Configuring Vrrp - H3C S9500 Series Operation Manual

Operation Manual - VRRP
H3C S9500 Series Routing Switches
Actual IP address10.100.10.2
Virtual IP address10.100.10.1
Figure 1-2 Network diagram for virtual router
This virtual router has its own IP address: 10.100.10.1 (which can be the interface
address of a switch within the virtual router). The switches within the virtual router have
their own IP addresses (such as 10.100.10.2 for the Master switch and 10.100.10.3 for
the Backup switch). The hosts on the LAN only know the IP address of this virtual router
10.100.10.1 (usually called as virtual IP address of the virtual router), but not the
specific IP addresses 10.100.10.2 of the Master switch and 10.100.10.3 of the Backup
switch. A default route with the next hop 10.100.10.1 is configured on the hosts.
Therefore, hosts within the network will communicate with the external network through
this virtual router. If the Master switch in the virtual group breaks down, another Backup
switch will function as the new Master switch to continue serving the hosts without any
interruption.

1.2 Configuring VRRP

The following sections describe the VRRP configuration tasks:
Configuring the Function of Pinging the Virtual IP Address
Configuring the TTL Value Check for VRRP Packets
Configuring the Mapping Mode between Virtual IP Address and MAC Address
Configuring a Virtual IP Address
Configuring a Priority for a Switch in the VRRP Group
Configuring Preemption and Delay for a Switch in a VRRP Group
Configuring Authentication Type and Authentication Key
Configuring the Interval for Sending VRRP Packets on the Master
Configuring the Switch to Track a Specified Interface
Configuring VRRP Link Monitoring
Configuring IFM Tracking
Configuring the Fast Switch Function for a Virtual Router
Network
Master
Ethernet
10.100.10.7 10.100.10.8
Host 1 Host 2
1-2
Chapter 1 VRRP Configuration
Actual IP address10.100.10.3
Backup
Virtual IP address10.100.10.1
10.100.10.9
Host 3