虚拟路由冗余协议主要解决中网络网关的单点故障,在vrrp默认配置情况下,所有数据包都是交给主设备来处理的,只有当主设备出现故障时备用设备才会处理数据,这样导致备用设备长时间闲置,数据全部由主设备处理负荷大,导致数据处理不及时,出现延时现象。
vrrp是企业中提供网络高可靠性的主要协议,主要解决网关单点故障引起的网络中断事故,通过热备份路由器的方式,当网络中路由设备故障时,能自动在线切换,保障通信的连续与稳定。
1、vrrp虚拟路由网关基本配置
2、配置如下:
①、配置PC1的ip、网关、子网掩码
②、SW3配置
[sw3]inter Ethernet 0/0/1
[sw3-Ethernet0/0/1]port link-type trunk
[sw3-Ethernet0/0/1]port trunk allow-pass vlan all
[sw3-Ethernet0/0/1]quit
[sw3]inter Ethernet 0/0/2
[sw3-Ethernet0/0/2]port link-type trunk
[sw3-Ethernet0/0/2]port trunk allow-pass vlan all
[sw3-Ethernet0/0/2]quit
[sw3]inter Ethernet 0/0/3
[sw3-Ethernet0/0/3]port link-type access
[sw3-Ethernet0/0/3]port default vlan 10
[sw3-Ethernet0/0/3]quit
③、sw1 配置
[sw1]un info en Info: Information center is disabled. [sw1]vlan 10 [sw1-vlan10]quit [sw1]inter Gigabit [sw1]inter GigabitEthernet 0/0/2 [sw1-GigabitEthernet0/0/2]port link-type trunk [sw1-GigabitEthernet0/0/2]port trunk allow-pass vlan all [sw1-GigabitEthernet0/0/2]quit [sw1]inter Vlanif 10 [sw1-Vlanif10]ip address 10.1.10.251 24 [sw1-Vlanif10]quit [sw1]quit <sw1>save The current configuration will be written to the device. Are you sure to continue?[Y/N]Y Info: Please input the file name ( *.cfg, *.zip ) [vrpcfg.zip]: Now saving the current configuration to the slot 0. Save the configuration successfully. <sw1>
④、sw2 配置
[sw2] Aug 23 2023 09:56:01-08:00 sw2 DS/4/DATASYNC_CFGCHANGE:OID 1.3.6.1.4.1.2011.5.25 .191.3.1 configurations have been changed. The current change number is 4, the c hange loop count is 0, and the maximum number of records is 4095. [sw2]un info en Info: Information center is disabled. [sw2]vlan 10 [sw2-vlan10]quit [sw2]inter G [sw2]inter GigabitEthernet 0/0/2 [sw2-GigabitEthernet0/0/2]port link-type trunk [sw2-GigabitEthernet0/0/2]port trunk allow-pass vlan all [sw2-GigabitEthernet0/0/2]quit [sw2]inter Vlanif 10 [sw2-Vlanif10]ip add 10.1.10.252 24 [sw2-Vlanif10]quit [sw2]quit <sw2>save The current configuration will be written to the device. Are you sure to continue?[Y/N]Y Info: Please input the file name ( *.cfg, *.zip ) [vrpcfg.zip]: Now saving the current configuration to the slot 0. Save the configuration successfully. <sw2>
⑤、vrrp虚拟网关配置
#创建 vrrp 工作组为10,虚拟ip地址为 10.1.10.254
#配置优先为120.目的是让sw1成为Master
#创建 vrrp 工作组为10,虚拟ip地址为 10.1.10.254,优先级默认配置是100.
⑥、查看vrrp配置
<sw1>dis vrrp Vlanif10 | Virtual Router 10 State : Master #sw1为Master角色 Virtual IP : 10.1.10.254 #虚拟网关地址 Master IP : 10.1.10.251 #物理网关地址 PriorityRun : 120 #运行优先级 PriorityConfig : 120 #配置优先级 MasterPriority : 120 #主备优先级 Preempt : YES Delay Time : 0 s TimerRun : 1 s TimerConfig : 1 s Auth type : NONE Virtual MAC : 0000-5e00-010a #虚拟MAC Check TTL : YES Config type : normal-vrrp Create time : 2023-08-23 10:33:40 UTC-08:00 Last change time : 2023-08-23 10:33:43 UTC-08:00 <sw1>
<sw1>dis vrrp brief
VRID State Interface Type Virtual IP
----------------------------------------------------------------
10 Master Vlanif10 Normal 10.1.10.254
----------------------------------------------------------------
Total:1 Master:1 Backup:0 Non-active:0
<sw1>
<sw2>dis vrrp Vlanif10 | Virtual Router 10 State : Backup Virtual IP : 10.1.10.254 Master IP : 10.1.10.251 PriorityRun : 100 #运行优先级100 PriorityConfig : 100 #配置优先级100 MasterPriority : 120 #主备优先级120 Preempt : YES Delay Time : 0 s TimerRun : 1 s TimerConfig : 1 s Auth type : NONE Virtual MAC : 0000-5e00-010a Check TTL : YES Config type : normal-vrrp Create time : 2023-08-23 10:35:11 UTC-08:00 Last change time : 2023-08-23 10:35:11 UTC-08:00 <sw2>
<sw2>dis vrrp brief
VRID State Interface Type Virtual IP
----------------------------------------------------------------
10 Backup Vlanif10 Normal 10.1.10.254
----------------------------------------------------------------
Total:1 Master:0 Backup:1 Non-active:0
<sw2>
⑦、通信测试
PC1 ping 网关 10.1.10.254
将sw1 交换机关机,再次测试通信状态
将sw1 关闭后刚开始不通,一会就连通了。
查看sw3的mac-address,可以看到数据是从sw3的Eth0/0/2出去
以上便说明了,在vrrp默认配置下,所有数据是交给主设备Master处理的,当主设备出现故障时,备用设备处理数据。
SW1正常情况下,SW1优先级120,是Master。SW2是Backup。
标签:10.1,10,33,vrrp,VRRP,sw1,sw3,sw2,冗余 From: https://www.cnblogs.com/lvjing/p/17651711.html