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192 IP Routing Configuration and Management
The VRRP priority setting is used to determine which router will become
the VRRP master and which will become the VRRP backup. In instances
where the priority setting is the same for two routers, the higher IP address
becomes the tie breaker. Therefore, it is very important to set the correct
VRRP priority. VRRP fast advertisement will also be enabled in this example
to allow for fast failover detection.
The following procedure outlines the steps necessary to reproduce the
example described above:
Step Action
1
Configure VLAN 2 on router R1.
a. Create VLAN 2 on router R1.
5530-24TFD# config terminal
5530-24TFD(config)# vlan create 2 type port
b. Configure the ports for VLAN 2 on R1.
5530-24TFD# config terminal
5530-24TFD(config)# vlan members add 2 1/15
c. Configure an IP address for VLAN 2.
Add IP address 10.1.20.2 / 255.255.255.0 to VLAN 2.
5530-24TFD# config terminal
5530-24TFD(config)# interface vlan 2
5530-24TFD(config-if)# ip address 10.1.20.2
255.255.255.0
d. Configure an OSPF interface for VLAN 2.
5530-24TFD# config terminal
5530-24TFD(config)# router ospf enable
5530-24TFD(config)# router ospf
5530-24TFD(config-router)# network 10.1.20.2
e. Configure VRRP on VLAN 2.
The VRRP VIP address of 10.1.20.1 is added to VLAN 2 using
a VRID of 1.
Note 1: The VRRP priority is not configured here; it is left at
factory default of 100. Instead, the priority setting on router
R2 will be set to a higher value when R2 is configured.
Note 2: Fast advertisement is disabled by default. Fast
advertisement is proprietary to Nortel to support an
advertisement interval from 200 to 1000 milliseconds (ms)
with a default of 200. If fast VRRP advertisement is desired,
enable fast advertisement.
Nortel Ethernet Routing Switch 5500 Series
Configuration-IP Routing Protocols
NN47200-503 03.01 Standard
5.1 27 August 2007
Copyright © 2005-2007, Nortel Networks
.