Nortel SMC 2450, Implementation Manual

Page: 37 / 262

Description Page 37 of 260
Secure Multimedia Controller Implementation Guide
Redundancy Protocol (VRRP) to determine which device is the master. The
other device, by default, is the backup.
As shown in Figure 5 on page 37 , VRRP requires three IP addresses for each
cluster interface:
• two real IP addresses: one for each SMC in the cluster
• a floating IP address owned by the master SMC
Figure 5
VRRP IP addressing
In all routing tables in external device, use the floating IP address to route
packets. The floating IP address is always available even when one SMC in
the cluster fails.