1 Full/DR 00:00:37 0 Vlan32
4.4.4.4 1 Full/DR 00:00:34 0 Vlan33
Server 1和Server 2可以与Network 1 IPv4、IPv6互通。
断开Device A连接Device C的接口，Server 1和Server 2仍然可以与Network 1通信（流量切换过程中有短暂丢包）。
· Device A：
#
router id 3.3.3.3
#
ospf 1
import-route direct
silent-interface Vlan-interface100
area 0.0.0.0
#
ospfv3 1
import-route direct
silent-interface Vlan-interface100
area 0.0.0.0
#
vlan 1
#
vlan 32
#
vlan 100 to 101
#
interface Bridge-Aggregation1
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 2 to 4094
link-aggregation mode dynamic
port m-lag peer-link 1
#
interface Bridge-Aggregation3
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 100
link-aggregation mode dynamic
port m-lag group 1
#
interface Vlan-interface32
ip address 32.1.1.1 255.255.255.0
ospf 1 area 0.0.0.0
ospfv3 1 area 0.0.0.0
ipv6 address 32::1/64
#
interface Vlan-interface100
ip address 100.1.1.100 255.255.255.0
ospf 1 area 0.0.0.0
ospfv3 1 area 0.0.0.0
mac-address 0000-0010-0010
ipv6 address FE80::80 link-local
ipv6 address 100::100/64
#
interface Vlan-interface101
ip address 101.1.1.1 255.255.255.0
ospf 1 area 0.0.0.0
ospfv3 1 area 0.0.0.0
ipv6 address 101::1/64
#
interface HundredGigE1/0/1
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 100
combo enable fiber
port link-aggregation group 3
#
interface HundredGigE1/0/2
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 100
combo enable fiber
port link-aggregation group 3
#
interface HundredGigE1/0/3
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 2 to 4094
port link-aggregation group 1
#
interface HundredGigE1/0/4
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 2 to 4094
port link-aggregation group 1
#
interface HundredGigE1/0/5
port link-mode route
ip address 21.1.1.1 255.255.255.0
ipv6 address 21::1/64
#
interface HundredGigE1/0/6
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 32
#
m-lag system-mac 0002-0002-0002
m-lag system-number 1
m-lag system-priority 123
m-lag keepalive ip destination 21.1.1.2 source 21.1.1.1
m-lag mad exclude interface HundredGigE1/0/5
m-lag mad exclude interface Vlan-interface100
m-lag mad exclude interface Vlan-interface101
#
· Device B：
#
router id 4.4.4.4
#
ospf 1
import-route direct
silent-interface Vlan-interface100
area 0.0.0.0
#
ospfv3 1
import-route direct
silent-interface Vlan-interface100
area 0.0.0.0
#
vlan 1
#
vlan 33
#
vlan 100 to 101
#
interface Bridge-Aggregation1
port link-type trunk
port trunk permit vlan all
link-aggregation mode dynamic
port m-lag peer-link 1
#
interface Bridge-Aggregation3
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 100
link-aggregation mode dynamic
port m-lag group 1
#
interface Vlan-interface33
ip address 33.1.1.1 255.255.255.0
ospf 1 area 0.0.0.0
ospfv3 1 area 0.0.0.0
ipv6 address 33::1/64
#
interface Vlan-interface100
ip address 100.1.1.100 255.255.255.0
ospf 1 area 0.0.0.0
ospfv3 1 area 0.0.0.0
mac-address 0000-0010-0010
ipv6 address FE80::80 link-local
ipv6 address 100::100/64
#
interface Vlan-interface101
ip address 101.1.1.2 255.255.255.0
ospf 1 area 0.0.0.0
ospfv3 1 area 0.0.0.0
ipv6 address 101::2/64
#
interface HundredGigE1/0/1
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 100
combo enable fiber
port link-aggregation group 3
#
interface HundredGigE1/0/2
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 100
combo enable fiber
port link-aggregation group 3
#
interface HundredGigE1/0/3
port link-mode bridge
port link-type trunk
port trunk permit vlan all
port link-aggregation group 1
#
interface HundredGigE1/0/4
port link-mode bridge
port link-type trunk
port trunk permit vlan all
port link-aggregation group 1
#
interface HundredGigE1/0/5
port link-mode route
ip address 21.1.1.2 255.255.255.0
ipv6 address 21::2/64
#
interface HundredGigE1/0/6
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 33
#
m-lag system-mac 0002-0002-0002
m-lag system-number 2
m-lag system-priority 123
m-lag keepalive ip destination 21.1.1.1 source 21.1.1.2
m-lag mad exclude interface HundredGigE1/0/5
m-lag mad exclude interface Vlan-interface100
m-lag mad exclude interface Vlan-interface101
#
· Device C：
#
router id 5.5.5.5
#
ospf 1
import-route direct
area 0.0.0.0
#
ospfv3 1
import-route direct
area 0.0.0.0
#
vlan 1
#
vlan 22
#
vlan 32 to 33
#
interface Vlan-interface22
ip address 22.1.1.1 255.255.255.0
ipv6 address 22::1/64
#
interface Vlan-interface32
ip address 32.1.1.1 255.255.255.0
ospf 1 area 0.0.0.0
ospfv3 1 area 0.0.0.0
ipv6 address 32::2/64
#
interface Vlan-interface33
ip address 33.1.1.2 255.255.255.0
ospf 1 area 0.0.0.0
ospfv3 1 area 0.0.0.0
ipv6 address 33::2/64
#
interface HundredGigE1/0/1
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 32
#
interface HundredGigE1/0/2
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 33
#
interface HundredGigE1/0/3
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 22
#
· Device D：
#
vlan 1
#
vlan 100
#
interface Bridge-Aggregation3
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 100
link-aggregation mode dynamic
#
interface HundredGigE1/0/1
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 100
port link-aggregation group 3
#
interface HundredGigE1/0/2
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 100
port link-aggregation group 3
#
interface HundredGigE1/0/3
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 100
port link-aggregation group 3
#
interface HundredGigE1/0/4
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 100
port link-aggregation group 3
#
· H3C S12500X-AF系列交换机 二层技术-以太网交换配置指导-R28xx
· H3C S12500X-AF系列交换机 二层技术-以太网交换命令参考-R28xx
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