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配置VRRP主备备份

2021-01-19 10:01:30 作者：互联网

配置思路

采用VRRP主备备份实现网关冗余备份，配置思路如下： 1、配置各设备接口IP地址及路由协议，使各设备间网络层连通。 2、在SwitchA和SwitchB上配置VRRP备份组。其中： SwitchA上配置较高优先级和20秒抢占延时，作为Master设备承担流量转发； SwitchB上配置较低优先级，作为备用交换机，实现网关冗余备份。

操作步骤

配置设备间的网络互连

# 配置设备各接口的IP地址，以SwitchA为例。SwitchB和SwitchC的配置与SwitchA类似，详见配置文件。

<HUAWEI> system-view
[HUAWEI] sysname SwitchA
[SwitchA] vlan batch 100 300
[SwitchA] interface gigabitethernet 1/0/1
[SwitchA-GigabitEthernet1/0/1] port link-type hybrid
[SwitchA-GigabitEthernet1/0/1] port hybrid pvid vlan 300
[SwitchA-GigabitEthernet1/0/1] port hybrid untagged vlan 300
[SwitchA-GigabitEthernet1/0/1] quit
[SwitchA] interface gigabitethernet 1/0/2
[SwitchA-GigabitEthernet1/0/2] port link-type hybrid
[SwitchA-GigabitEthernet1/0/2] port hybrid pvid vlan 100
[SwitchA-GigabitEthernet1/0/2] port hybrid untagged vlan 100
[SwitchA-GigabitEthernet1/0/2] quit
[SwitchA] interface vlanif 100
[SwitchA-Vlanif100] ip address 10.1.1.1 24
[SwitchA-Vlanif100] quit
[SwitchA] interface vlanif 300
[SwitchA-Vlanif300] ip address 192.168.1.1 24
[SwitchA-Vlanif300] quit

# 配置Switch的二层转发功能。

<HUAWEI> system-view
[HUAWEI] sysname Switch
[Switch] vlan 100
[Switch-vlan100] quit
[Switch] interface gigabitethernet 1/0/1
[Switch-GigabitEthernet1/0/1] port link-type hybrid
[Switch-GigabitEthernet1/0/1] port hybrid pvid vlan 100
[Switch-GigabitEthernet1/0/1] port hybrid untagged vlan 100
[Switch-GigabitEthernet1/0/1] quit
[Switch] interface gigabitethernet 1/0/2
[Switch-GigabitEthernet1/0/2] port link-type hybrid
[Switch-GigabitEthernet1/0/2] port hybrid pvid vlan 100
[Switch-GigabitEthernet1/0/2] port hybrid untagged vlan 100
[Switch-GigabitEthernet1/0/2] quit

# 配置SwitchA、SwitchB和SwitchC间采用OSPF协议进行互连。以SwitchA为例，SwitchB和SwitchC的配置与SwitchA类似，详见配置文件。

[SwitchA] ospf 1
[SwitchA-ospf-1] area 0
[SwitchA-ospf-1-area-0.0.0.0] network 10.1.1.0 0.0.0.255
[SwitchA-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255
[SwitchA-ospf-1-area-0.0.0.0] quit
[SwitchA-ospf-1] quit

配置VRRP备份组

# 在SwitchA上创建VRRP备份组1，配置SwitchA在该备份组中的优先级为120，并配置抢占时间为20秒。

[SwitchA] interface vlanif 100
[SwitchA-Vlanif100] vrrp vrid 1 virtual-ip 10.1.1.111
[SwitchA-Vlanif100] vrrp vrid 1 priority 120                  //设备在VRRP备份组中的优先级缺省为100，修改Master设备的优先级大于Backup设备
[SwitchA-Vlanif100] vrrp vrid 1 preempt-mode timer delay 20   //设备在VRRP备份组中缺省采用立即抢占方式。修改Master设备的延迟抢占时间，以避免在网络环境不稳定时，由于双方频繁抢占而导致流量中断的问题
[SwitchA-Vlanif100] quit

# 在SwitchB上创建VRRP备份组1，其在该备份组中的优先级采用缺省值100（不需要配置）。

[SwitchB] interface vlanif 100
[SwitchB-Vlanif100] vrrp vrid 1 virtual-ip 10.1.1.111
[SwitchB-Vlanif100] quit

验证配置结果

# 完成上述配置以后，在SwitchA和SwitchB上分别执行display vrrp命令，可以看到SwitchA在备份组中的状态为Master，SwitchB在备份组中的状态为Backup。

[SwitchA] display vrrp
  Vlanif100 | Virtual Router 1
    State : Master
    Virtual IP : 10.1.1.111
    Master IP : 10.1.1.1
    PriorityRun : 120
    PriorityConfig : 120                                                        
    MasterPriority : 120                                                        
    Preempt : YES   Delay Time : 20 s
    TimerRun : 1 s
    TimerConfig : 1 s
    Auth type : NONE                                                            
    Virtual MAC : 0000-5e00-0101                                                
    Check TTL : YES                                                             
    Config type : normal-vrrp                                                   
    Backup-forward : disabled
    Create time : 2012-01-12 20:15
    Last change time : 2012-01-12 20:15

[SwitchB] display vrrp
  Vlanif100 | Virtual Router 1
    State : Backup
    Virtual IP : 10.1.1.111
    Master IP : 10.1.1.1
    PriorityRun : 100
    PriorityConfig : 100                                                        
    MasterPriority : 120                                                        
    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                                                   
    Backup-forward : disabled
    Create time : 2012-01-12 20:15
    Last change time : 2012-01-12 20:15

# 在SwitchA和SwitchB上执行display ip routing-table命令，SwitchA上可以看到路由表中有一条目的地址为虚拟IP地址的直连路由，而SwitchB上该路由为OSPF路由。SwitchA和SwitchB上的显示信息如下。

[SwitchA] display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------  
Routing Tables: Public                                                          
         Destinations : 9       Routes : 10                                    
                                                                                
Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface      
                                                                                
     10.1.1.0/24    Direct   0     0         D      10.1.1.1        Vlanif100
     10.1.1.1/32    Direct   0     0         D      127.0.0.1       Vlanif100
 10.1.1.111/32    Direct  0     0         D      127.0.0.1      Vlanif100
     127.0.0.0/8    Direct   0    0          D      127.0.0.1       InLoopBack0
    127.0.0.1/32    Direct   0    0          D      127.0.0.1       InLoopBack0
   172.16.1.0/24    OSPF     10   2          D      192.168.1.2     Vlanif300
  192.168.1.0/24    Direct   0    0          D      192.168.1.1     Vlanif300
  192.168.1.1/32    Direct   0    0          D      127.0.0.1       Vlanif300
  192.168.2.0/24    OSPF     10   2          D      10.1.1.2        Vlanif100
                    OSPF     10   2          D      192.168.1.2     Vlanif300

[SwitchB] display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------  
Routing Tables: Public                                                          
         Destinations : 9       Routes : 10                                    
                                                                                
Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface      
                                                                                
     10.1.1.0/24    Direct   0     0         D     10.1.1.2        Vlanif100
     10.1.1.2/32    Direct   0     0         D     127.0.0.1       Vlanif100
 10.1.1.111/32    OSPF    10    2         D     10.1.1.1       Vlanif100
     127.0.0.0/8    Direct   0     0         D     127.0.0.1       InLoopBack0
    127.0.0.1/32    Direct   0     0         D     127.0.0.1       InLoopBack0
   172.16.1.0/24    OSPF     10    2         D     192.168.2.2     Vlanif200
  192.168.1.0/24    OSPF     10    2         D     10.1.1.1        Vlanif100
                    OSPF     10    2         D     192.168.2.2     Vlanif200
  192.168.2.0/24    Direct   0     0         D     192.168.2.1     Vlanif200
  192.168.2.1/32    Direct   0     0         D     127.0.0.1       Vlanif200

# 在SwitchA的接口GE1/0/2上执行shutdown命令，模拟SwitchA出现故障。

[SwitchA] interface gigabitethernet 1/0/2
[SwitchA-GigabitEthernet1/0/2] shutdown
[SwitchA-GigabitEthernet1/0/2] quit

# 在SwitchB上执行display vrrp命令查看VRRP状态信息，可以看到SwitchB的状态是Master。

[SwitchB] display vrrp
  Vlanif100 | Virtual Router 1
    State : Master
    Virtual IP : 10.1.1.111
    Master IP : 10.1.1.2
    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                                                   
    Backup-forward : disabled
    Create time : 2012-01-12 20:15
    Last change time : 2012-01-12 20:15

# 在SwitchA的接口GE1/0/2上执行undo shutdown命令。

[SwitchA] interface gigabitethernet 1/0/2
[SwitchA-GigabitEthernet1/0/2] undo shutdown
[SwitchA-GigabitEthernet1/0/2] quit

# 等待20秒后，在SwitchA上执行display vrrp命令查看VRRP状态信息，可以看到SwitchA的状态恢复成Master。

[SwitchA] display vrrp
  Vlanif100 | Virtual Router 1
    State : Master
    Virtual IP : 10.1.1.111
    Master IP : 10.1.1.1
    PriorityRun : 120
    PriorityConfig : 120                                                        
    MasterPriority : 120                                                        
    Preempt : YES   Delay Time : 20 s
    TimerRun : 1 s
    TimerConfig : 1 s
    Auth type : NONE                                                            
    Virtual MAC : 0000-5e00-0101                                                
    Check TTL : YES                                                             
    Config type : normal-vrrp                                                   
    Backup-forward : disabled
    Create time : 2012-01-12 20:15
    Last change time : 2012-01-12 20:15

配置文件

SwitchA的配置文件

#
sysname SwitchA
#
vlan batch 100 300
#
interface Vlanif100
 ip address 10.1.1.1 255.255.255.0
 vrrp vrid 1 virtual-ip 10.1.1.111
 vrrp vrid 1 priority 120
 vrrp vrid 1 preempt-mode timer delay 20
#
interface Vlanif300
 ip address 192.168.1.1 255.255.255.0
#
interface GigabitEthernet1/0/1
 port link-type hybrid
 port hybrid pvid vlan 300
 port hybrid untagged vlan 300
#
interface GigabitEthernet1/0/2
 port link-type hybrid
 port hybrid pvid vlan 100
 port hybrid untagged vlan 100
#
ospf 1
 area 0.0.0.0
  network 10.1.1.0 0.0.0.255
  network 192.168.1.0 0.0.0.255
#
return

SwitchB的配置文件

#
sysname SwitchB
#
vlan batch 100 200
#
interface Vlanif100
 ip address 10.1.1.2 255.255.255.0
 vrrp vrid 1 virtual-ip 10.1.1.111
#
interface Vlanif200
 ip address 192.168.2.1 255.255.255.0
#
interface GigabitEthernet1/0/1
 port link-type hybrid
 port hybrid pvid vlan 200
 port hybrid untagged vlan 200
#
interface GigabitEthernet1/0/2
 port link-type hybrid
 port hybrid pvid vlan 100
 port hybrid untagged vlan 100
#
ospf 1
 area 0.0.0.0
  network 10.1.1.0 0.0.0.255
  network 192.168.2.0 0.0.0.255
#
return

SwitchC的配置文件

#
sysname SwitchC
#
vlan batch 200 300 400
#
interface Vlanif200
 ip address 192.168.2.2 255.255.255.0
#
interface Vlanif300
 ip address 192.168.1.2 255.255.255.0
#
interface Vlanif400
 ip address 172.16.1.1 255.255.255.0
#
interface GigabitEthernet1/0/1
 port link-type hybrid
 port hybrid pvid vlan 300
 port hybrid untagged vlan 300
#
interface GigabitEthernet1/0/2
 port link-type hybrid
 port hybrid pvid vlan 200
 port hybrid untagged vlan 200
#
interface GigabitEthernet1/0/3
 port link-type hybrid
 port hybrid pvid vlan 400
 port hybrid untagged vlan 400
#
ospf 1
 area 0.0.0.0
  network 172.16.1.0 0.0.0.255
  network 192.168.1.0 0.0.0.255
  network 192.168.2.0 0.0.0.255
#
return

Switch的配置文件

#
sysname Switch
#
vlan batch 100
#
interface GigabitEthernet1/0/1
 port link-type hybrid
 port hybrid pvid vlan 100
 port hybrid untagged vlan 100
#
interface GigabitEthernet1/0/2
 port link-type hybrid
 port hybrid pvid vlan 100
 port hybrid untagged vlan 100
#
return

标签：10.1,备份,vlan,hybrid,VRRP,主备,100,SwitchA,port
来源： https://www.cnblogs.com/cxyc005/p/14296406.html