Dell PowerConnect B-RX Configuration Manual page 533

FIGURE 86
In this example, Router1 and Router2 use VRRPE to load share as well as provide redundancy to
the hosts. The load sharing is accomplished by creating two VRRPE groups. Each group has its
own virtual IP addresses. Half of the clients point to VRID 1's virtual IP address as their default
gateway and the other half point to VRID 2's virtual IP address as their default gateway. This will
enable some of the outbound Internet traffic to go through Router1 and the rest to go through
Router2.
Router1 is the master for VRID 1 (backup priority = 110) and Router2 is the backup for VRID 1
(backup priority = 100). Router1 and Router2 both track the uplinks to the Internet. If an uplink
failure occurs on Router1, its backup priority is decremented by 20 (track priority = 20), so that all
traffic destined to the Internet is sent through Router2 instead.
Similarly, Router2 is the master for VRID 2 (backup priority = 110) and Router1 is the backup for
VRID 2 (backup priority = 100). Router1 and Router2 are both tracking the uplinks to the Internet.
If an uplink failure occurs on Router2, its backup priority is decremented by 20 (track priority = 20),
so that all traffic destined to the internet is sent through Router1 instead.
The BigIron RX device configured for VRRPE can interoperate only with other BigIron RX devices.
BigIron RX Series Configuration Guide
53-1002253-01
Router1 and Router2 are configured to provide dual redundant network access for the
host
VRID 1
Router A = Master
Virtual IP address 192.53.5.254
Priority = 110
Track port = e 2/4
Track priority = 20
VRID 2
Router A = Backup
Virtual IP address 192.53.5.253
Priority = 100 (Default)
Track Port = e 2/4
Track Priority = 20
Host1
Default Gateway
192.53.5.254
Internet
e 2/4
Router1
e 1/6 192.53.5.2
Host2 Host3
Default Gateway Default Gateway
192.53.5.254 192.53.5.253
Overview of VRRPE
e 3/2
VRID 1
Router B = Backup
Virtual IP address 192.53.5.254
Priority = 100 (Default)
Router2
Track port = e 3/2
Track priority = 20
e 5/1 192.53.5.3
VRID 2
Router A = Master
Virtual IP address 192.53.5.253
Priority = 110
Track Port = e 3/2
Track Priority = 20
Host4
Default Gateway
192.53.5.253
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