Chapter 1 Vrrp Configuration; Introduction To Vrrp; Vrrp Overview - H3C S5500-EI series Operation Manual

Operation Manual – VRRP
H3C S5500-EI Series Ethernet Switches

Chapter 1 VRRP Configuration

When configuring VRRP, go to these sections for information you are interested in:

Introduction to VRRP

Configuring VRRP for IPv4
Configuring VRRP for IPv6
IPv4-Based VRRP Configuration Examples
IPv6-Based VRRP Configuration Examples
Troubleshooting VRRP
Note:
At present, the interfaces that VRRP involves can only be VLAN interfaces unless
otherwise specified.
1.1 Introduction to VRRP

1.1.1 VRRP Overview

Normally, as shown in
the next hop for every host on a network segment, allowing all packets destined to the
other network segments to be sent over the default route to the gateway and then be
forwarded by the gateway. This enables hosts on a network segment to communicate
with external networks. However, when the gateway fails, all the hosts using the
gateway as the default next-hop switch fail to communicate with the external network.
Figure 1-1, you can configure a default route with the gateway as
1-1
Chapter 1 VRRP Configuration