Brocade Communications Systems Layer 3 Routing Configuration ICX 6650 - Manual (Page 437)

Brocade ICX 6650 Layer 3 Routing Configuration Guide 419
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VRRP and VRRP-E overview
Figure 32 shows an example of a VRRP-E configuration.
FIGURE 32 Switch 1 and Switch 2 are configured to provide dual redundant network access for the host
In this example, Switch 1 and Switch 2 use VRRP-E to load share as well as provide redundancy to
the hosts. The load sharing is accomplished by creating two VRRP-E 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
organization enables some of the outbound Internet traffic to go through Switch 1 and the rest to
go through Switch 2.
Switch 1 is the Master router for VRID 1 (backup priority = 110) and Switch 2 is the Backup router
for VRID 1 (backup priority = 100). Switch 1 and Switch 2 both track the uplinks to the Internet. If
an uplink failure occurs on Switch 1, its backup priority is decremented by 20 (track priority = 20),
so that all traffic destined to the Internet is sent through Switch 2 instead.
Similarly, Switch 2 is the Master router for VRID 2 (backup priority = 110) and Switch 1 is the
Backup router for VRID 2 (backup priority = 100). Switch 1 and Switch 2 are both tracking the
uplinks to the Internet. If an uplink failure occurs on Switch 2, its backup priority is decremented by
20 (track priority = 20), so that all traffic destined to the Internet is sent through Switch 1 instead.
Internet
Switch 1 Switch 2
e 1/1/2
e 1/1/6 192.168.5.2 192.168.5.3 e 1/1/5
e 1/1/3
Host1
Default Gateway
192.168.5.254 Host2
Default Gateway
192.168.5.254 Host3
Default Gateway
192.168.5.253 Host4
Default Gateway
192.168.5.253
VRID 1
Switch 1 = Master
Virtual IP address 192.168.5.254
Priority = 110
Track Port = e 1/1/2
Track Priority = 20
VRID 2
Switch 1 = Backup
Virtual IP address 192.168.5.253
Priority = 100 (Default)
Track Port = e 1/1/2
Track Priority = 20
VRID 1
Switch 2 = Backup
Virtual IP address 192.168.5.254
Priority = 100 (Default)
Track port = e 1/1/3
Track priority = 20
VRID 2
Switch 2 = Master
Virtual IP address 192.168.5.253
Priority = 110
Track Port = e 1/1/3
Track Priority = 20