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07-SR-MPLS典型配置举例
本章节下载： 07-SR-MPLS典型配置举例 (228.88 KB)
本文档介绍SR-MPLS特性的配置举例。
SR采用源路径选择机制，预先在源节点封装好路径所要经过节点分配的SID，当报文经过SR节点时，该节点根据报文的SID对报文进行转发。除源节点外，其它节点无需维护路径状态。SR-MPLS是指在MPLS网络中使用SR、将标签作为SID对报文进行转发。
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SR-MPLS特性。
如图1所示，SR-MPLS网络被LDP网络隔断，为了实现SR-MPLS网络间用户互通，需要完成SR-MPLS和LDP网络间标签的连接，及当Device A通过SRLSP将流量转发给Device E时，需要在Device B和Device D上完成SR-MPLS和LDP标签的连接。
图1 SR-MPLS over LDP网络互通组网图
|
设备 |
接口 |
IP地址 |
设备 |
接口 |
IP地址 |
|
Device A |
Loop1 |
1.1.1.1/32 |
Device B |
Loop1 |
2.2.2.2/32 |
|
|
Vlan-Int100 |
10.0.0.1/24 |
|
Vlan-Int100 |
10.0.0.2/24 |
|
Device C |
Loop1 |
3.3.3.3/32 |
|
Vlan-Int200 |
11.0.0.1/24 |
|
|
Vlan-Int100 |
12.0.0.1/24 |
Device D |
Loop1 |
4.4.4.4/32 |
|
|
Vlan-Int200 |
11.0.0.2/24 |
|
Vlan-Int100 |
12.0.0.2/24 |
|
Device E |
Loop1 |
5.5.5.5/32 |
|
Vlan-Int200 |
13.0.0.1/24 |
|
|
Vlan-Int200 |
13.0.0.2/24 |
|
|
|
· 设备Device A、Device B、Device C、Device D和Device E运行IS-IS实现互通。
· 设备Device B、Device C、Device D均配置LDP；Device A、Device B、Device D和Device E配置IS-IS SR功能。
|
产品 |
软件版本 |
|
S6805系列 |
不支持 |
|
S6825系列 |
不支持 |
|
S6850系列 |
不支持 |
|
S9850系列 |
不支持 |
|
S9820-64H |
不支持 |
|
S9820-8C |
不支持 |
|
S6800系列 |
Release 6710Pxx版本，Release 6715及以上版本 |
|
S6860系列 |
Release 6710Pxx版本，Release 6715及以上版本 |
|
S6826系列 |
不支持 |
|
S9826系列 |
不支持 |
# 按照图1配置各接口的IP地址和掩码，包括LoopBack接口，具体配置过程略。
# 配置IS-IS协议实现网络层互通，开销值类型为wide。
<DeviceA> system-view
[DeviceA] isis 1
[DeviceA-isis-1] network-entity 00.0000.0000.0001.00
[DeviceA-isis-1] cost-style wide
[DeviceA-isis-1] quit
[DeviceA] interface vlan-interface 100
[DeviceA-Vlan-interface100] isis enable 1
[DeviceA-Vlan-interface100] quit
[DeviceA] interface loopback 1
[DeviceA-LoopBack1] isis enable 1
[DeviceA-LoopBack1] quit
# 配置节点的MPLS LSR ID。
[DeviceA] mpls lsr-id 1.1.1.1
# 开启IS-IS SR功能。
[DeviceA] isis 1
[DeviceA-isis-1] address-family ipv4
[DeviceA-isis-1-ipv4] segment-routing mpls
[DeviceA-isis-1-ipv4] quit
# 配置IS-IS SR的SRGB。
[DeviceA-isis-1] segment-routing global-block 16000 16999
[DeviceA-isis-1] quit
# 配置前缀SID索引。
[DeviceA] interface loopback 1
[DeviceA-LoopBack1] isis prefix-sid index 10
[DeviceA-LoopBack1] quit
# 按照图1配置各接口的IP地址和掩码，包括LoopBack接口，具体配置过程略。
# 配置IS-IS协议实现网络层互通，开销值类型为wide。
<DeviceB> system-view
[DeviceB] isis 1
[DeviceB-isis-1] network-entity 00.0000.0000.0002.00
[DeviceB-isis-1] cost-style wide
[DeviceB-isis-1] quit
[DeviceB] interface vlan-interface 100
[DeviceB-Vlan-interface100] isis enable 1
[DeviceB-Vlan-interface100] quit
[DeviceB] interface vlan-interface 200
[DeviceB-Vlan-interface200] isis enable 1
[DeviceB-Vlan-interface200] quit
[DeviceB] interface loopback 1
[DeviceB-LoopBack1] isis enable 1
[DeviceB-LoopBack1] quit
# 配置节点的MPLS LSR ID。
[DeviceB] mpls lsr-id 2.2.2.2
# 配置节点的LDP功能。
[DeviceB] mpls ldp
[DeviceB-ldp] quit
[DeviceB] interface vlan-interface 200
[DeviceB-Vlan-interface200] mpls enable
[DeviceB-Vlan-interface200] mpls ldp enable
[DeviceB-Vlan-interface200] quit
# 开启IS-IS SR功能。
[DeviceB] isis 1
[DeviceB-isis-1] address-family ipv4
[DeviceB-isis-1-ipv4] segment-routing mpls
[DeviceB-isis-1-ipv4] quit
# 配置IS-IS SR的SRGB。
[DeviceB-isis-1] segment-routing global-block 17000 17999
[DeviceB-isis-1] quit
# 配置前缀SID索引。
[DeviceB] interface loopback 1
[DeviceB-LoopBack1] isis prefix-sid index 20
[DeviceB-LoopBack1] quit
# 按照图1配置各接口的IP地址和掩码，包括LoopBack接口，具体配置过程略。
# 配置IS-IS协议实现网络层互通，开销值类型为wide。
<DeviceC> system-view
[DeviceC] isis 1
[DeviceC-isis-1] network-entity 00.0000.0000.0003.00
[DeviceC-isis-1] cost-style wide
[DeviceC-isis-1] quit
[DeviceC] interface vlan-interface 100
[DeviceC-Vlan-interface100] isis enable 1
[DeviceC-Vlan-interface100] quit
[DeviceC] interface vlan-interface 200
[DeviceC-Vlan-interface200] isis enable 1
[DeviceC-Vlan-interface200] quit
[DeviceC] interface loopback 1
[DeviceC-LoopBack1] isis enable 1
[DeviceC-LoopBack1] quit
# 配置节点的MPLS LSR ID。
[DeviceC] mpls lsr-id 3.3.3.3
# 配置节点的LDP功能。
[DeviceC] mpls ldp
[DeviceC-ldp] quit
[DeviceC] interface vlan-interface 100
[DeviceC-Vlan-interface100] mpls enable
[DeviceC-Vlan-interface100] mpls ldp enable
[DeviceC-Vlan-interface100] quit
[DeviceC] interface vlan-interface 200
[DeviceC-Vlan-interface200] mpls enable
[DeviceC-Vlan-interface200] mpls ldp enable
[DeviceC-Vlan-interface200] quit
# 按照图1配置各接口的IP地址和掩码，包括LoopBack接口，具体配置过程略。
# 配置IS-IS协议实现网络层互通，开销值类型为wide。
<DeviceD> system-view
[DeviceD] isis 1
[DeviceD-isis-1] network-entity 00.0000.0000.0004.00
[DeviceD-isis-1] cost-style wide
[DeviceD-isis-1] quit
[DeviceD] interface vlan-interface 100
[DeviceD-Vlan-interface100] isis enable 1
[DeviceD-Vlan-interface100] quit
[DeviceD] interface vlan-interface 200
[DeviceD-Vlan-interface200] isis enable 1
[DeviceD-Vlan-interface200] quit
[DeviceD] interface loopback 1
[DeviceD-LoopBack1] isis enable 1
[DeviceD-LoopBack1] quit
# 配置节点的MPLS LSR ID。
[DeviceD] mpls lsr-id 4.4.4.4
# 配置节点的LDP功能。
[DeviceD] mpls ldp
[DeviceD-ldp] quit
[DeviceD] interface vlan-interface 100
[DeviceD-Vlan-interface1001] mpls enable
[DeviceD-Vlan-interface100] mpls ldp enable
[DeviceD-Vlan-interface100] quit
# 开启IS-IS SR功能。
[DeviceD] isis 1
[DeviceD-isis-1] address-family ipv4
[DeviceD-isis-1-ipv4] segment-routing mpls
[DeviceD-isis-1-ipv4] quit
# 配置IS-IS SR的SRGB。
[DeviceD-isis-1] segment-routing global-block 18000 18999
[DeviceD-isis-1] quit
# 配置前缀SID索引。
[DeviceD] interface loopback 1
[DeviceD-LoopBack1] isis prefix-sid index 40
[DeviceD-LoopBack1] quit
# 按照图1配置各接口的IP地址和掩码，包括LoopBack接口，具体配置过程略。
# 配置IS-IS协议实现网络层互通，开销值类型为wide。
<DeviceE> system-view
[DeviceE] isis 1
[DeviceE-isis-1] network-entity 00.0000.0000.0005.00
[DeviceE-isis-1] cost-style wide
[DeviceE-isis-1] quit
[DeviceE] interface vlan-interface 200
[DeviceE-Vlan-interface200] isis enable 1
[DeviceE-Vlan-interface200] quit
[DeviceE] interface loopback 1
[DeviceE-LoopBack1] isis enable 1
[DeviceE-LoopBack1] quit
# 配置节点的MPLS LSR ID。
[DeviceE] mpls lsr-id 5.5.5.5
# 开启IS-IS SR功能。
[DeviceE] isis 1
[DeviceE-isis-1] address-family ipv4
[DeviceE-isis-1-ipv4] segment-routing mpls
[DeviceE-isis-1-ipv4] quit
# 配置IS-IS SR的SRGB。
[DeviceE-isis-1] segment-routing global-block 19000 19999
[DeviceE-isis-1] quit
# 配置前缀SID索引。
[DeviceE] interface loopback 1
[DeviceE-LoopBack1] isis prefix-sid index 50
[DeviceE-LoopBack1] quit
[DeviceB] display mpls ldp lsp
Status Flags: * - stale, L - liberal, B - backup, N/A - unavailable
FECs: 5 Ingress: 3 Transit: 3 Egress: 2
FEC In/Out Label Nexthop OutInterface
1.1.1.1/32 24116/-
-/24117(L)
2.2.2.2/32 3/-
-/24120(L)
3.3.3.3/32 -/3 11.0.0.2 Vlan200
24121/3 11.0.0.2 Vlan200
4.4.4.4/32 -/24119 11.0.0.2 Vlan200
24118/24119 11.0.0.2 Vlan200
5.5.5.5/32 -/24118 11.0.0.2 Vlan200
24117/24118 11.0.0.2 Vlan200
# 在Device B上查看IS-IS SR到达Device D和Device E的出标签关联上了LDP标签。
[DeviceB] display mpls lsp protocol isis
FEC Proto In/Out Label Interface/Out NHLFE
1.1.1.1/32 ISIS 17010/3 Vlan100
1.1.1.1/32 ISIS -/3 Vlan100
2.2.2.2/32 ISIS 17020/- -
4.4.4.4/32 ISIS 17040/24119 Vlan200
4.4.4.4/32 ISIS -/24119 Vlan200
5.5.5.5/32 ISIS 17050/24118 Vlan200
5.5.5.5/32 ISIS -/24118 Vlan200
· Device A：
#
isis 1
cost-style wide
segment-routing global-block 16000 16999
network-entity 00.0000.0000.0001.00
#
address-family ipv4 unicast
segment-routing mpls
#
mpls lsr-id 1.1.1.1
#
vlan 1
#
vlan 100
#
interface LoopBack1
ip address 1.1.1.1 255.255.255.255
isis enable 1
isis prefix-sid index 10
#
interface Vlan-interface100
ip address 10.0.0.1 255.255.255.0
isis enable 1
#
interface GigabitEthernet1/0/1
port link-mode bridge
port access vlan 100
combo enable fiber
#
· Device B：
#
isis 1
cost-style wide
segment-routing global-block 17000 17999
network-entity 00.0000.0000.0002.00
#
address-family ipv4 unicast
segment-routing mpls
#
mpls lsr-id 2.2.2.2
#
vlan 1
#
vlan 100
#
vlan 200
#
mpls ldp
#
interface LoopBack1
ip address 2.2.2.2 255.255.255.255
isis enable 1
isis prefix-sid index 20
#
interface Vlan-interface100
ip address 10.0.0.2 255.255.255.0
isis enable 1
#
interface Vlan-interface200
ip address 11.0.0.1 255.255.255.0
isis enable 1
mpls enable
mpls ldp enable
#
interface GigabitEthernet1/0/1
port link-mode bridge
port access vlan 100
combo enable fiber
#
interface GigabitEthernet1/0/2
port link-mode bridge
port access vlan 200
combo enable fiber
#
· Device C：
#
isis 1
cost-style wide
network-entity 00.0000.0000.0003.00
#
mpls lsr-id 3.3.3.3
#
vlan 1
#
vlan 100
#
vlan 200
#
mpls ldp
#
interface LoopBack1
ip address 3.3.3.3 255.255.255.255
isis enable 1
#
interface Vlan-interface100
ip address 12.0.0.1 255.255.255.0
isis enable 1
mpls enable
mpls ldp enable
#
interface Vlan-interface200
ip address 11.0.0.2 255.255.255.0
isis enable 1
mpls enable
mpls ldp enable
#
interface GigabitEthernet1/0/1
port link-mode bridge
port access vlan 200
combo enable fiber
#
interface GigabitEthernet1/0/2
port link-mode bridge
port access vlan 100
combo enable fiber
#
· Device D：
#
isis 1
cost-style wide
segment-routing global-block 18000 18999
network-entity 00.0000.0000.0004.00
#
address-family ipv4 unicast
segment-routing mpls
#
mpls lsr-id 4.4.4.4
#
vlan 1
#
vlan 100
#
vlan 200
#
mpls ldp
#
interface LoopBack1
ip address 4.4.4.4 255.255.255.255
isis enable 1
isis prefix-sid index 40
#
interface Vlan-interface100
ip address 12.0.0.2 255.255.255.0
isis enable 1
mpls enable
mpls ldp enable
#
interface Vlan-interface200
ip address 13.0.0.1 255.255.255.0
isis enable 1
#
interface GigabitEthernet1/0/1
port link-mode bridge
port access vlan 100
combo enable fiber
#
interface GigabitEthernet1/0/2
port link-mode bridge
port access vlan 200
combo enable fiber
#
· Device E：
#
isis 1
cost-style wide
segment-routing global-block 19000 19999
network-entity 00.0000.0000.0005.00
#
address-family ipv4 unicast
segment-routing mpls
#
mpls lsr-id 5.5.5.5
#
vlan 1
#
vlan 200
#
interface LoopBack1
ip address 5.5.5.5 255.255.255.255
isis enable 1
isis prefix-sid index 50
#
interface Vlan-interface200
ip address 13.0.0.2 255.255.255.0
isis enable 1
#
interface GigabitEthernet1/0/1
port link-mode bridge
port access vlan 200
combo enable fiber
#
请参考对应产品和版本的如下手册：
· MPLS配置指导
· MPLS命令参考
不同款型规格的资料略有差异, 详细信息请向具体销售和400咨询。H3C保留在没有任何通知或提示的情况下对资料内容进行修改的权利!
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