Brocade Multi-Service IronWare Routing Configuration Guide (Supporting R05.6.00) - Manual (Page 810)

782 Multi-Service IronWare Routing Configuration Guide
53-1003033-02
Overview of VRRP-E
Overview of VRRP-E
VRRP-E is proprietary version of VRRP that overcomes limitations in the standard protocol.
Figure 41 shows an example of a VRRP-E configuration.
FIGURE 41 Router1 and Router2 are configured to provide dual redundant network access for the
host
In this example, Router1 and Router2 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 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 Brocade device configured for VRRP-E can interoperate only with other Brocade devices.