Standard Vrrp - Dell PowerConnect B-RX Configuration Manual

17
Overview of VRRP

Standard VRRP

VRRP is an election protocol that provides redundancy to routers within a LAN. VRRP allows you to
provide alternate router paths for a host without changing the IP address or MAC address by which
the host knows its gateway. Consider the situation shown in
FIGURE 83
As shown in this example, Host1 uses 192.53.5.1 on Router1 as the host's default gateway out of
the subnet. If this interface goes down, Host1 is cut off from the rest of the network. Router1 is
thus a single point of failure for Host1's access to other networks.
440
Router1 is Host1's default gateway but is a single point of failure
Internet
or
enterprise Intranet
e 2/4
Router1
e 1/6 192.53.5.1
Figure 83.
Internet
or
enterprise Intranet
e 3/2
Router2
e 1/5
Host1
Default Gateway
192.53.5.1
BigIron RX Series Configuration Guide
53-1001810-01