Quanta Cloud Technology QuantaMesh QNOS5, Руководство по настройке

Страница: 191 / 256

191
Without VRRP interface or route tracking, if something happened to VLAN 25 or the route to the external
network, as long as Router A remains up, it will continue to be the VRRP master even though traffic from the
clients does not have a path to the external network. However, if the interface and/or route tracking features
are configured, Router A can decrease its priority value when the problems occur so that Router B becomes
the master.
To configure Router A:
1. Enable routing for the switch.
(QCT) #config
(QCT) (Config)#ip routing
(QCT) (Config)#exit
2. Configure the VLAN routing interface to use as the default gateway for network clients. This example
assumes all other routing interfaces, such as the interface to the external network, have been configured.
(QCT) #config
(QCT) (Config)#interface vlan 10
(QCT) (if-vlan10)#ip address 192.168.10.1 255.255.255.0
(QCT) (if-vlan10)#exit
3. Enable VRRP for the switch.
(QCT) (Config)#ip vrrp
4. Assign a virtual router ID to the VLAN routing interface for the VRRP group.
(QCT) (Config)#interface vlan 10
(QCT) (if-vlan10)#ip vrrp 10
5. Specify the IP address that the virtual router function will use.
(QCT) (if-vlan10)#ip vrrp 10 ip 192.168.10.15
6. Configure the router priority.
(QCT) (if-vlan10)#ip vrrp 10 priority 200
7. Enable preempt mode so that the router can regain its position as VRRP master if its priority is greater
than the priority of the backup router.
(QCT) (if-vlan10)#ip vrrp 10 preempt
8. Enable the VRRP groups on the interface.
(QCT) (if-vlan10)#ip vrrp 10 mode
(QCT) (if-vlan10)#exit
9. Track the routing interface VLAN 25 on VRID 10 so that if it goes down, the priority of VRID 10 on Router A
is decreased by 10, which is the default decrement priority value.
(QCT) (if-vlan10)#ip vrrp 10 track interface vlan 25
10. Track the route to the 192.168.200.0 network. If it becomes unavailable, the priority of VRID 10 on Router
A is decreased by 10, which is the default decrement priority value.