H3C交换机s12500VRRP典型配置实例

1  简介

本文档介绍VRRP的配置举例。

2  配置前提

本文档不严格与具体软、硬件版本对应,如果使用过程中与产品实际情况有差异,请参考相关产品手册,或以设备实际情况为准。  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VRRP、STP和IPsec特性。

3  VRRP单备份组配置举例

3.1  组网需求  如图1所示,Host A所在网络的出口处部署了两台网关设备。现要求使用VRRP主备备份功能,将这两台设备组成一台虚拟路由器,作为Host A的缺省网关。具体应用需求如下:  ·     在正常情况下,由Device A承担网关功能,转发Host A发送至外网的流量;  ·     当Device A或者Device A的上行接口出现故障时,由Device B接替Device A承担网关功能;  ·     当Device A或者Device A的上行接口故障恢复后,由Device A继续承担网关功能。

图1 VRRP单备份组配置组网图

 

3.2  配置思路

为了让Device A成为Master,需要为Device A配置较高的优先级;  将VRRP组的抢占模式和监视上行接口状态功能结合使用,可以使Master设备根据上行接口的状态自动调整自身的VRRP优先级,从而使VRRP组内的角色发生转变,实现主备切换; 为了避免VRRP备份组中的角色频繁发生变化,可以配置一定的抢占延迟时间。

3.3  使用版本

本举例是在S12500-CMW710-R7328P02版本上进行配置和验证的。

3.4  配置注意事项

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)。  ·     IPv4 VRRP既可以使用VRRPv2版本,也可以使用VRRPv3版本(缺省情况使用VRRPv3)。请确保IPv4 VRRP备份组中的所有路由器上配置的IPv4 VRRP版本一致,否则备份组无法正常工作。  ·     删除IP地址拥有者上的VRRP备份组,将导致地址冲突。建议先修改配置了备份组的接口的IP地址,再删除该接口上的VRRP备份组,以避免地址冲突。  ·     对于同一个VRRP备份组的成员设备,必须保证虚拟路由器的IP地址配置完全一样。  ·     用户在配置降低优先级幅度时,需要确保降低后的优先级比备份组内其他设备的优先级要低,确保备份组内有其他设备被选为Master。

3.5  配置步骤

(1)     Device A的配置

# 配置接口IP地址。  <DeviceA> system-view

[DeviceA] interface ten-gigabitethernet 3/0/1

[DeviceA-Ten-GigabitEthernet3/0/1] undo shutdown

[DeviceA-Ten-GigabitEthernet3/0/1] quit

[DeviceA] vlan 2

[DeviceA-vlan2] port ten-gigabitethernet 3/0/1

[DeviceA-vlan2] quit

[DeviceA] interface vlan-interface 2

[DeviceA-Vlan-interface2] undo shutdown

[DeviceA-Vlan-interface2] ip address 192.168.0.2 24

[DeviceA-Vlan-interface2] quit

[DeviceA] interface ten-gigabitethernet 3/0/2

[DeviceA-Ten-GigabitEthernet3/0/2] undo shutdown

[DeviceA-Ten-GigabitEthernet3/0/2] quit

[DeviceA] vlan 3

[DeviceA-vlan3] port ten-gigabitethernet 3/0/2

[DeviceA-vlan3] quit

[DeviceA] interface vlan-interface 3

[DeviceA-Vlan-interface3] undo shutdown

[DeviceA-Vlan-interface3] quit

# 创建VRRP备份组1,并配置VRRP备份组1的虚拟IP地址为192.168.0.1。

[DeviceA] interface vlan-interface 2

[DeviceA-Vlan-interface2] vrrp vrid 1 virtual-ip 192.168.0.1

# 设置Device A在VRRP备份组1中的优先级为110,高于Device B的优先级100,以保证Device A成为Master负责转发流量。  [DeviceA-Vlan-interface2] vrrp vrid 1 priority 110

# 设置Device A工作在抢占方式,以保证Device A故障恢复后,能再次抢占成为Master,即只要Device A正常工作,就由Device A负责转发流量。为了避免频繁地进行状态切换,配置抢占延迟时间为5秒。  [DeviceA-Vlan-interface2] vrrp vrid 1 preempt-mode delay 5

[DeviceA-Vlan-interface2] quit

# 创建和上行接口VLAN接口3关联的Track项1。

[DeviceA] track 1 interface vlan-interface 3

# 配置监视Track项1,Track项的状态为Negative时,Device A在VRRP备份组中的优先级降低的数值为50。

[DeviceA] interface vlan-interface 2

[DeviceA-Vlan-interface2] vrrp vrid 1 track 1 reduced 50

[DeviceA-Vlan-interface2] quit

(2)     Device B的配置

# 配置VLAN2。

<DeviceB> system-view

[DeviceB] interface ten-gigabitethernet 3/0/1

[DeviceB-Ten-GigabitEthernet3/0/1] undo shutdown

[DeviceB-Ten-GigabitEthernet3/0/1] quit

[DeviceB] vlan 2

[DeviceB-vlan2] port ten-gigabitethernet 3/0/1

[DeviceB-vlan2] quit

[DeviceB] interface vlan-interface 2

[DeviceB-Vlan-interface2] undo shutdown

[DeviceB-Vlan-interface2] ip address 192.168.0.3 24

# 创建VRRP备份组1,并配置VRRP备份组1的虚拟IP地址为192.168.0.1。

[DeviceB-Vlan-interface2] vrrp vrid 1 virtual-ip 192.168.0.1

# 设置Device B在VRRP备份组1中的优先级为100。

[DeviceB-Vlan-interface2] vrrp vrid 1 priority 100

# 设置Device B工作在抢占方式,抢占延迟时间为5秒。

[DeviceB-Vlan-interface2] vrrp vrid 1 preempt-mode delay 5

[DeviceB-Vlan-interface2] quit

3.6  验证配置

# 配置完成后,在Host A上可以ping通Host B。  # 通过display vrrp verbose命令查看配置后的结果,显示Device A上VRRP备份组1的详细信息。

[DeviceA-Vlan-interface2] display vrrp verbose

IPv4 Virtual Router Information:   Running Mode      : Standard   Total number of virtual routers : 1     Interface Vlan-interface2       VRID           : 1                    Adver Timer  : 100       Admin Status   : Up                   State        : Master       Config Pri     : 110                  Running Pri  : 110       Preempt Mode   : Yes                  Delay Time   : 5       Auth Type      : None       Virtual IP     : 192.168.0.1       Virtual MAC    : 0000-5e00-0101       Master IP      : 192.168.0.2     VRRP Track Information:       Track Object   : 1                   State : Positive   Pri Reduced : 50

# 通过display vrrp verbose命令查看配置后的结果,显示Device B上VRRP备份组1的详细信息。

[DeviceB-Vlan-interface2] display vrrp verbose

IPv4 Virtual Router Information:   Running Mode      : Standard   Total number of virtual routers : 1     Interface Vlan-interface2       VRID           : 1                    Adver Timer  : 100       Admin Status   : Up                   State        : Backup       Config Pri     : 100                  Running Pri  : 100       Preempt Mode   : Yes                  Delay Time   : 5       Become Master  : 401ms left       Auth Type      : None       Virtual IP     : 192.168.0.1       Master IP      : 192.168.0.2  以上显示信息表示在VRRP备份组1中Device A为Master,Device B为Backup,Host A发送给Host B的报文通过Device A转发。

# Device A出现故障后,在Host A上仍然可以ping通Host B。

# 通过display vrrp verbose命令查看Device B上VRRP备份组的详细信息,Device A出现故障后,显示Device B上VRRP备份组1的详细信息。

[DeviceB-Vlan-interface2] display vrrp verbose

IPv4 Virtual Router Information:   Running Mode      : Standard   Total number of virtual routers : 1     Interface Vlan-interface2       VRID           : 1                    Adver Timer  : 100       Admin Status   : Up                   State        : Master       Config Pri     : 100                  Running Pri  : 100       Preempt Mode   : Yes                  Delay Time   : 5       Auth Type      : None       Virtual IP     : 192.168.0.1       Virtual MAC    : 0000-5e00-0101       Master IP      : 192.168.0.3  以上显示信息表示Device A出现故障后,Device B成为Master,Host A发送给Host B的报文通过Device B转发。  # Device A故障恢复后,显示Device A上VRRP备份组1的详细信息。

[DeviceA-Vlan-interface2] display vrrp verbose

IPv4 Virtual Router Information:   Running Mode      : Standard   Total number of virtual routers : 1     Interface Vlan-interface2       VRID           : 1                    Adver Timer  : 100       Admin Status   : Up                   State        : Master       Config Pri     : 110                  Running Pri  : 110       Preempt Mode   : Yes                  Delay Time   : 5       Auth Type      : None       Virtual IP     : 192.168.0.1       Virtual MAC    : 0000-5e00-0101       Master IP      : 192.168.0.2     VRRP Track Information:       Track Object   : 1                   State : Positive   Pri Reduced : 50  以上显示信息表示Device A故障恢复后,Device A会抢占成为Master,Host A发送给Host B的报文仍然通过Device A转发。

3.7  配置文件  ·

Device A的配置文件:

# 
vlan 2 


# 
interface Vlan-interface2  

 ip address 192.168.0.1 255.255.255.0   vrrp vrid 1 virtual-ip 192.168.0.2   

vrrp vrid 1 priority 110  

 vrrp vrid 1 preempt-mode delay 5   

vrrp vrid 1 track 1 reduced 50 

# 
interface Vlan-interface3 


# 
interface Ten-GigabitEthernet3/0/1   

port link-mode bridge   

port access vlan 2 


# 
interface Ten-GigabitEthernet3/0/2   

port link-mode bridge  

 port access vlan 3 

#   track 1 interface vlan-interface 3 


# 

·     Device B的配置文件:

# 
vlan 2 

# 
interface Vlan-interface2   

ip address 192.168.0.1 255.255.255.0   

vrrp vrid 1 virtual-ip 192.168.0.2   

vrrp vrid 1 priority 100   

vrrp vrid 1 preempt-mode delay 5 

# 
interface Ten-GigabitEthernet3/0/1  

 port link-mode bridge  

 port access vlan 2 


#

 

 

4 VRRP多备份组配置举例

4.1 组网需求

如图2所示,某公司为了实现网关设备的冗余备份,以及内网主机流量的负载分担,在内部网络的出口处部署了两台设备,并使用VRRP负载分担功能,将这两台设备组成两台虚拟路由器,分别作为区域A和区域B的缺省网关。具体应用需求如下:

· Device A是VRRP备份组1中的Master设备,Device B是VRRP备份组2中的Master设备。在正常情况下,区域A的用户通过Device A进行数据转发,区域B的用户通过Device B进行数据转发。

· 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的上行接口故障发生故障后,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。

图2 VRRP多备份组配置组网图

4.2 配置思路

· 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。

· 为了避免VRRP备份组中的角色频繁发生变化,可以配置一定的抢占延迟时间。

· 为了避免网关设备(Device A和Device B)与二层交换机形成二层环路,使用STP协议在每个VRRP备份组中阻塞一个端口。
4.3 使用版本

本举例是在S12500-CMW710-R7328P02版本上进行配置和验证的。
4.4 配置注意事项

· 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)。

· IPv4 VRRP既可以使用VRRPv2版本,也可以使用VRRPv3版本(缺省情况使用VRRPv3)。请确保IPv4 VRRP备份组中的所有路由器上配置的IPv4 VRRP版本一致,否则VRRP备份组无法正常工作。

· 删除IP地址拥有者上的VRRP备份组,将导致地址冲突。建议先修改配置了VRRP备份组的接口的IP地址,再删除该接口上的VRRP备份组,以避免地址冲突。

· 用户在配置降低优先级幅度时,需要确保降低后的优先级比VRRP备份组内其他设备的优先级要低,确保VRRP备份组内有其他设备被选为Master设备。

· 对于同一个VRRP备份组的成员设备,如下配置必须保证完全一样:

¡ 虚拟路由器的IP地址个数

¡ 每个备份组虚拟路由器的IP地址

¡ 定时器间隔时间
4.5 配置步骤

(1) Device A的配置

# 配置接口IP地址。

system-view

[DeviceA] interface ten-gigabitethernet 3/0/1

[DeviceA-Ten-GigabitEthernet3/0/1] undo shutdown

[DeviceA-Ten-GigabitEthernet3/0/1] quit

[DeviceA] vlan 101

[DeviceA-vlan101] port ten-gigabitethernet 3/0/1

[DeviceA-vlan101] quit

[DeviceA] interface vlan-interface 101

[DeviceA-Vlan-interface101] undo shutdown

[DeviceA-Vlan-interface101] ip address 10.0.0.2 24

[DeviceA-Vlan-interface101] quit

# 请参考以上方法配置图2中其它接口的IP地址,配置步骤这里省略。

# 配置两个网关设备间采用Trunk口直连,允许VLAN 101和VLAN 102的报文通过

[DeviceA] interface ten-gigabitethernet 3/0/24

[DeviceA-Ten-GigabitEthernet3/0/24] port link-type trunk

[DeviceA-Ten-GigabitEthernet3/0/24] undo port trunk permit vlan 1

[DeviceA-Ten-GigabitEthernet3/0/24] port trunk permit vlan 101 to 102

[DeviceA-Ten-GigabitEthernet3/0/24] port trunk pvid vlan 101

[DeviceA-Ten-GigabitEthernet3/0/24] quit

# 关闭Ten-GigabitEthernet3/0/2的STP功能

[DeviceA] interface ten-gigabitethernet 3/0/2

[DeviceA-Ten-GigabitEthernet3/0/2] undo stp enable

[DeviceA-Ten-GigabitEthernet3/0/2] quit

# 创建VRRP备份组1,并配置VRRP备份组1的虚拟IP地址为10.0.0.1,并配置Device A在VRRP备份组1中的优先级为120,高于Device B的优先级。

[DeviceA] interface vlan-interface 101

[DeviceA-Vlan-interface101] vrrp vrid 1 virtual-ip 10.0.0.1

[DeviceA-Vlan-interface101] vrrp vrid 1 priority 120

[DeviceA-Vlan-interface101] quit

# 创建VRRP备份组2,并配置VRRP备份组2的虚拟IP地址为11.0.0.1。

[DeviceA] interface vlan-interface 102

[DeviceA-Vlan-interface102] vrrp vrid 2 virtual-ip 11.0.0.1

[DeviceA-Vlan-interface102] quit

# 设置Device A工作在抢占方式,配置抢占延迟时间为5秒。

[DeviceA] interface vlan-interface 101

[DeviceA-Vlan-interface101] vrrp vrid 1 preempt-mode delay 5

[DeviceA-Vlan-interface101] quit

# 创建和上行接口VLAN接口4094关联的Track项1。

[DeviceA] track 1 interface vlan-interface 4094

# 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50。

[DeviceA] interface vlan-interface 101

[DeviceA-Vlan-interface101] vrrp vrid 1 track 1 reduced 50

[DeviceA-Vlan-interface101] quit

# 配置MSTP,将VLAN101映射到MSI 1,VLAN102映射到MSI 2,并将Device A作为MSI 1的根桥。

[DeviceA] stp region-configuration

[DeviceA-mst-region] region-name vrrp

[DeviceA-mst-region] instance 1 vlan 101

[DeviceA-mst-region] instance 2 vlan 102

[DeviceA-mst-region] active region-configuration

[DeviceA-mst-region] quit

[DeviceA] stp instance 1 root primary

[DeviceA] stp instance 2 root secondary

[DeviceA] stp global enable

(2) Device B的配置

system-view

[DeviceB] interface ten-gigabitethernet 3/0/1

[DeviceB-Ten-GigabitEthernet3/0/1] undo shutdown

[DeviceB-Ten-GigabitEthernet3/0/1] quit

[DeviceB] vlan 101

[DeviceB-vlan101] port ten-gigabitethernet 3/0/1

[DeviceB-vlan101] quit

[DeviceB] interface vlan-interface 101

[DeviceB-Vlan-interface101] undo shutdown

[DeviceB-Vlan-interface101] ip address 10.0.0.3 24

[DeviceB-Vlan-interface101] quit

# 请参考以上方法配置图2中其它接口的IP地址,配置步骤省略。

# 配置两个网关设备间采用trunk口直连,允许VLAN 101和VLAN 102的报文通过

[DeviceB] interface ten-gigabitethernet 3/0/24

[DeviceB-Ten-GigabitEthernet3/0/24] port link-type trunk

[DeviceB-Ten-GigabitEthernet3/0/24] undo port trunk permit vlan 1

[DeviceB-Ten-GigabitEthernet3/0/24] port trunk permit vlan 101 to 102

[DeviceB-Ten-GigabitEthernet3/0/24] port trunk pvid vlan 101

[DeviceB-Ten-GigabitEthernet3/0/24] quit

# 关闭Ten-GigabitEthernet3/0/2的STP功能

[DeviceB] interface ten-gigabitethernet 3/0/2

[DeviceB-Ten-GigabitEthernet3/0/2] undo stp enable

[DeviceB-Ten-GigabitEthernet3/0/2] quit

# 创建VRRP备份组1,并配置VRRP备份组1的虚拟IP地址为10.0.0.1。

[DeviceB] interface vlan-interface 101

[DeviceB-Vlan-interface101] vrrp vrid 1 virtual-ip 10.0.0.1

[DeviceB-Vlan-interface101] quit

# 创建VRRP备份组2,并配置VRRP备份组2的虚拟IP地址为11.0.0.1,并配置Device B在VRRP备份组2中的优先级为120,高于Device A的优先级。

[DeviceB] interface vlan-interface 102

[DeviceB-Vlan-interface102] vrrp vrid 2 virtual-ip 11.0.0.1

[DeviceB-Vlan-interface102] vrrp vrid 2 priority 120

# 设置Device B工作在抢占方式,配置抢占延迟时间为5秒。

[DeviceB-Vlan-interface102] vrrp vrid 2 preempt-mode delay 5

[DeviceB-Vlan-interface102] quit

# 创建和上行接口VLAN接口4094关联的Track项2。

[DeviceB] track 2 interface vlan-interface 4094

# 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50。

[DeviceB] interface vlan-interface 102

[DeviceB-Vlan-interface102] vrrp vrid 2 track 2 reduced 50

[DeviceB-Vlan-interface102] quit

# 配置MSTP,将VLAN101映射到MSI 1,VLAN102映射到MSI 2,并将Device B作为MSI 2的根桥。

[DeviceB] stp region-configuration

[DeviceB-mst-region] region-name vrrp

[DeviceB-mst-region] instance 1 vlan 101

[DeviceB-mst-region] instance 2 vlan 102

[DeviceB-mst-region] active region-configuration

[DeviceB-mst-region] quit

[DeviceB] stp instance 2 root primary

[DeviceB] stp instance 1 root secondary

[DeviceB] stp global enable

(3) L2SwitchA的配置

# 配置MSTP,将VLAN101映射到MSI 1,激活MSTI配置,全局使能STP协议。

system-view

[L2SwitchA] stp region-configuration

[L2SwitchA-mst-region] region-name vrrp

[L2SwitchA-mst-region] instance 1 vlan 101

[L2SwitchA-mst-region] active region-configuration

[L2SwitchA-mst-region] quit

[L2SwitchA] stp global enable

(4) L2SwitchB的配置

# 配置MSTP,将VLAN102映射到MSI 1,激活MSTI配置,全局使能STP协议。

system-view

[L2SwitchB] stp region-configuration

[L2SwitchB-mst-region] region-name vrrp

[L2SwitchB-mst-region] instance 1 vlan 102

[L2SwitchB-mst-region] active region-configuration

[L2SwitchB-mst-region] quit

[L2SwitchB] stp global enable
4.6 验证配置

(1) 配置完成后,区域A和区域B中的主机都可以ping通外网。

# 检查区域A的主机到目的端100.0.0.1是否可达。

ping 100.0.0.1

PING 100.0.0.1 (100.0.0.1): 56 data bytes

56 bytes from 100.0.0.1: seq=0 ttl=128 time=22.43 ms

56 bytes from 100.0.0.1: seq=1 ttl=128 time=7.17 ms

56 bytes from 100.0.0.1: seq=2 ttl=128 time=8.91 ms

56 bytes from 100.0.0.1: seq=3 ttl=128 time=7.45 ms

56 bytes from 100.0.0.1: seq=4 ttl=128 time=9.11 ms

— 100.0.0.1 ping statistics —

5 packets transmitted, 5 packets received, 0% packet loss

round-trip min/avg/max = 7.17/11.01/22.43 ms

# 检查区域B的主机到目的端100.1.0.1是否可达。

ping 100.1.0.1

PING 100.1.0.1 (100.1.0.1): 56 data bytes

56 bytes from 100.1.0.1: seq=0 ttl=128 time=22.43 ms

56 bytes from 100.1.0.1: seq=1 ttl=128 time=7.17 ms

56 bytes from 100.1.0.1: seq=2 ttl=128 time=8.91 ms

56 bytes from 100.1.0.1: seq=3 ttl=128 time=7.45 ms

56 bytes from 100.1.0.1: seq=4 ttl=128 time=9.11 ms

— 100.1.0.1 ping statistics —

5 packets transmitted, 5 packets received, 0% packet loss

round-trip min/avg/max = 7.17/11.01/22.43 ms

(2) 通过display vrrp verbose命令查看配置后的结果。

# 查看Device A上全部IPv4 VRRP备份组的详细信息,显示Device A在备份组1中为Master设备,在备份组2中为Backup设备。

[DeviceA] display vrrp verbose

IPv4 Virtual Router Information:

Running Mode : Standard

Total number of virtual routers : 2

Interface Vlan-interface101

VRID : 1 Adver Timer : 100

Admin Status : Up State : Master

Config Pri : 120 Running Pri : 120

Preempt Mode : Yes Delay Time : 5

Auth Type : None

Virtual IP : 10.0.0.1

Virtual MAC : 0000-5e00-0101

Master IP : 10.0.0.2

VRRP Track Information:

Track Object : 1 State : Positive Pri Reduced : 50

Interface Vlan-interface102

VRID : 2 Adver Timer : 100

Admin Status : Up State : Backup

Config Pri : 100 Running Pri : 100

Preempt Mode : Yes Delay Time : 0

Auth Type : None

Virtual IP : 11.0.0.1

Master IP : 11.0.0.3

# 查看Device B上全部IPv4 VRRP备份组的详细信息,显示Device B在备份组1中为Backup设备,在备份组2中为Master设备。

[DeviceB] display vrrp verbose

IPv4 Virtual Router Information:

Running Mode : Standard

Total number of virtual routers : 2

Interface Vlan-interface101

VRID : 1 Adver Timer : 100

Admin Status : Up State : Backup

Config Pri : 100 Running Pri : 100

Preempt Mode : Yes Delay Time : 0

Auth Type : None

Virtual IP : 10.0.0.1

Master IP : 10.0.0.2

Interface Vlan-interface102

VRID : 2 Adver Timer : 100

Admin Status : Up State : Master

Config Pri : 120 Running Pri : 120

Preempt Mode : Yes Delay Time : 5

Auth Type : None

Virtual IP : 11.0.0.1

Virtual MAC : 0000-5e00-0102

Master IP : 11.0.0.3

VRRP Track Information:

Track Object : 2 State : Positive Pri Reduced : 50

# Device A出现故障后,通过display vrrp verbose命令查看Device B上备份组的详细信息。可以看到Device B抢占为备份组1的Master。

[DeviceB] display vrrp verbose

IPv4 Virtual Router Information:

Running Mode : Standard

Total number of virtual routers : 2

Interface Vlan-interface101

VRID : 1 Adver Timer : 100

Admin Status : Up State : Master

Config Pri : 100 Running Pri : 100

Preempt Mode : Yes Delay Time : 0

Auth Type : None

Virtual IP : 10.0.0.1

Virtual MAC : 0000-5e00-0101

Master IP : 10.0.0.3

Interface Vlan-interface102

VRID : 2 Adver Timer : 100

Admin Status : Up State : Master

Config Pri : 120 Running Pri : 120

Preempt Mode : Yes Delay Time : 5

Auth Type : None

Virtual IP : 11.0.0.1

Virtual MAC : 0000-5e00-0102

Master IP : 11.0.0.3

VRRP Track Information:

Track Object : 2 State : Positive Pri Reduced : 50

以上显示信息表示Device A出现故障后,区域A和区域B中的主机仍然可以ping通外网。

# 当Device A故障恢复后,显示Device A上备份组的详细信息。

[DeviceA] display vrrp verbose

IPv4 Virtual Router Information:

Running Mode : Standard

Total number of virtual routers : 2

Interface Vlan-interface101

VRID : 1 Adver Timer : 100

Admin Status : Up State : Master

Config Pri : 120 Running Pri : 120

Preempt Mode : Yes Delay Time : 5

Auth Type : None

Virtual IP : 10.0.0.1

Virtual MAC : 0000-5e00-0101

Master IP : 10.0.0.2

VRRP Track Information:

Track Object : 1 State : Positive Pri Reduced : 50

Interface Vlan-interface102

VRID : 2 Adver Timer : 100

Admin Status : Up State : Backup

Config Pri : 100 Running Pri : 100

Preempt Mode : Yes Delay Time : 0

Become Master : 3550ms left

Auth Type : None

Virtual IP : 11.0.0.1

Master IP : 11.0.0.3

以上显示信息表示当Device A故障恢复后,Device A在VRRP备份组1中恢复为原来的优先级并抢占成为该备份组的Master,VLAN 101内的主机通过Device A与外界通信。

4.7 配置文件
· Device A的配置文件:

#
vlan 101 to 102
#
vlan 4094
#
stp region-configuration region-name vrrp instance 1 vlan 101 instance 2 vlan 102 active region-configuration
# stp instance 1 root primary stp global enable
#
interface Vlan-interface101 ip address 10.0.0.2 255.255.255.0 vrrp vrid 1 virtual-ip 10.0.0.1 vrrp vrid 1 priority 120 vrrp vrid 1 track 1 reduced 50
#
interface Vlan-interface102 ip address 11.0.0.2 255.255.255.0 vrrp vrid 2 virtual-ip 11.0.0.1
#
interface Vlan-interface4094 ip address 100.0.0.2 255.255.255.0
#
interface Ten-GigabitEthernet3/0/1 port link-mode bridge port access vlan 101
#
interface Ten-GigabitEthernet3/0/2 port link-mode bridge port access vlan 4094 undo stp enable
#
interface Ten-GigabitEthernet3/0/3 port link-mode bridge port access vlan 102
#
interface Ten-GigabitEthernet3/0/24
port link-mode bridge port link-type trunk undo port trunk permit vlan 1 port trunk permit vlan 101 to 102 port trunk pvid vlan 101
# track 1 interface vlan-interface 4094
#

· Device B的配置文件:

#
vlan 101 to 102
#
vlan 4094
#
stp region-configuration region-name vrrp instance 1 vlan 101 instance 2 vlan 102 active region-configuration
#
stp instance 2 root primary stp global enable
#
interface Vlan-interface101 ip address 10.0.0.3 255.255.255.0 vrrp vrid 1 virtual-ip 10.0.0.1
#
interface Vlan-interface102 ip address 11.0.0.3 255.255.255.0 vrrp vrid 2 virtual-ip 11.0.0.1 vrrp vrid 2 priority 120 vrrp vrid 2 track 2 reduced 50
#
interface Vlan-interface4094 ip address 100.1.0.2 255.255.255.0
#
interface Ten-GigabitEthernet3/0/1 port link-mode bridge port access vlan 101
#
interface Ten-GigabitEthernet3/0/2 port link-mode bridge port access vlan 4094
undo stp enable
#
interface Ten-GigabitEthernet3/0/3 port link-mode bridge port access vlan 102
#
interface Ten-GigabitEthernet3/0/24 port link-mode bridge port link-type trunk undo port trunk permit vlan 1 port trunk permit vlan 101 to 102 port trunk pvid vlan 101
# track 2 interface vlan-interface 4094
#

#
5 VRRP负载均衡模式配置举例
5.1 组网需求

如图3所示,Host A、Host B和Host C所在网络的出口处部署了三台设备。现要求使用VRRP负载均衡功能,将Device A、Device B和Device C组成一台虚拟路由器,作为局域网内主机的缺省网关。具体应用需求如下:

· 实现VRRP备份组中三台设备都可以转发报文,实现流量负载分担,充分利用网关资源;

· 当Device A、Device B或Device C自身或其上行接口出现故障时,Host A、Host B和Host C可以通过其他正常运行的设备继续通信,避免通信中断;当Device A、Device B或Device C故障恢复后,继续承担网关功能。

图3 VRRP负载均衡模式配置组网图

5.2 配置思路

· 为了使Device A优先与Device B和Device C被选举为VRRP备份组的Master设备,需要为其配置高于Device B和Device C的优先级;为了使Device B优先于Device C被选举为VRRP备份组的Master设备,需要为其配置高于Device C的优先级;

· 为了避免由于故障造成VRRP备份组中的角色频繁发生变化,可以配置一定的抢占延迟时间;

· 在Device A、Device B和Device C上配置虚拟转发器通过Track项监视上行接口的状态。当上行接口出现故障时,降低该接口所在设备虚拟转发器的权重,以便其他设备接管该设备的转发任务,避免通信中断;

· 为了保证原Master设备故障恢复后,能再次抢占成为Master,需要配置VRRP备份组工作在抢占模式。
5.3 使用版本

本举例是在S12500-CMW710-R7328P02版本上进行配置和验证的。
5.4 配置注意事项

· 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)。

· IPv4 VRRP既可以使用VRRPv2版本,也可以使用VRRPv3版本(缺省情况使用VRRPv3)。请确保IPv4 VRRP备份组中的所有路由器上配置的IPv4 VRRP版本一致,否则VRRP备份组无法正常工作。

· 删除IP地址拥有者上的VRRP备份组,将导致地址冲突。建议先修改配置了VRRP备份组的接口的IP地址,再删除该接口上的VRRP备份组,以避免地址冲突。

· VRRP工作在负载均衡模式时,备份组的虚拟IP地址和接口的IP地址不能相同,否则VRRP负载均衡功能将无法正常工作。

· 当监视的上行链路出现故障时,配置的权重降低数额需保证VF Owner的权重低于失效下限,即权重降低的数额大于245,其它的虚拟转发器才能接替VF Owner成为AVF。

· 对于同一个VRRP备份组的成员设备,必须保证备份组虚拟路由器的IP地址配置完全一样。

· 用户在配置降低权重幅度时,需要确保降低后的优先级比VRRP备份组内其他设备的优先级要低,确保VRRP备份组内有其他设备被选为Master。
5.5 配置步骤
5.5.1 Device A的配置

(1) 配置接口

# 配置接口。

system-view

[DeviceA] interface ten-gigabitethernet 3/0/1

[DeviceA-Ten-GigabitEthernet3/0/1] undo shutdown

[DeviceA-Ten-GigabitEthernet3/0/1] quit

[DeviceA] vlan 2

[DeviceA-vlan2] port ten-gigabitethernet 3/0/1

[DeviceA-vlan2] quit

[DeviceA] interface vlan-interface 2

[DeviceA-Vlan-interface2] undo shutdown

[DeviceA-Vlan-interface2] ip address 10.1.1.2 24

[DeviceA-Vlan-interface2] quit

[DeviceA] vlan 3

[DeviceA-vlan3] port ten-gigabitethernet 3/0/2

[DeviceA-vlan3] quit

[DeviceA] interface vlan-interface 3

[DeviceA-Vlan-interface3] quit

(2) 配置VRRP

# 配置VRRP工作在负载均衡模式。

[DeviceA] vrrp mode load-balance

# 创建VRRP备份组1,并配置VRRP备份组1的虚拟IP地址为10.1.1.1。

[DeviceA] interface vlan-interface 2

[DeviceA-Vlan-interface2] vrrp vrid 1 virtual-ip 10.1.1.1

# 配置Device A在VRRP备份组1中的优先级为120,高于Device B的优先级110和Device C的优先级100,以保证Device A成为Master。

[DeviceA-Vlan-interface2] vrrp vrid 1 priority 120

# 配置Device A工作在抢占方式,以保证Device A故障恢复后,能再次抢占成为Master,即只要Device A正常工作,Device A就会成为Master。为了避免频繁地进行状态切换,配置抢占延迟时间为5秒。

[DeviceA-Vlan-interface2] vrrp vrid 1 preempt-mode delay 5

[DeviceA-Vlan-interface2] quit

(3) 配置Track

# 创建和VLAN接口3关联的Track项1。如果Track项的状态为Negative,则说明Device A的上行接口出现故障。

[DeviceA] track 1 interface vlan-interface 3

# 配置虚拟转发器监视Track项1。Track项的状态为Negative时,降低Device A上虚拟转发器的权重,使其低于失效下限10,即权重降低的数额大于245,以便其他设备接替Device A的转发任务。本例中,配置虚拟转发器权重降低数额为250。

[DeviceA] interface vlan-interface 2

[DeviceA-Vlan-interface2] vrrp vrid 1 weight track 1 reduced 250

[DeviceA-Vlan-interface2] quit
5.5.2 Device B的配置

(1) 配置接口

# 配置接口。

system-view

[DeviceB] interface ten-gigabitethernet 3/0/1

[DeviceB-Ten-GigabitEthernet3/0/1] undo shutdown

[DeviceB-Ten-GigabitEthernet3/0/1] quit

[DeviceB] vlan 2

[DeviceB-vlan2] port ten-gigabitethernet 3/0/1

[DeviceB-vlan2] quit

[DeviceB] interface vlan-interface 2

[DeviceB-Vlan-interface2] undo shutdown

[DeviceB-Vlan-interface2] ip address 10.1.1.3 24

[DeviceB-Vlan-interface2] quit

[DeviceB] vlan 3

[DeviceB-vlan3] port ten-gigabitethernet 3/0/2

[DeviceB-vlan3] quit

[DeviceB] interface vlan-interface 3

[DeviceB-Vlan-interface3] quit

(2) 配置VRRP

# 配置VRRP工作在负载均衡模式。

[DeviceB] vrrp mode load-balance

# 创建VRRP备份组1,并配置VRRP备份组1的虚拟IP地址为10.1.1.1。

[DeviceB] interface vlan-interface 2

[DeviceB-Vlan-interface2] vrrp vrid 1 virtual-ip 10.1.1.1

# 配置Device B在VRRP备份组1中的优先级为110,高于Device C的优先级,以保证Device A出现故障时,Device B成为Master。

[DeviceB-Vlan-interface2] vrrp vrid 1 priority 110

# 配置Device B工作在抢占方式,抢占延迟时间为5秒。

[DeviceB-Vlan-interface2] vrrp vrid 1 preempt-mode delay 5

[DeviceB-Vlan-interface2] quit

(3) 配置Track

# 创建和VLAN接口3关联的Track项1。如果Track项的状态为Negative,则说明Device B的上行接口出现故障。

[DeviceB] track 1 interface vlan-interface 3

# 配置虚拟转发器监视Track项1。Track项的状态为Negative时,降低Device B上虚拟转发器的权重,使其低于失效下限10,即权重降低的数额大于245,以便其他设备接替Device B的转发任务。本例中,配置虚拟转发器权重降低数额为250。

[DeviceB] interface vlan-interface 2

[DeviceB-Vlan-interface2] vrrp vrid 1 weight track 1 reduced 250

[DeviceB-Vlan-interface2] quit
5.5.3 Device C的配置

(1) 配置接口

# 配置接口。

system-view

[DeviceC] interface ten-gigabitethernet 3/0/1

[DeviceC-Ten-GigabitEthernet3/0/1] undo shutdown

[DeviceC-Ten-GigabitEthernet3/0/1] quit

[DeviceC] vlan 2

[DeviceC-vlan2] port ten-gigabitethernet 3/0/1

[DeviceC-vlan2] quit

[DeviceC] interface vlan-interface 2

[DeviceC-Vlan-interface2] undo shutdown

[DeviceC-Vlan-interface2] ip address 10.1.1.4 24

[DeviceC-Vlan-interface2] quit

[DeviceC] vlan 3

[DeviceC-vlan3] port ten-gigabitethernet 3/0/2

[DeviceC-vlan3] quit

[DeviceC] interface vlan-interface 3

[DeviceC-Vlan-interface3] quit

(2) 配置VRRP

# 配置VRRP工作在负载均衡模式。

[DeviceA] vrrp mode load-balance

# 创建VRRP备份组1,并配置VRRP备份组1的虚拟IP地址为10.1.1.1。

[DeviceC] interface vlan-interface 2

[DeviceC-Vlan-interface2] vrrp vrid 1 virtual-ip 10.1.1.1

# 配置Device C工作在抢占方式,抢占延迟时间为5秒。

[DeviceC-Vlan-interface2] vrrp vrid 1 preempt-mode delay 5

[DeviceC-Vlan-interface2] quit

(3) 配置Track

# 创建和VLAN接口3关联的Track项1。如果Track项的状态为Negative,则说明Device C的上行接口出现故障。

[DeviceC] track 1 interface vlan-interface 3

# 配置虚拟转发器监视Track项1。Track项的状态为Negative时,降低Device C上虚拟转发器的权重,使其低于失效下限10,即权重降低的数额大于245,以便其他设备接替Device C的转发任务。本例中,配置虚拟转发器权重降低数额为250。

[DeviceC] interface vlan-interface 2

[DeviceC-Vlan-interface2] vrrp vrid 1 weight track 1 reduced 250

[DeviceC-Vlan-interface2] quit
5.5.4 验证配置

(1) 配置完成后,在Host A上可以ping通外网,通过display vrrp verbose命令查看配置后的结果

# 显示Device A上VRRP备份组的详细信息。

[DeviceA] display vrrp verbose

IPv4 Virtual Device Information:

Running Mode : Load Balance

Total number of virtual routers : 1

Interface Vlan-interface2

VRID : 1 Adver Timer : 100

Admin Status : Up State : Master

Config Pri : 120 Running Pri : 120

Preempt Mode : Yes Delay Time : 5

Auth Type : None

Virtual IP : 10.1.1.1

Member IP List : 10.1.1.2 (Local, Master)

10.1.1.3 (Backup)

10.1.1.4 (Backup)

Forwarder Information: 3 Forwarders 1 Active

Config Weight : 255

Running Weight : 255

Forwarder 01

State : Active

Virtual MAC : 000f-e2ff-0011 (Owner)

Owner ID : 0000-5e01-1101

Priority : 255

Active : local

Forwarder 02

State : Listening

Virtual MAC : 000f-e2ff-0012 (Learnt)

Owner ID : 0000-5e01-1103

Priority : 127

Active : 10.1.1.3

Forwarder 03

State : Listening

Virtual MAC : 000f-e2ff-0013 (Learnt)

Owner ID : 0000-5e01-1105

Priority : 127

Active : 10.1.1.4

Forwarder Weight Track Information:

Track Object : 1 State : Positive Weight Reduced : 250

# 显示Device B上VRRP备份组的详细信息。

[DeviceB] display vrrp verbose

IPv4 Virtual Device Information:

Running Mode : Load Balance

Total number of virtual routers : 1

Interface Vlan-interface2

VRID : 1 Adver Timer : 100

Admin Status : Up State : Backup

Config Pri : 110 Running Pri : 110

Preempt Mode : Yes Delay Time : 5

Auth Type : None

Virtual IP : 10.1.1.1

Member IP List : 10.1.1.3 (Local, Backup)

10.1.1.2 (Master)

10.1.1.4 (Backup)

Forwarder Information: 3 Forwarders 1 Active

Config Weight : 255

Running Weight : 255

Forwarder 01

State : Listening

Virtual MAC : 000f-e2ff-0011 (Learnt)

Owner ID : 0000-5e01-1101

Priority : 127

Active : 10.1.1.2

Forwarder 02

State : Active

Virtual MAC : 000f-e2ff-0012 (Owner)

Owner ID : 0000-5e01-1103

Priority : 255

Active : local

Forwarder 03

State : Listening

Virtual MAC : 000f-e2ff-0013 (Learnt)

Owner ID : 0000-5e01-1105

Priority : 127

Active : 10.1.1.4

Forwarder Weight Track Information:

Track Object : 1 State : Positive Weight Reduced : 250

# 显示Device C上VRRP备份组的详细信息。

[DeviceC] display vrrp verbose

IPv4 Virtual Device Information:

Running Mode : Load Balance

Total number of virtual routers : 1

Interface Vlan-interface2

VRID : 1 Adver Timer : 100

Admin Status : Up State : Backup

Config Pri : 100 Running Pri : 100

Preempt Mode : Yes Delay Time : 5

Auth Type : None

Virtual IP : 10.1.1.1

Member IP List : 10.1.1.4 (Local, Backup)

10.1.1.2 (Master)

10.1.1.3 (Backup)

Forwarder Information: 3 Forwarders 1 Active

Config Weight : 255

Running Weight : 255

Forwarder 01

State : Listening

Virtual MAC : 000f-e2ff-0011 (Learnt)

Owner ID : 0000-5e01-1101

Priority : 127

Active : 10.1.1.2

Forwarder 02

State : Listening

Virtual MAC : 000f-e2ff-0012 (Learnt)

Owner ID : 0000-5e01-1103

Priority : 127

Active : 10.1.1.3

Forwarder 03

State : Active

Virtual MAC : 000f-e2ff-0013 (Owner)

Owner ID : 0000-5e01-1105

Priority : 255

Active : local

Forwarder Weight Track Information:

Track Object : 1 State : Positive Weight Reduced : 250

以上显示信息表示在VRRP备份组1中Device A为Master,Device B和Device C 为Backup。Device A、Device B和Device C上各自存在一个AVF,并存在作为备份的两个LVF。

(2) Device A的上行接口(VLAN接口3)出现故障后

# 显示Device A上VRRP备份组的详细信息。

[DeviceA] display vrrp verbose

IPv4 Virtual Device Information:

Running Mode : Load Balance

Total number of virtual routers : 1

Interface Vlan-interface2

VRID : 1 Adver Timer : 100

Admin Status : Up State : Master

Config Pri : 120 Running Pri : 120

Preempt Mode : Yes Delay Time : 5

Auth Type : None

Virtual IP : 10.1.1.1

Member IP List : 10.1.1.2 (Local, Master)

10.1.1.3 (Backup)

10.1.1.4 (Backup)

Forwarder Information: 3 Forwarders 0 Active

Config Weight : 255

Running Weight : 5

Forwarder 01

State : Initialize

Virtual MAC : 000f-e2ff-0011 (Owner)

Owner ID : 0000-5e01-1101

Priority : 0

Active : 10.1.1.4

Forwarder 02

State : Initialize

Virtual MAC : 000f-e2ff-0012 (Learnt)

Owner ID : 0000-5e01-1103

Priority : 0

Active : 10.1.1.3

Forwarder 03

State : Initialize

Virtual MAC : 000f-e2ff-0013 (Learnt)

Owner ID : 0000-5e01-1105

Priority : 0

Active : 10.1.1.4

Forwarder Weight Track Information:

Track Object : 1 State : Negative Weight Reduced : 250

# 显示Device C上VRRP备份组的详细信息。

[DeviceC] display vrrp verbose

IPv4 Virtual Device Information:

Running Mode : Load Balance

Total number of virtual routers : 1

Interface Vlan-interface2

VRID : 1 Adver Timer : 100

Admin Status : Up State : Backup

Config Pri : 100 Running Pri : 100

Preempt Mode : Yes Delay Time : 5

Auth Type : None

Become Master : 3550ms left

Virtual IP : 10.1.1.1

Member IP List : 10.1.1.4 (Local, Backup)

10.1.1.2 (Master)

10.1.1.3 (Backup)

Forwarder Information: 3 Forwarders 2 Active

Config Weight : 255

Running Weight : 255

Forwarder 01

State : Active

Virtual MAC : 000f-e2ff-0011 (Take Over)

Owner ID : 0000-5e01-1101

Priority : 85

Active : local

Redirect Time : 93 secs

Time-out Time : 1293 secs

Forwarder 02

State : Listening

Virtual MAC : 000f-e2ff-0012 (Learnt)

Owner ID : 0000-5e01-1103

Priority : 85

Active : 10.1.1.3

Forwarder 03

State : Active

Virtual MAC : 000f-e2ff-0013 (Owner)

Owner ID : 0000-5e01-1105

Priority : 255

Active : local

Forwarder Weight Track Information:

Track Object : 1 State : Positive Weight Reduced : 250

以上显示信息表示Device A的上行接口出现故障后,Device A上虚拟转发器的权重降低为5,低于失效下限。Device A上所有虚拟转发器的状态均变为Initialized,不能再用于转发。Device C成为虚拟MAC地址000f-e2ff-0011对应虚拟转发器的AVF,接管Device A的转发任务。

# Timeout Timer超时后(约1800秒后),查看Device C上VRRP备份组的详细信息。

[DeviceC] display vrrp verbose

IPv4 Virtual Device Information:

Running Mode : Load Balance

Total number of virtual routers : 1

Interface Vlan-interface2

VRID : 1 Adver Timer : 100

Admin Status : Up State : Backup

Config Pri : 100 Running Pri : 100

Preempt Mode : Yes Delay Time : 5

Auth Type : None

Become Master : 3550ms left

Virtual IP : 10.1.1.1

Member IP List : 10.1.1.4 (Local, Backup)

10.1.1.2 (Master)

10.1.1.3 (Backup)

Forwarder Information: 2 Forwarders 1 Active

Config Weight : 255

Running Weight : 255

Forwarder 02

State : Listening

Virtual MAC : 000f-e2ff-0012 (Learnt)

Owner ID : 0000-5e01-1103

Priority : 127

Active : 10.1.1.3

Forwarder 03

State : Active

Virtual MAC : 000f-e2ff-0013 (Owner)

Owner ID : 0000-5e01-1105

Priority : 255

Active : local

Forwarder Weight Track Information:

Track Object : 1 State : Positive Weight Reduced : 250

以上显示信息表示,Timeout Timer超时后,删除虚拟MAC地址000f-e2ff-0011对应的虚拟转发器,不再转发目的MAC地址为该MAC的报文。

(3) Device A出现故障后

# 显示Device B上VRRP备份组的详细信息。

[DeviceB] display vrrp verbose

IPv4 Standby Information:

Run Mode : Load Balance

Run Method : Virtual MAC

Total number of virtual routers : 1

Interface Vlan-interface2

VRID : 1 Adver Timer : 1

Admin Status : Up State : Master

Config Pri : 110 Running Pri : 110

Preempt Mode : Yes Delay Time : 5

Auth Type : None

Virtual IP : 10.1.1.1

Member IP List : 10.1.1.3 (Local, Master)

10.1.1.4 (Backup)

Forwarder Information: 2 Forwarders 1 Active

Config Weight : 255

Running Weight : 255

Forwarder 02

State : Active

Virtual MAC : 000f-e2ff-0012 (Owner)

Owner ID : 0000-5e01-1103

Priority : 255

Active : local

Forwarder 03

State : Listening

Virtual MAC : 000f-e2ff-0013 (Learnt)

Owner ID : 0000-5e01-1105

Priority : 127

Active : 10.1.1.4

Forwarder Weight Track Information:

Track Object : 1 State : Positive Weight Reduced : 250

以上显示信息表示Device A出现故障后,Device B的优先级高于Device C,将抢占成为Master。

5.5.5 配置文件

· Device A的配置文件:

#

vrrp mode load-balance

#

vlan 2 to 3

#

interface Vlan-interface2

ip address 10.1.1.2 255.255.255.0

vrrp vrid 1 virtual-ip 10.1.1.1

vrrp vrid 1 priority 120

vrrp vrid 1 preempt-mode delay 5

vrrp vrid 1 weight track 1 reduced 250

#

interface Vlan-interface3

#

interface Ten-GigabitEthernet3/0/1

port link-mode bridge

port access vlan 2

#

interface Ten-GigabitEthernet3/0/2

port link-mode bridge

port access vlan 3

#

track 1 interface vlan-interface3

 

· Device B的配置文件:

#

vrrp mode load-balance

#

vlan 2 to 3

#

interface Vlan-interface2

ip address 10.1.1.3 255.255.255.0

vrrp vrid 1 virtual-ip 10.1.1.1

vrrp vrid 1 priority 110

vrrp vrid 1 preempt-mode delay 5

vrrp vrid 1 weight track 1 reduced 250

#

interface Vlan-interface3

#

interface Ten-GigabitEthernet3/0/1

port link-mode bridge

port access vlan 2

#

interface Ten-GigabitEthernet3/0/2

port link-mode bridge

port access vlan 3

#

track 1 interface vlan-interface3

 

· Device C的配置文件:

#

vrrp mode load-balance

#

vlan 2 to 3

#

interface Vlan-interface2

ip address 10.1.1.4 255.255.255.0

vrrp vrid 1 virtual-ip 10.1.1.1

vrrp vrid 1 preempt-mode delay 5

vrrp vrid 1 weight track 1 reduced 250

#

interface Vlan-interface3

#

interface Ten-GigabitEthernet3/0/1

port link-mode bridge

port access vlan 2

#

interface Ten-GigabitEthernet3/0/2

port link-mode bridge

port access vlan 3

#

track 1 interface vlan-interface3

#
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