Operation Manual - Reliability
Quidway S3500 Series Ethernet Switches Chapter 1 VRRP Configuration
Huawei Technologies Proprietary
1-2
Ethernet
Master
Host 1 Host 2 Host 3
10.100.10.7 10.100.10.8 10.100.10.9
Virtual IP address10.100.10.1
Network
Backup
Virtual IP address10.100.10.1
Actual IP address10.100.10.2 Actual IP address10.100.10.3
Figure 1-2 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 host on the LAN only knows the IP address of this virtual
router 10.100.10.1, but not the specific IP addresses 10.100.10.2 of the Master switch
and 10.100.10.3 of the BACKUP switch. They configure their own default routes as the
IP address of this virtual router: 10.100.10.1. Therefore, hosts within the network will
communicate with the external network through this virtual router. If a Master switch in
the virtual group breaks down, another BACKUP switch will function as the new Master
switch to continue serving the host with routing to avoid interrupting the communication
between the host and the external networks.
1.2 Configure VRRP
VRRP configuration includes:
z Enable/disable the Function to Ping the Virtual IP Address
z Set Correspondence between Virtual IP Address and MAC Address
z Add/Remove virtual IP address
z Configure the priority of switches in the virtual router.
z Enable the preemption mode and configure a period of delay.
z Configure authentication type and authentication key
z Configure timer of the virtual router
z Configure to track a specified interface
1.2.1 Enable/disable the Function to Ping the Virtual IP Address
This operation enables or disables the function to ping the virtual IP address of the
backup group. The standard protocol of VRRP does not support the ping function, then
the user cannot judge with ping command whether an IP address is used by the
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