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05-H3C_Smart_Link典型配置举例
本章节下载： 05-H3C_Smart_Link典型配置举例 (353.90 KB)
H3C Smart Link配置举例
资料版本：6W100-20201031
产品版本：Release 7595
|
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本文档介绍了Smart Link配置举例。
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Smart Link、Monitor Link和IRF特性。
请勿将一个端口同时加入聚合组和Smart Link组，否则该端口在Smart Link组中将不会生效，也无法使用display smart-link group命令查看到。
如图1所示，某企业财务部和市场部分别使用VLAN 10和VLAN 11，出于可靠性考虑，接入设备Device A提供两条链路双上行到汇聚设备Device D。现要求如下：
· 通过配置Smart Link来实现链路备份和负载分担。财务部优先使用Device A—>Device B路径转发数据流量，市场部优先使用Device A—>Device C路径转发数据流量。
· 当Device A到Device B、Device C的两条上行链路都正常时，财务部和市场部的数据流量分别通过不同路径转发；当其中一条链路出现故障时，Smart Link功能会将故障链路上的流量快速切换到另一条链路上；当链路故障恢复时，Smart Link功能又会将数据流量及时切换回原来的转发路径。
图1 Smart Link组配置组网图
|
设备 |
接口 |
VLAN |
设备 |
接口 |
VLAN |
|
Device A |
HGE3/0/1 |
10、11 |
Device C |
HGE3/0/1 |
10、11 |
|
|
HGE3/0/2 |
10、11 |
|
HGE3/0/2 |
10、11 |
|
|
HGE3/0/3 |
10 |
Device D |
HGE3/0/1 |
10、11 |
|
|
HGE3/0/4 |
11 |
|
HGE3/0/2 |
10、11 |
|
Device B |
HGE3/0/1 |
10、11 |
|
HGE3/0/3 |
10、11 |
|
|
HGE3/0/2 |
10、11 |
|
|
|
为了实现流量在两条上行链路上的负载分担，需在Device A创建两个Smart Link组，不同Smart Link组包含相同的成员端口，但同一端口在不同Smart Link组内角色不同，且财务部和市场部使用的VLAN分别为这两个Smart Link组的保护VLAN。
为了实现链路故障恢复时，财务部和市场部的数据流量仍能切换回各自原来的路径转发，需要为两个Smart Link组都配置角色抢占模式。
为了避免当Smart Link组中的主从链路切换时，由于上游设备上的MAC地址转发表项和ARP/ND表项没有及时更新，而导致下行数据流量发生中断，需要在Device A上配置发送Flush报文功能，处于从Device A到Device D主、从链路上的端口都需要使能接收Flush报文功能。
· 如果欲配置某端口为Smart Link组的成员端口（主端口或从端口），请先手工关闭该端口，并待Smart Link组配置完成后再开启该端口，以避免形成环路，导致广播风暴。
· 在配置Smart Link组的成员端口之前，请确认端口未启用STP或者RRPP功能。
· 上游设备上配置的接收处理Flush报文的控制VLAN和在Smart Link设备上配置的发送控制VLAN需要相同。
· 不同的Smart Link组需要配置不同的控制VLAN。Smart Link组的控制VLAN应同时为该Smart Link组的保护VLAN，且不要将已配置为控制VLAN的VLAN删除，否则会影响Flush报文的发送。
# 配置端口HundredGigE 3/0/1、HundredGigE 3/0/2端口为Trunk口，允许VLAN 10、VLAN 11流量通过，并关闭STP。
<DeviceA> system-view
[DeviceA] vlan 10 to 11
[DeviceA] interface hundredgige 3/0/1
[DeviceA-HundredGigE3/0/1] port link-type trunk
[DeviceA-HundredGigE3/0/1] port trunk permit vlan 10 11
[DeviceA-HundredGigE3/0/1] undo port trunk permit vlan 1
[DeviceA-HundredGigE3/0/1] undo stp enable
[DeviceA-HundredGigE3/0/1] shutdown
[DeviceA-HundredGigE3/0/1] quit
[DeviceA] interface hundredgige 3/0/2
[DeviceA-HundredGigE3/0/2] port link-type trunk
[DeviceA-HundredGigE3/0/2] port trunk permit vlan 10 11
[DeviceA-HundredGigE3/0/2] undo port trunk permit vlan 1
[DeviceA-HundredGigE3/0/2] undo stp enable
[DeviceA-HundredGigE3/0/2] shutdown
[DeviceA-HundredGigE3/0/2] quit
# 配置端口HundredGigE 3/0/3、HundredGigE 3/0/4为Access口，分别允许VLAN 10和VLAN 11流量通过。
[DeviceA] interface hundredgige 3/0/3
[DeviceA-HundredGigE3/0/3] port access vlan 10
[DeviceA-HundredGigE3/0/3] undo shutdown
[DeviceA-HundredGigE3/0/3] quit
[DeviceA] interface hundredgige 3/0/4
[DeviceA-HundredGigE3/0/4] port access vlan 11
[DeviceA-HundredGigE3/0/4] undo shutdown
[DeviceA-HundredGigE3/0/4] quit
# 配置实例1绑定VLAN 10，实例2绑定VLAN 11。
[DeviceA] stp region-configuration
[DeviceA-mst-region] instance 1 vlan 10
[DeviceA-mst-region] instance 2 vlan 11
[DeviceA-mst-region] active region-configuration
[DeviceA-mst-region] quit
# 创建Smart Link组1，并配置保护MST 1所绑定的VLAN 10。
[DeviceA] smart-link group 1
[DeviceA-smlk-group1] protected-vlan reference-instance 1
# 配置端口HundredGigE 3/0/1为主端口，HundredGigE 3/0/2为从端口。
[DeviceA-smlk-group1] port hundredgige 3/0/1 primary
[DeviceA-smlk-group1] port hundredgige 3/0/2 secondary
# 使能发送Flush报文。
[DeviceA-smlk-group1] flush enable control-vlan 10
# 配置抢占模式，配置延时抢占时间为10秒。
[DeviceA-smlk-group1] preemption mode role
[DeviceA-smlk-group1] preemption delay 10
[DeviceA-smlk-group1] quit
# 创建Smart Link组2，并配置保护MST 2所绑定的VLAN 11。
[DeviceA] smart-link group 2
[DeviceA-smlk-group2] protected-vlan reference-instance 2
# 配置端口HundredGigE 3/0/2为主端口，HundredGigE 3/0/1为从端口。
[DeviceA-smlk-group2] port HundredGigE 3/0/2 primary
[DeviceA-smlk-group2] port HundredGigE 3/0/1 secondary
# 使能发送Flush报文。
[DeviceA-smlk-group2] flush enable control-vlan 11
# 配置抢占模式，配置默认的延时抢占时间为10秒。
[DeviceA-smlk-group2] preemption mode role
[DeviceA-smlk-group2] preemption delay 10
[DeviceA-smlk-group2] quit
# 开启端口。
[DeviceA] interface HundredGigE 3/0/1
[DeviceA-HundredGigE3/0/1] undo shutdown
[DeviceA-HundredGigE3/0/1] quit
[DeviceA] interface HundredGigE 3/0/2
[DeviceA-HundredGigE3/0/2] undo shutdown
[DeviceA-HundredGigE3/0/2] quit
# 配置端口HundredGigE 3/0/1、HundredGigE 3/0/2为Trunk口，允许VLAN 10、VLAN 11流量通过，并使能Flush报文接收。
<DeviceB> system-view
[DeviceB] vlan 10 to 11
[DeviceB] interface HundredGigE 3/0/1
[DeviceB-HundredGigE3/0/1] port link-type trunk
[DeviceB-HundredGigE3/0/1] port trunk permit vlan 10 11
[DeviceB-HundredGigE3/0/1] undo port trunk permit vlan 1
[DeviceB-HundredGigE3/0/1] smart-link flush enable control-vlan 10 11
[DeviceB-HundredGigE3/0/1] undo shutdown
[DeviceB-HundredGigE3/0/1] quit
[DeviceB] interface HundredGigE 3/0/2
[DeviceB-HundredGigE3/0/2] port link-type trunk
[DeviceB-HundredGigE3/0/2] port trunk permit vlan 10 11
[DeviceB-HundredGigE3/0/2] undo port trunk permit vlan 1
[DeviceB-HundredGigE3/0/2] smart-link flush enable control-vlan 10 11
[DeviceB-HundredGigE3/0/2] undo shutdown
[DeviceB-HundredGigE3/0/2] quit
# 配置端口HundredGigE 3/0/1、HundredGigE 3/0/2为Trunk口，允许VLAN 10、VLAN 11流量通过，并使能Flush报文接收。
<DeviceC> system-view
[DeviceC] vlan 10 to 11
[DeviceC] interface HundredGigE 3/0/1
[DeviceC-HundredGigE3/0/1] port link-type trunk
[DeviceC-HundredGigE3/0/1] port trunk permit vlan 10 11
[DeviceC-HundredGigE3/0/1] undo port trunk permit vlan 1
[DeviceC-HundredGigE3/0/1] smart-link flush enable control-vlan 10 11
[DeviceC-HundredGigE3/0/1] undo shutdown
[DeviceC-HundredGigE3/0/1] quit
[DeviceC] interface HundredGigE 3/0/2
[DeviceC-HundredGigE3/0/2] port link-type trunk
[DeviceC-HundredGigE3/0/2] port trunk permit vlan 10 11
[DeviceC-HundredGigE3/0/2] undo port trunk permit vlan 1
[DeviceC-HundredGigE3/0/2] smart-link flush enable control-vlan 10 11
[DeviceC-HundredGigE3/0/2] undo shutdown
[DeviceC-HundredGigE3/0/2] quit
# 配置端口HundredGigE 3/0/1、HundredGigE 3/0/2、HundredGigE 3/0/3为Trunk口，允许VLAN 10、VLAN 11的流量通过；HundredGigE 3/0/1、HundredGigE 3/0/2使能Flush报文接收。
<DeviceD> system-view
[DeviceD] vlan 10 to 11
[DeviceD] interface HundredGigE 3/0/1
[DeviceD-HundredGigE3/0/1] port link-type trunk
[DeviceD-HundredGigE3/0/1] port trunk permit vlan 10 11
[DeviceD-HundredGigE3/0/1] undo port trunk permit vlan 1
[DeviceD-HundredGigE3/0/1] smart-link flush enable control-vlan 10 11
[DeviceD-HundredGigE3/0/1] undo shutdown
[DeviceD-HundredGigE3/0/1] quit
[DeviceD] interface HundredGigE 3/0/2
[DeviceD-HundredGigE3/0/2] port link-type trunk
[DeviceD-HundredGigE3/0/2] port trunk permit vlan 10 11
[DeviceD-HundredGigE3/0/2] undo port trunk permit vlan 1
[DeviceD-HundredGigE3/0/2] smart-link flush enable control-vlan 10 11
[DeviceD-HundredGigE3/0/2] undo shutdown
[DeviceD-HundredGigE3/0/2] quit
[DeviceD] interface HundredGigE 3/0/3
[DeviceD-HundredGigE3/0/3] port link-type trunk
[DeviceD-HundredGigE3/0/3] port trunk permit vlan 10 11
[DeviceD-HundredGigE3/0/3] undo port trunk permit vlan 1
[DeviceD-HundredGigE3/0/3] undo shutdown
[DeviceD-HundredGigE3/0/3] quit
(1) 当Device A正常工作时，查看Smart Link的配置
# 查看Device A上的Smart Link配置。
[DeviceA] display smart-link group all
Smart link group 1 information:
Device ID : 0000-fc00-2500
Preemption mode : ROLE
Preemption delay: 10(s)
Control VLAN : 10
Protected VLAN : Reference Instance 1
Member Role State Flush-count Last-flush-time
-----------------------------------------------------------------------------
HGE3/0/1 PRIMARY ACTIVE 0 NA
HGE3/0/2 SECONDARY STANDBY 2 16:22:40 2019/12/29
Smart link group 2 information:
Device ID : 0000-fc00-2500
Preemption mode : ROLE
Preemption delay: 10(s)
Control VLAN : 11
Protected VLAN : Reference Instance 2
Member Role State Flush-count Last-flush-time
-----------------------------------------------------------------------------
HGE3/0/2 PRIMARY ACTIVE 2 16:22:40 2019/12/29
HGE3/0/1 SECONDARY STANDBY 0 NA
上述信息表示，在Smart Link组1中，Device A的HundredGigE 3/0/1是主端口，负责转发VLAN实例1的流量；在Smart Link组2中，Device A的HundredGigE 3/0/2是主端口，负责转发VLAN实例2的流量。
(2) 当Device A的HundredGigE 3/0/1接口Down时，查看Smart Link的配置
# 查看Device A上的Smart Link配置。
[DeviceA] display smart-link group all
Smart link group 1 information:
Device ID : 0000-fc00-2500
Preemption mode : ROLE
Preemption delay: 10(s)
Control VLAN : 10
Protected VLAN : Reference Instance 1
Member Role State Flush-count Last-flush-time
-----------------------------------------------------------------------------
HGE3/0/1 PRIMARY DOWN 0 NA
HGE3/0/2 SECONDARY ACTIVE 3 17:43:06 2019/12/29
Smart link group 2 information:
Device ID : 0000-fc00-2500
Preemption mode : ROLE
Preemption delay: 10(s)
Control VLAN : 11
Protected VLAN : Reference Instance 2
Member Role State Flush-count Last-flush-time
-----------------------------------------------------------------------------
HGE3/0/2 PRIMARY ACTIVE 2 16:22:40 2019/12/29
HGE3/0/1 SECONDARY DOWN 0 NA
上述信息表示，HundredGigE 3/0/1接口Down时，在Smart Link组1中，Device A的HundredGigE 3/0/2成为主端口，负责转发VLAN实例1的流量；在Smart Link组2中，Device A的HundredGigE 3/0/2仍然是主端口，负责转发VLAN实例2的流量。
# 通过使用display smart-link flush命令可以查看Device B上收到的Flush报文信息。
[DeviceB] display smart-link flush
Received flush packets : 1
Receiving interface of the last flush packet : HundredGigE3/0/2
Receiving time of the last flush packet : 07:57:22 2019/10/23
Device ID of the last flush packet : 0000-fc00-2500
Control VLAN of the last flush packet : 10
· Device A：
#
vlan 1
#
vlan 10 to 11
#
stp region-configuration
instance 1 vlan 10
instance 2 vlan 11
active region-configuration
#
smart-link group 1
preemption mode role
preemption delay 10
flush enable control-vlan 10
protected-vlan reference-instance 1
smart-link group 2
preemption mode role
preemption delay 10
flush enable control-vlan 11
protected-vlan reference-instance 2
#
interface HundredGigE3/0/1
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 10 to 11
undo stp enable
port smart-link group 1 primary
port smart-link group 2 secondary
#
interface HundredGigE3/0/2
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 10 to 11
undo stp enable
port smart-link group 1 secondary
port smart-link group 2 primary
#
· Device B：
#
vlan 1
#
vlan 10 to 11
#
monitor-link group 1
#
interface HundredGigE3/0/1
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 10 to 11
smart-link flush enable control-vlan 10 to 11
port monitor-link group 1 downlink
#
interface HundredGigE3/0/2
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 10 to 11
smart-link flush enable control-vlan 10 to 11
port monitor-link group 1 uplink
#
· Device C：
#
vlan 1
#
vlan 10 to 11
#
monitor-link group 1
#
interface HundredGigE3/0/1
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 10 to 11
smart-link flush enable control-vlan 10 to 11
port monitor-link group 1 downlink
#
interface HundredGigE3/0/2
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 10 to 11
smart-link flush enable control-vlan 10 to 11
port monitor-link group 1 uplink
#
· Device D：
#
vlan 1
#
vlan 10 to 11
#
interface HundredGigE3/0/1
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 10 to 11
smart-link flush enable control-vlan 10 to 11
#
interface HundredGigE3/0/2
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 10 to 11
smart-link flush enable control-vlan 10 to 11
#
interface HundredGigE3/0/3
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 10 to 11
#
如图2所示，区域A和区域B分别使用VLAN 10和VLAN 11，出于可靠性考虑，接入设备Device A和Device B都提供两条链路分别双上行到汇聚设备Device C和Device D。现要求如下：
· Device A和Device B设备通过配置Smart Link来实现链路备份。
· 当Device A到Device C和Device D的两条上行链路都正常时，区域A的数据流量优先通过Device A—>Device C的路径转发。当该链路出现故障时，Smart Link功能会将故障链路上的流量快速切换到Device A—>Device D的链路上。当链路故障恢复时，Smart Link功能又会将数据流量及时切换回原来的转发路径。
· 当Device B到Device C和Device D的两条上行链路都正常时，区域B的数据流量优先通过Device B—>Device D的路径转发。当该链路出现故障时，Smart Link功能会将故障链路上的流量快速切换到Device B—>Device C的链路上。当链路故障恢复时，Smart Link功能又会将数据流量及时切换回原来的转发路径。
· 通过配置Smart Link和Monitor Link联动，确保Device C和Device D的上行接口出现故障时能够快速感知并将下行接口的状态变为Down，触发Smart Link进行链路切换，从而最大可能地避免区域A和区域B与外部通信中断。
图2 Smart Link+Monitor Link组配置组网图
|
设备 |
接口 |
VLAN |
设备 |
接口 |
VLAN |
|
Device A |
HGE3/0/1 |
10 |
Device D |
HGE3/0/1 |
11 |
|
|
HGE3/0/2 |
10 |
|
HGE3/0/2 |
10、11 |
|
|
HGE3/0/3 |
10 |
|
HGE3/0/3 |
10 |
|
Device B |
HGE3/0/1 |
11 |
Device E |
HGE3/0/1 |
10、11 |
|
|
HGE3/0/2 |
11 |
|
HGE3/0/2 |
10、11 |
|
|
HGE3/0/3 |
11 |
|
HGE3/0/3 |
10、11 |
|
Device C |
HGE3/0/1 |
10 |
|
|
|
|
|
HGE3/0/2 |
10、11 |
|
|
|
|
|
HGE3/0/3 |
11 |
|
|
|
为了实现Device A和Device B的链路备份，需在Device A和Device B上分别创建一个Smart Link组，区域A和区域B的VLAN分别为这两个Smart Link组的保护VLAN。
为了实现链路故障恢复时，区域A和区域B的数据流量仍能切换回各自原来的路径转发，需要为两个Smart Link组都配置角色抢占模式。
为了避免当Smart Link组中的主从链路切换时，由于上游设备上的MAC地址转发表项和ARP/ND表项没有及时更新，而导致下行数据流量发生中断，需要在Device A和Device B上配置发送Flush报文功能，Device C和Device D的下行端口都需要使能接收Flush报文功能。
· 如果欲配置某端口为Smart Link组的成员端口（主端口或从端口），请先手工关闭该端口，并待Smart Link组配置完成后再开启该端口，以避免形成环路，导致广播风暴。
· 在配置Smart Link组的成员端口之前，请确认端口未启用STP或者RRPP功能。
· 上游设备上配置的接收处理Flush报文的控制VLAN和在Smart Link设备上配置的发送控制VLAN需要相同。
· 不同的Smart Link组需要配置不同的控制VLAN。Smart Link组的控制VLAN应同时为该Smart Link组的保护VLAN，且不要将已配置为控制VLAN的VLAN删除，否则会影响Flush报文的发送。
· 一个接口只能属于一个Monitor Link组。
· 请勿通过shutdown或undo shutdown命令手动开启或关闭接口来改变Monitor Link组中下行接口的状态。
# 配置端口HundredGigE 3/0/1、HundredGigE 3/0/2端口为Trunk口，允许VLAN 10流量通过，并关闭STP。
<DeviceA> system-view
[DeviceA] vlan 10 to 11
[DeviceA] interface hundredgige 3/0/1
[DeviceA-HundredGigE3/0/1] port link-type trunk
[DeviceA-HundredGigE3/0/1] port trunk permit vlan 10
[DeviceA-HundredGigE3/0/1] undo port trunk permit vlan 1
[DeviceA-HundredGigE3/0/1] undo stp enable
[DeviceA-HundredGigE3/0/1] shutdown
[DeviceA-HundredGigE3/0/1] quit
[DeviceA] interface hundredgige 3/0/2
[DeviceA-HundredGigE3/0/2] port link-type trunk
[DeviceA-HundredGigE3/0/2] port trunk permit vlan 10
[DeviceA-HundredGigE3/0/2] undo port trunk permit vlan 1
[DeviceA-HundredGigE3/0/2] undo stp enable
[DeviceA-HundredGigE3/0/2] shutdown
[DeviceA-HundredGigE3/0/2] quit
# 配置端口HundredGigE 3/0/3为Access口，分别允许VLAN 10流量通过。
[DeviceA] interface hundredgige 3/0/3
[DeviceA-HundredGigE3/0/3] port access vlan 10
[DeviceA-HundredGigE3/0/3] undo shutdown
[DeviceA-HundredGigE3/0/3] quit
# 配置实例1绑定VLAN 10。
[DeviceA] stp region-configuration
[DeviceA-mst-region] instance 1 vlan 10
[DeviceA-mst-region] active region-configuration
[DeviceA-mst-region] quit
# 创建Smart Link组1，并配置保护MST 1所绑定的VLAN 10。
[DeviceA] smart-link group 1
[DeviceA-smlk-group1] protected-vlan reference-instance 1
# 配置端口HundredGigE 3/0/1为主端口，HundredGigE 3/0/2为从端口。
[DeviceA-smlk-group1] port hundredgige 3/0/1 primary
[DeviceA-smlk-group1] port hundredgige 3/0/2 secondary
# 使能发送Flush报文。
[DeviceA-smlk-group1] flush enable control-vlan 10
# 配置抢占模式，配置延时抢占时间为10秒。
[DeviceA-smlk-group1] preemption mode role
[DeviceA-smlk-group1] preemption delay 10
[DeviceA-smlk-group1] quit
# 开启端口。
[DeviceA] interface hundredgige 3/0/1
[DeviceA-HundredGigE3/0/1] undo shutdown
[DeviceA-HundredGigE3/0/1] quit
[DeviceA] interface HundredGigE 3/0/2
[DeviceA-HundredGigE3/0/2] undo shutdown
[DeviceA-HundredGigE3/0/2] quit
# 配置端口HundredGigE 3/0/1、HundredGigE 3/0/2为Trunk口，允许VLAN 11流量通过，并使能Flush报文接收。
<DeviceB> system-view
[DeviceB] vlan 10 to 11
[DeviceB] interface hundredgige 3/0/1
[DeviceB-HundredGigE3/0/1] port link-type trunk
[DeviceB-HundredGigE3/0/1] port trunk permit vlan 11
[DeviceB-HundredGigE3/0/1] undo port trunk permit vlan 1
[DeviceB-HundredGigE3/0/1] undo stp enable
[DeviceB-HundredGigE3/0/1] shutdown
[DeviceB-HundredGigE3/0/1] quit
[DeviceB] interface hundredgige 3/0/2
[DeviceB-HundredGigE3/0/2] port link-type trunk
[DeviceB-HundredGigE3/0/2] port trunk permit vlan 11
[DeviceB-HundredGigE3/0/2] undo port trunk permit vlan 1
[DeviceB-HundredGigE3/0/2] undo stp enable
[DeviceB-HundredGigE3/0/2] shutdown
[DeviceB-HundredGigE3/0/2] quit
# 配置端口HundredGigE 3/0/3为Access口，分别允许VLAN 11流量通过。
[DeviceB] interface hundredgige 3/0/3
[DeviceB-HundredGigE3/0/3] port access vlan 11
[DeviceB-HundredGigE3/0/3] undo shutdown
[DeviceB-HundredGigE3/0/3] quit
# 配置实例1绑定VLAN 11。
[DeviceB] stp region-configuration
[DeviceB-mst-region] instance 1 vlan 11
[DeviceB-mst-region] active region-configuration
[DeviceB-mst-region] quit
# 创建Smart Link组1，并配置保护MST 1所绑定的VLAN 11。
[DeviceB] smart-link group 1
[DeviceB-smlk-group1] protected-vlan reference-instance 1
# 配置端口HundredGigE 3/0/1为主端口，HundredGigE 3/0/2为从端口。
[DeviceB-smlk-group1] port hundredgige 3/0/1 primary
[DeviceB-smlk-group1] port hundredgige 3/0/2 secondary
# 使能发送Flush报文。
[DeviceB-smlk-group1] flush enable control-vlan 11
# 配置抢占模式，配置延时抢占时间为10秒。
[DeviceB-smlk-group1] preemption mode role
[DeviceB-smlk-group1] preemption delay 10
[DeviceB-smlk-group1] quit
# 开启端口。
[DeviceB] interface hundredgige 3/0/1
[DeviceB-HundredGigE3/0/1] undo shutdown
[DeviceB-HundredGigE3/0/1] quit
[DeviceB] interface hundredgige 3/0/2
[DeviceB-HundredGigE3/0/2] undo shutdown
[DeviceB-HundredGigE3/0/2] quit
# 配置端口HundredGigE 3/0/1为Trunk口，允许VLAN 10流量通过，并使能Flush报文接收。
<DeviceC> system-view
[DeviceC] vlan 10 to 11
[DeviceC] interface hundredgige 3/0/1
[DeviceC-HundredGigE3/0/1] port link-type trunk
[DeviceC-HundredGigE3/0/1] port trunk permit vlan 10
[DeviceC-HundredGigE3/0/1] undo port trunk permit vlan 1
[DeviceC-HundredGigE3/0/1] smart-link flush enable control-vlan 10
[DeviceC-HundredGigE3/0/1] undo shutdown
[DeviceC-HundredGigE3/0/1] quit
# 配置端口HundredGigE 3/0/2为Trunk口，允许VLAN 10、VLAN11流量通过，并使能Flush报文接收。
[DeviceC] interface hundredgige 3/0/2
[DeviceC-HundredGigE3/0/2] port link-type trunk
[DeviceC-HundredGigE3/0/2] port trunk permit vlan 10 11
[DeviceC-HundredGigE3/0/2] undo port trunk permit vlan 1
[DeviceC-HundredGigE3/0/2] smart-link flush enable control-vlan 10 11
[DeviceC-HundredGigE3/0/2] undo shutdown
[DeviceC-HundredGigE3/0/2] quit
# 配置端口HundredGigE 3/0/3为Trunk口，允许VLAN 11流量通过，并使能Flush报文接收。
[DeviceC] interface hundredgige 3/0/3
[DeviceC-HundredGigE3/0/3] port link-type trunk
[DeviceC-HundredGigE3/0/3] port trunk permit vlan 11
[DeviceC-HundredGigE3/0/3] undo port trunk permit vlan 1
[DeviceC-HundredGigE3/0/3] smart-link flush enable control-vlan 11
[DeviceC-HundredGigE3/0/3] undo shutdown
[DeviceC-HundredGigE3/0/3] quit
# 创建Monitor Link组1。
[DeviceC] monitor-link group 1
# HundredGigE 3/0/2配置为上行接口，HundredGigE 3/0/1 和HundredGigE 3/0/3配置为下行接口。
[DeviceC-mtlk-group1] port hundredgige 3/0/2 uplink
[DeviceC-mtlk-group1] port hundredgige 3/0/1 downlink
[DeviceC-mtlk-group1] port hundredgige 3/0/3 downlink
[DeviceC-mtlk-group1] quit
# 配置端口HundredGigE 3/0/1为Trunk口，允许VLAN 11流量通过，并使能Flush报文接收。
<DeviceD> system-view
[DeviceD] vlan 10 to 11
[DeviceD] interface hundredgige 3/0/1
[DeviceD-HundredGigE3/0/1] port link-type trunk
[DeviceD-HundredGigE3/0/1] port trunk permit vlan 11
[DeviceD-HundredGigE3/0/1] undo port trunk permit vlan 1
[DeviceD-HundredGigE3/0/1] smart-link flush enable control-vlan 11
[DeviceD-HundredGigE3/0/1] undo shutdown
[DeviceD-HundredGigE3/0/1] quit
# 配置端口HundredGigE 3/0/2为Trunk口，允许VLAN 10、VLAN11流量通过，并使能Flush报文接收。
[DeviceD] interface hundredgige 3/0/2
[DeviceD-HundredGigE3/0/2] port link-type trunk
[DeviceD-HundredGigE3/0/2] port trunk permit vlan 10 11
[DeviceD-HundredGigE3/0/2] undo port trunk permit vlan 1
[DeviceD-HundredGigE3/0/2] smart-link flush enable control-vlan 10 11
[DeviceD-HundredGigE3/0/2] undo shutdown
[DeviceD-HundredGigE3/0/2] quit
# 配置端口HundredGigE 3/0/3为Trunk口，允许VLAN 10流量通过，并使能Flush报文接收。
[DeviceD] interface hundredgige 3/0/3
[DeviceD-HundredGigE3/0/3] port link-type trunk
[DeviceD-HundredGigE3/0/3] port trunk permit vlan 10
[DeviceD-HundredGigE3/0/3] undo port trunk permit vlan 1
[DeviceD-HundredGigE3/0/3] smart-link flush enable control-vlan 10
[DeviceD-HundredGigE3/0/3] undo shutdown
[DeviceD-HundredGigE3/0/3] quit
# 创建Monitor Link组1。
[DeviceD] monitor-link group 1
# HundredGigE 3/0/2配置为上行接口，HundredGigE 3/0/1和HundredGigE 3/0/3配置为下行接口。
[DeviceD-mtlk-group1] port hundredgige 3/0/2 uplink
[DeviceD-mtlk-group1] port hundredgige 3/0/1 downlink
[DeviceD-mtlk-group1] port hundredgige 3/0/3 downlink
[DeviceD-mtlk-group1] quit
# 配置端口HundredGigE 3/0/1、HundredGigE 3/0/2、HundredGigE 3/0/3为Trunk口，允许VLAN 10、VLAN 11的流量通过；HundredGigE 3/0/1、HundredGigE 3/0/2使能Flush报文接收。
<DeviceE> system-view
[DeviceE] vlan 10 to 11
[DeviceE] interface hundredgige 3/0/1
[DeviceE-HundredGigE3/0/1] port link-type trunk
[DeviceE-HundredGigE3/0/1] port trunk permit vlan 10 11
[DeviceE-HundredGigE3/0/1] undo port trunk permit vlan 1
[DeviceE-HundredGigE3/0/1] smart-link flush enable control-vlan 10 11
[DeviceE-HundredGigE3/0/1] undo shutdown
[DeviceE-HundredGigE3/0/1] quit
[DeviceE] interface hundredgige 3/0/2
[DeviceE-HundredGigE3/0/2] port link-type trunk
[DeviceE-HundredGigE3/0/2] port trunk permit vlan 10 11
[DeviceE-HundredGigE3/0/2] undo port trunk permit vlan 1
[DeviceE-HundredGigE3/0/2] smart-link flush enable control-vlan 10 11
[DeviceE-HundredGigE3/0/2] undo shutdown
[DeviceE-HundredGigE3/0/2] quit
[DeviceE] interface hundredgige 3/0/3
[DeviceE-HundredGigE3/0/3] port link-type trunk
[DeviceE-HundredGigE3/0/3] port trunk permit vlan 10 11
[DeviceE-HundredGigE3/0/3] undo port trunk permit vlan 1
[DeviceE-HundredGigE3/0/3] undo shutdown
[DeviceE-HundredGigE3/0/3] quit
(1) 当Device A和Device B正常工作时，查看Smart Link的配置
# 查看Device A上的Smart Link配置。
[DeviceA] display smart-link group all
Smart link group 1 information:
Device ID : 0000-fc00-2500
Preemption mode : ROLE
Preemption delay: 10(s)
Control VLAN : 10
Protected VLAN : Reference Instance 1
Member Role State Flush-count Last-flush-time
-----------------------------------------------------------------------------
HGE3/0/1 PRIMARY ACTIVE 1 19:37:49 2019/12/29
HGE3/0/2 SECONDARY STANDBY 3 17:43:06 2019/12/29
# 查看Device B上的Smart Link配置。
[DeviceB] display smart-link group all
Smart link group 1 information:
Device ID : 0000-fc00-2500
Preemption mode : ROLE
Preemption delay: 10(s)
Control VLAN : 11
Protected VLAN : Reference Instance 2
Member Role State Flush-count Last-flush-time
-----------------------------------------------------------------------------
HGE3/0/1 PRIMARY ACTIVE 2 16:22:40 2019/12/29
HGE3/0/2 SECONDARY STANDBY 0 NA
上述信息表示，在Device A设备的Smart Link组1中，Device A的HundredGigE 3/0/1是主端口，负责转发VLAN实例1的流量；在Device B设备的Smart Link组1中，Device A的HundredGigE 3/0/1是主端口，负责转发VLAN实例2的流量。
(2) 当Device C和Device D正常工作时，查看Monitor Link的配置
# 查看Device C上的Monitor Link配置。
[DeviceC] display monitor-link group all
Monitor link group 1 information:
Group status : UP
Downlink up-delay: 0(s)
Last-up-time : 10:07:26 2019/10/23
Last-down-time : -
Member Role Status
--------------------------------------------
HGE3/0/2 UPLINK UP
HGE3/0/1 DOWNLINK UP
HGE3/0/3 DOWNLINK UP
# 查看Device D上的Monitor Link配置。
[DeviceD] display monitor-link group all
Monitor link group 1 information:
Group status : UP
Downlink up-delay: 0(s)
Last-up-time : 19:49:33 2019/12/29
Last-down-time : -
Member Role Status
--------------------------------------------
HGE3/0/2 UPLINK UP
HGE3/0/1 DOWNLINK UP
HGE3/0/3 DOWNLINK UP
上述信息表示，Device C设备的Monitor Link 1中，HundredGigE 3/0/2为上行接口；Device D设备的Monitor Link 1中，HundredGigE 3/0/2为上行接口。
(3) 当Device A或Device B的HundredGigE 3/0/1接口Down时，查看Smart Link的配置
# 查看Device A上的Smart Link配置。
[DeviceA] display smart-link group all
Smart link group 1 information:
Device ID : 0000-fc00-2500
Preemption mode : ROLE
Preemption delay: 10(s)
Control VLAN : 10
Protected VLAN : Reference Instance 1
Member Role State Flush-count Last-flush-time
-----------------------------------------------------------------------------
HGE3/0/1 PRIMARY DOWN 1 NA
HGE3/0/2 SECONDAR ACTIVE 3 17:43:06 2019/12/29
# 查看Device B上的Smart Link配置。
[DeviceB] display smart-link group all
Smart link group 1 information:
Device ID : 0000-fc00-2500
Preemption mode : ROLE
Preemption delay: 10(s)
Control VLAN : 11
Protected VLAN : Reference Instance 2
Member Role State Flush-count Last-flush-time
-----------------------------------------------------------------------------
HGE3/0/1 PRIMARY DOWN 1 NA
HGE3/0/2 SECONDAR ACTIVE 3 17:43:06 2019/12/29
上述信息表示，Device A的HundredGigE 3/0/1接口Down时，在Smart Link组1中， HundredGigE 3/0/2成为主端口，负责转发VLAN实例1的流量；Device B的HundredGigE 3/0/1接口Down时，在Smart Link组1中， HundredGigE 3/0/2成为主端口，负责转发VLAN实例1的流量。
# 通过使用display smart-link flush命令可以查看Device C上收到的Flush报文信息。
[DeviceC] display smart-link flush
Received flush packets : 1
Receiving interface of the last flush packet : HundredGigE3/0/1
Receiving time of the last flush packet : 07:57:22 2019/10/23
Device ID of the last flush packet : 0000-fc00-2500
Control VLAN of the last flush packet : 10
# 通过使用display smart-link flush命令可以查看Device D上收到的Flush报文信息。
[DeviceD] display smart-link flush
Received flush packets : 1
Receiving interface of the last flush packet : HundredGigE3/0/1
Receiving time of the last flush packet : 07:57:22 2019/10/23
Device ID of the last flush packet : 0000-fc00-2500
Control VLAN of the last flush packet : 11
(4) 当Device C或Device D的上行接口Down时，查看Monitor Link的配置
# 查看Device C上的Monitor Link配置。
[DeviceC] display monitor-link group all
Monitor link group 1 information:
Group status : DOWN
Downlink up-delay: 0(s)
Last-up-time : 10:07:26 2019/10/23
Last-down-time : -
Member Role Status
--------------------------------------------
HGE3/0/2 UPLINK DOWN
HGE3/0/1 DOWNLINK DOWN
HGE3/0/3 DOWNLINK DOWN
# 查看Device D上的Monitor Link配置。
[DeviceD] display monitor-link group all
Monitor link group 1 information:
Group status : DOWN
Downlink up-delay: 0(s)
Last-up-time : 19:49:33 2019/12/29
Last-down-time : -
Member Role Status
--------------------------------------------
HGE3/0/2 UPLINK DOWN
HGE3/0/1 DOWNLINK DOWN
HGE3/0/3 DOWNLINK DOWN
上述信息表示，Device A或Device B设备的HundredGigE 3/0/2Down时，Monitor Link 1的状态变为Down，下行设备会将流量切换到另一条链路进行转发。
· Device A：
#
vlan 1
#
vlan 10
#
stp region-configuration
instance 1 vlan 10
active region-configuration
#
smart-link group 1
preemption mode role
flush enable control-vlan 10
protected-vlan reference-instance 1
#
interface HundredGigE3/0/1
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 10
undo stp enable
port smart-link group 1 primary
#
interface HundredGigE3/0/2
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 10
undo stp enable
port smart-link group 1 secondary
#
interface HundredGigE3/0/3
port link-mode bridge
port access vlan 10
#
· Device B：
#
vlan 1
#
vlan 11
#
stp region-configuration
instance 1 vlan 11
active region-configuration
#
smart-link group 1
preemption mode role
flush enable control-vlan 11
protected-vlan reference-instance 1
#
interface HundredGigE3/0/1
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 11
undo stp enable
port smart-link group 1 primary
#
interface HundredGigE3/0/2
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 11
undo stp enable
port smart-link group 1 secondary
#
interface HundredGigE3/0/3
port link-mode bridge
port access vlan 11
#
· Device C：
#
vlan 1
#
vlan 10 to 11
#
monitor-link group 1
monitor-link group 2
#
interface HundredGigE3/0/1
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 10
smart-link flush enable control-vlan 10
port monitor-link group 1 downlink
#
interface HundredGigE3/0/2
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 10 to 11
smart-link flush enable control-vlan 10 to 11
port monitor-link group 1 uplink
#
interface HundredGigE3/0/3
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 11
smart-link flush enable control-vlan 11
port monitor-link group 1 downlink
#
· Device D：
#
vlan 1
#
vlan 10 to 11
#
monitor-link group 1
monitor-link group 2
#
interface HundredGigE3/0/1
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 11
smart-link flush enable control-vlan 11
port monitor-link group 1 downlink
#
interface HundredGigE3/0/2
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 10 to 11
smart-link flush enable control-vlan 10 to 11
port monitor-link group 1 uplink
#
interface HundredGigE3/0/3
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 10
smart-link flush enable control-vlan 10
port monitor-link group 1 downlink
#
· Device E：
#
vlan 1
#
vlan 10 to 11
#
interface HundredGigE3/0/1
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 10 to 11
smart-link flush enable control-vlan 10 to 11
#
interface HundredGigE3/0/2
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 10 to 11
smart-link flush enable control-vlan 10 to 11
#
interface HundredGigE3/0/3
port link-mode bridge
port link-type trunk
undo port trunk permit vlan 1
port trunk permit vlan 10 to 11
#
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