Example For Associating A Vrrp Backup Group With A Route - Huawei AR2200-S Series Configuration Manual

Huawei AR2200-S Series Enterprise Routers
Configuration Guide - Reliability

2.11.5 Example for Associating a VRRP Backup Group with a Route

In this example, a VRRP backup group is configured to track the uplink route connected to a
network. If the route is withdrawn or becomes inactive, the RM module notifies the VRRP
backup group of the change. After receiving the notification, the VRRP backup group performs
a master/backup switchover.
Networking Requirements
To improve link reliability, two user gateways are connected to a network along two links, and
VRRP is configured to determine the active and standby states for the two links.
If either link fails, VRRP packets are sent to negotiate link states. This process lasts a period of
time. To implement an active/standby switchover rapidly, the VRRP backup group can be
associated with an uplink route to the network. If the route is withdrawn or becomes inactive,
the VRRP backup group can rapidly perform a master/backup VRRP switchover.
On the network shown in
a VRRP backup group working in master/backup mode. Router A, the master, is associated with
a route to Router C's interface connected to the network. If the interface goes Down, the RM
module instructs the VRRP module to perform a master/backup VRRP switchover. After the
interface goes Up, traffic switches back to the previous master device.
Figure 2-7 Networking diagram for association between a VRRP backup group and a route
Switch
HostA
Configuration Roadmap
The configuration roadmap is as follows:
1.
2.
Issue 01 (2012-01-06)
Figure
GE1/0/0
10.1.1.1/24
GE1/0/0
10.1.1.2/24
VRRP Backup Group
Virtual IP Address:10.1.1.10
Configure IP addresses for interfaces to ensure connectivity of links.
Configure a VRRP backup group on Router A and Router B. Ensure that Router A is the
master and Router B is the backup.
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2-7, Router A and Router B are two gateways and they form
GE 2/0/0
192.168.1.1/24
RouterA
GE 1/0/0
192.168.1.2/24
GE 1/0/0
192.168.2.2/24
RouterB
GE 2/0/0
192.168.2.1/24
2 VRRP Configuration
RouterC
GE2/0/0
20.1.1.1/24
Internet
RouterD
112