VRRP作为网关可靠性的常用方法,基本思路是,两台路由器组成一个虚拟路由器,通过VRRP协议对内网呈现一个虚拟的网关ip, 以便让局域网内部的终端通过这个虚拟网关对外进行通信。
VRRP的最简单配置就是一条命令,分别在两个路由器的对内网端口上配置。
vrrp vrid 1 virtual-ip x
VRRP也可以实现为负载均衡的配置,实现两个路由器同时转发流量。
VRRP也可以配置监测上行端口的拥塞情况,作为VRRP主动调整自己的优先级的依据,从而让两个路由器协商出更好的网关。
#
interface GigabitEthernet0/0/1
ip address 192.168.0.10 255.255.255.0
vrrp vrid 1 virtual-ip 192.168.0.1
#
#
interface GigabitEthernet0/0/2
ip address 192.168.0.20 255.255.255.0
vrrp vrid 1 virtual-ip 192.168.0.1
#
R3上配置到192.168.0.0 网段的两条等价路由
#
ip route-static 192.168.0.0 255.255.255.0 2.0.0.10
ip route-static 192.168.0.0 255.255.255.0 3.0.0.10
#
在R1上查看VRRP的运行结果:
<Huawei>display vrrp 1
GigabitEthernet0/0/1 | Virtual Router 1
State : Master
Virtual IP : 192.168.0.1
Master IP : 192.168.0.10
PriorityRun : 100
PriorityConfig : 100
MasterPriority : 100
Preempt : YES Delay Time : 0 s
TimerRun : 1 s
TimerConfig : 1 s
Auth type : NONE
Virtual MAC : 0000-5e00-0101
Check TTL : YES
Config type : normal-vrrp
Create time : 2017-10-22 17:21:39 UTC-08:00
Last change time : 2017-10-22 17:21:43 UTC-08:00
<Huawei>
<Huawei>display vrrp brief
VRID State Interface Type Virtual IP
----------------------------------------------------------------
1 Master GE0/0/1 Normal 192.168.0.1
----------------------------------------------------------------
Total:1 Master:1 Backup:0 Non-active:0
<Huawei>
在R2上查看VRRP的运行结果
<Huawei>display vrrp
GigabitEthernet0/0/2 | Virtual Router 1
State : Backup
Virtual IP : 192.168.0.1
Master IP : 192.168.0.10
PriorityRun : 100
PriorityConfig : 100
MasterPriority : 100
Preempt : YES Delay Time : 0 s
TimerRun : 1 s
TimerConfig : 1 s
Auth type : NONE
Virtual MAC : 0000-5e00-0101
Check TTL : YES
Config type : normal-vrrp
Create time : 2017-10-22 17:34:29 UTC-08:00
Last change time : 2017-10-22 17:34:29 UTC-08:00
<Huawei>
<Huawei>display vrrp brief
VRID State Interface Type Virtual IP
----------------------------------------------------------------
1 Backup GE0/0/2 Normal 192.168.0.1
----------------------------------------------------------------
Total:1 Master:0 Backup:1 Non-active:0
<Huawei>
从上述结果看,左边的路由器是VRRP的主路由器。
查看R2上VRRP状态
<Huawei>display vrrp brief
VRID State Interface Type Virtual IP
----------------------------------------------------------------
1 Master GE0/0/2 Normal 192.168.0.1
----------------------------------------------------------------
Total:1 Master:1 Backup:0 Non-active:0
<Huawei>display vrrp
GigabitEthernet0/0/2 | Virtual Router 1
State : Master
Virtual IP : 192.168.0.1
Master IP : 192.168.0.20
PriorityRun : 100
PriorityConfig : 100
MasterPriority : 100
Preempt : YES Delay Time : 0 s
TimerRun : 1 s
TimerConfig : 1 s
Auth type : NONE
Virtual MAC : 0000-5e00-0101
Check TTL : YES
Config type : normal-vrrp
Create time : 2017-10-22 17:34:29 UTC-08:00
Last change time : 2017-10-22 17:58:11 UTC-08:00
<Huawei>
验证从PC1 ping PC3,可见可以ping 通
PC>ping 10.0.0.102
Ping 10.0.0.102: 32 data bytes, Press Ctrl_C to break
Request timeout!
From 10.0.0.102: bytes=32 seq=2 ttl=126 time=187 ms
From 10.0.0.102: bytes=32 seq=3 ttl=126 time=94 ms
From 10.0.0.102: bytes=32 seq=4 ttl=126 time=94 ms
From 10.0.0.102: bytes=32 seq=5 ttl=126 time=109 ms
--- 10.0.0.102 ping statistics ---
5 packet(s) transmitted
4 packet(s) received
20.00% packet loss
round-trip min/avg/max = 0/121/187 ms
PC>
原创声明:本文系作者授权腾讯云开发者社区发表,未经许可,不得转载。
如有侵权,请联系 cloudcommunity@tencent.com 删除。
原创声明:本文系作者授权腾讯云开发者社区发表,未经许可,不得转载。
如有侵权,请联系 cloudcommunity@tencent.com 删除。