第七章 三层冗余技术VRRP-BACKUP MASTER (ERS 8300和ERS 8600)

VRRP Virtual Router Redundancy Protocol,虚拟路由器冗余协议)将可以承担网关功能的一组路由器加入到备份组中,形成一台虚拟路由器,由VRRP的选举机制决定哪台路由器承担转发任务,局域网内的主机只需将虚拟路由器配置为缺省网关
 
以第六章的拓扑图为基准
接入交换机vlan200启用VRRP,实现三层的网关冗余,虚拟的IP 地址分别是10.50.200.3
ERS8600A VRRP CONFIG
ERS8300A:5# vlan 200 ip vrrp 80 address 10.50.200.3
ERS8300A:5# vlan 200 ip vrrp 80 backup-master enable
ERS8300A:5# vlan 200 ip vrrp 80 holddown-timer 60
ERS8300A:5# vlan 200 ip vrrp 80 priority 101
ERS8300A:5# vlan 200 ip vrrp 80 enable
ERS8600B VRRP CONFIG
ERS8300B:5# vlan 200 ip vrrp 80 address 10.50.200.3
ERS8300B:5# vlan 200 ip vrrp 80 backup-master enable
ERS8300B:5# vlan 200 ip vrrp 80 holddown-timer 60
ERS8300B:5# vlan 200 ip vrrp 80 priority 100
ERS8300B:5# vlan 200 ip vrrp 80 enable
 
查看信息:
Show ip vrrp info