10 vrrp configuration, Vrrp overview, Vrrp configuration – H3C Technologies H3C S7500E Series Switches User Manual
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10
VRRP Configuration
This chapter includes these sections:
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IPv4-Based VRRP Configuration Examples
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IPv6-Based VRRP Configuration Examples
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The term router in this document refers to both routers and Layer 3 switches.
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At present, the interfaces that VRRP involves can only be VLAN interfaces.
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EA boards (such as LSQ1GP12EA and LSQ1TGX1EA) do not support IPv6 features.
VRRP Overview
Typically, as shown in
, you can configure a default route with the gateway as the
next hop for every host on a network segment. All packets destined to other network segments
are sent over the default route to the gateway, which then forwards the packets. However, when
the gateway fails, all the hosts that use the gateway as the default next-hop router fail to
communicate with external networks.