H3C Technologies H3C S3600 Series Switches - Manual (Page 575)

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VRRP Configuration
When configuring VRRP, go to these sections for information you are interested in:
z VRRP Overview
z VRRP Configuration
z Displaying and Maintaining VRRP
z VRRP Configuration Examples
z Troubleshooting VRRP
S3600-SI series Ethernet Switches support VRRP in Release 1702.
VRRP Overview
As shown in Figure 1-1 , the following occasions may occur in a stable network:
z All the hosts in a network set the same gateway as their next hop, whose IP address is also known
as the next hop address of the default route (for example, the next hop address of the default route
is 10.100.10.1 in Figure 1-1 ).
z The Switch in the figure acts as the gateway of all the hosts in the network, and forwards the hosts’
packets destined for other network segments, so as to realize the communication between the
hosts and the external network.
z If Switch fails, all the hosts on this segment taking Switch as the default gateway are cut off from
the external network.
Figure 1-1 LAN networking
Host 1
Ethernet
Switch
Network
Host 2 Host 3
10.100.10.7/24 10.100.10.9/24 10.100.10.8/24
10.100.10.1/24