Sample Virtual Router Redundancy Protocol (VRRP) Configuration
Short Description
VRRP is used to provide fast automatic fail-over for hosts when the default gateway fails. This eliminates the single point of failure inherent in the static default routed environment. A master VRRP router controls the IP addresses associated with the virtual router and forwards packets sent to these IP addresses. If the master router fails, the backup router takes over.
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Content
Figure 1 Illustrates a dual VRRP configuration (VRRP 1 and VRRP 2) between a P882 switch and a Foundry BigIron 8000 switch with the hosts splitting their traffic between the virtual routers. VRRP 1 was configured with IP address “10.10.10.1″ as the “Master” IP address and “10.10.10.2″ as the “Slave” IP address. VRRP 2 was configured with IP address “10.10.20.6″ as the “Master” IP address and “10.10.20.1″ as the “Slave” IP address.
Note 1: This document assumes that the network configuration depicted in Figure 1 is already in place. Please consult the appropriate User Guides for more information on how to set up this network.
Note 2: As per RFC 2338, VRRP is intended for use with IPv4 routers only. A separate RFC specification may be produced if it is decided that similar functionality is desirable in an IPv6 environment.
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