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1.7.1  单Smart Link组配置举例

1. 组网需求

·     在图1-2所示的组网中，Device C和Device D为Smart Link设备，Device A、Device B和Device E为相关设备。Device C和Device D上VLAN 1～30的流量分别双上行到Device A。

·     通过配置，在Device C和Device D上分别实现双上行链路的灵活备份。

2. 组网图

图1-2 单Smart Link组配置组网图

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3. 配置步骤

(1)     配置Device C

# 创建VLAN 1～30，将这些VLAN都映射到MSTI 1上，并激活MST域的配置。

<DeviceC> system-view

[DeviceC] vlan 1 to 30

[DeviceC] stp region-configuration

[DeviceC-mst-region] instance 1 vlan 1 to 30

[DeviceC-mst-region] active region-configuration

[DeviceC-mst-region] quit

# 分别关闭端口GigabitEthernet1/0/1和GigabitEthernet1/0/2，在这两个端口上分别关闭生成树协议，并将端口配置为Trunk端口且允许VLAN 1～30通过。

[DeviceC] interface gigabitethernet 1/0/1

[DeviceC-GigabitEthernet1/0/1] shutdown

[DeviceC-GigabitEthernet1/0/1] undo stp enable

[DeviceC-GigabitEthernet1/0/1] port link-type trunk

[DeviceC-GigabitEthernet1/0/1] port trunk permit vlan 1 to 30

[DeviceC-GigabitEthernet1/0/1] quit

[DeviceC] interface gigabitethernet 1/0/2

[DeviceC-GigabitEthernet1/0/2] shutdown

[DeviceC-GigabitEthernet1/0/2] undo stp enable

[DeviceC-GigabitEthernet1/0/2] port link-type trunk

[DeviceC-GigabitEthernet1/0/2] port trunk permit vlan 1 to 30

[DeviceC-GigabitEthernet1/0/2] quit

# 创建Smart Link组1，并配置其保护VLAN为MSTI 1所映射的VLAN。

[DeviceC] smart-link group 1

[DeviceC-smlk-group1] protected-vlan reference-instance 1

# 配置Smart Link组1的主端口为GigabitEthernet1/0/1，从端口为GigabitEthernet1/0/2。

[DeviceC-smlk-group1] port gigabitethernet 1/0/1 primary

[DeviceC-smlk-group1] port gigabitethernet 1/0/2 secondary

# 在Smart Link组1中开启发送Flush报文的功能，并指定发送Flush报文的控制VLAN为VLAN 10。

[DeviceC-smlk-group1] flush enable control-vlan 10

[DeviceC-smlk-group1] quit

# 重新开启端口GigabitEthernet1/0/1和GigabitEthernet1/0/2。

[DeviceC] interface gigabitethernet 1/0/1

[DeviceC-GigabitEthernet1/0/1] undo shutdown

[DeviceC-GigabitEthernet1/0/1] quit

[DeviceC] interface gigabitethernet 1/0/2

[DeviceC-GigabitEthernet1/0/2] undo shutdown

[DeviceC-GigabitEthernet1/0/2] quit

(2)     配置Device D

# 创建VLAN 1～30，将这些VLAN都映射到MSTI 1上，并激活MST域的配置。

<DeviceD> system-view

[DeviceD] vlan 1 to 30

[DeviceD] stp region-configuration

[DeviceD-mst-region] instance 1 vlan 1 to 30

[DeviceD-mst-region] active region-configuration

[DeviceD-mst-region] quit

# 分别关闭端口GigabitEthernet1/0/1和GigabitEthernet1/0/2，在这两个端口上分别关闭生成树协议，并将端口配置为Trunk端口且允许VLAN 1～30通过。

[DeviceD] interface gigabitethernet 1/0/1

[DeviceD-GigabitEthernet1/0/1] shutdown

[DeviceD-GigabitEthernet1/0/1] undo stp enable

[DeviceD-GigabitEthernet1/0/1] port link-type trunk

[DeviceD-GigabitEthernet1/0/1] port trunk permit vlan 1 to 30

[DeviceD-GigabitEthernet1/0/1] quit

[DeviceD] interface gigabitethernet 1/0/2

[DeviceD-GigabitEthernet1/0/2] shutdown

[DeviceD-GigabitEthernet1/0/2] undo stp enable

[DeviceD-GigabitEthernet1/0/2] port link-type trunk

[DeviceD-GigabitEthernet1/0/2] port trunk permit vlan 1 to 30

[DeviceD-GigabitEthernet1/0/2] quit

# 创建Smart Link组1，并配置其保护VLAN为MSTI 1所映射的VLAN。

[DeviceD] smart-link group 1

[DeviceD-smlk-group1] protected-vlan reference-instance 1

# 配置Smart Link组1的主端口为GigabitEthernet1/0/1，从端口为GigabitEthernet1/0/2。

[DeviceD-smlk-group1] port gigabitethernet 1/0/1 primary

[DeviceD-smlk-group1] port gigabitethernet 1/0/2 secondary

# 在Smart Link组1中开启发送Flush报文的功能，并指定发送Flush报文的控制VLAN为VLAN 20。

[DeviceD-smlk-group1] flush enable control-vlan 20

[DeviceD-smlk-group1] quit

# 重新开启端口GigabitEthernet1/0/1和GigabitEthernet1/0/2。

[DeviceD] interface gigabitethernet 1/0/1

[DeviceD-GigabitEthernet1/0/1] undo shutdown

[DeviceD-GigabitEthernet1/0/1] quit

[DeviceD] interface gigabitethernet 1/0/2

[DeviceD-GigabitEthernet1/0/2] undo shutdown

[DeviceD-GigabitEthernet1/0/2] quit

(3)     配置Device B

# 创建VLAN 1～30。

<DeviceB> system-view

[DeviceB] vlan 1 to 30

# 将端口GigabitEthernet1/0/1配置为Trunk端口且允许VLAN 1～30通过，在该端口上开启接收Flush报文的功能，并指定接收Flush报文的控制VLAN为VLAN 10和20。

[DeviceB] interface gigabitethernet 1/0/1

[DeviceB-GigabitEthernet1/0/1] port link-type trunk

[DeviceB-GigabitEthernet1/0/1] port trunk permit vlan 1 to 30

[DeviceB-GigabitEthernet1/0/1] smart-link flush enable control-vlan 10 20

[DeviceB-GigabitEthernet1/0/1] quit

# 将端口GigabitEthernet1/0/2配置为Trunk端口且允许VLAN 1～30通过，在该端口上关闭生成树协议并开启接收Flush报文的功能，并指定接收Flush报文的控制VLAN为VLAN 20。

[DeviceB] interface gigabitethernet 1/0/2

[DeviceB-GigabitEthernet1/0/2] port link-type trunk

[DeviceB-GigabitEthernet1/0/2] port trunk permit vlan 1 to 30

[DeviceB-GigabitEthernet1/0/2] undo stp enable

[DeviceB-GigabitEthernet1/0/2] smart-link flush enable control-vlan 20

[DeviceB-GigabitEthernet1/0/2] quit

# 将端口GigabitEthernet1/0/3配置为Trunk端口且允许VLAN 1～30通过，在该端口上关闭生成树协议并开启接收Flush报文的功能，并指定接收Flush报文的控制VLAN为VLAN 10。

[DeviceB] interface gigabitethernet 1/0/3

[DeviceB-GigabitEthernet1/0/3] port link-type trunk

[DeviceB-GigabitEthernet1/0/3] port trunk permit vlan 1 to 30

[DeviceB-GigabitEthernet1/0/3] undo stp enable

[DeviceB-GigabitEthernet1/0/3] smart-link flush enable control-vlan 10

[DeviceB-GigabitEthernet1/0/3] quit

(4)     配置Device E

# 创建VLAN 1～30。

<DeviceE> system-view

[DeviceE] vlan 1 to 30

# 将端口GigabitEthernet1/0/1配置为Trunk端口且允许VLAN 1～30通过，在该端口上开启接收Flush报文的功能，并指定接收Flush报文的控制VLAN为VLAN 10和20。

[DeviceE] interface gigabitethernet 1/0/1

[DeviceE-GigabitEthernet1/0/1] port link-type trunk

[DeviceE-GigabitEthernet1/0/1] port trunk permit vlan 1 to 30

[DeviceE-GigabitEthernet1/0/1] smart-link flush enable control-vlan 10 20

[DeviceE-GigabitEthernet1/0/1] quit

# 将端口GigabitEthernet1/0/2配置为Trunk端口且允许VLAN 1～30通过，在该端口上关闭生成树协议并开启接收Flush报文的功能，并指定接收Flush报文的控制VLAN为VLAN 10。

[DeviceE] interface gigabitethernet 1/0/2

[DeviceE-GigabitEthernet1/0/2] port link-type trunk

[DeviceE-GigabitEthernet1/0/2] port trunk permit vlan 1 to 30

[DeviceE-GigabitEthernet1/0/2] undo stp enable

[DeviceE-GigabitEthernet1/0/2] smart-link flush enable control-vlan 10

[DeviceE-GigabitEthernet1/0/2] quit

# 将端口GigabitEthernet1/0/3配置为Trunk端口且允许VLAN 1～30通过，在该端口上关闭生成树协议并开启接收Flush报文的功能，并指定接收Flush报文的控制VLAN为VLAN 20。

[DeviceE] interface gigabitethernet 1/0/3

[DeviceE-GigabitEthernet1/0/3] port link-type trunk

[DeviceE-GigabitEthernet1/0/3] port trunk permit vlan 1 to 30

[DeviceE-GigabitEthernet1/0/3] undo stp enable

[DeviceE-GigabitEthernet1/0/3] smart-link flush enable control-vlan 20

[DeviceE-GigabitEthernet1/0/3] quit

(5)     配置Device A

# 创建VLAN 1～30。

<DeviceA> system-view

[DeviceA] vlan 1 to 30

# 分别将端口GigabitEthernet1/0/1和GigabitEthernet1/0/2配置为Trunk端口且允许VLAN 1～30通过，在这些端口上开启接收Flush报文的功能，并指定接收Flush报文的控制VLAN为VLAN 10和20。

[DeviceA] interface gigabitethernet 1/0/1

[DeviceA-GigabitEthernet1/0/1] port link-type trunk

[DeviceA-GigabitEthernet1/0/1] port trunk permit vlan 1 to 30

[DeviceA-GigabitEthernet1/0/1] smart-link flush enable control-vlan 10 20

[DeviceA-GigabitEthernet1/0/1] quit

[DeviceA] interface gigabitethernet 1/0/2

[DeviceA-GigabitEthernet1/0/2] port link-type trunk

[DeviceA-GigabitEthernet1/0/2] port trunk permit vlan 1 to 30

[DeviceA-GigabitEthernet1/0/2] smart-link flush enable control-vlan 10 20

[DeviceA-GigabitEthernet1/0/2] quit

4. 验证配置

通过使用display smart-link group命令可以查看设备上Smart Link组的信息：

# 显示Device C上Smart Link组的信息。

[DeviceC] display smart-link group 1

Smart link group 1 information:

  Device ID       : 000f-e23d-5af0

  Preemption mode : None

  Preemption delay: 1(s)

  Control VLAN    : 10

  Protected VLAN  : Reference Instance 1

 

  Member                  Role      State   Flush-count     Last-flush-time

  -----------------------------------------------------------------------------

  GE1/0/1                 PRIMARY   ACTIVE  5               16:45:20 2012/04/21

  GE1/0/2                 SECONDARY STANDBY 1               16:37:20 2012/04/21

通过使用display smart-link flush命令可以查看设备上收到的Flush报文信息：

# 显示Device B上收到的Flush报文信息。

[DeviceB] display smart-link flush

 Received flush packets                             : 5

 Receiving interface of the last flush packet       : GigabitEthernet1/0/3

 Receiving time of the last flush packet            : 16:50:21 2012/04/21

 Device ID of the last flush packet                 : 000f-e23d-5af0

 Control VLAN of the last flush packet              : 10