Configuring VRRP VRRP Configuration Overview
OmniSwitch AOS Release 8 Network Configuration Guide December 2017 page 23-9
• Priority: Use the priority keyword to change the default priority value and set a desired value. Note
that the IP address owner is automatically assigned a value of 255, which overrides any value that you
may have already configured. See “Configuring Virtual Router Priority” on page 23-11 for more
information about how priority is used.
• Preempt mode: To change from the default preempt mode and to turn it off, use no preempt. Use
preempt to turn it back on. For more information about the preempt mode, see “Setting Preemption for
Virtual Routers” on page 23-12.
• Accept mode: The accept mode applies only to VRRPv3 virtual routers and allows the master router to
accept packets addressed to the IPv6 address owner as its own. Use the no accept mode to prevent the
master router from accepting packets addressed to the IPv6 address owner.
• Advertising interval: Measured in seconds (VRRPv2) or centiseconds (VRRPv3). Use the interval
keyword with the desired number of seconds or centiseconds for the delay in sending VRRP
advertisement packets. You can change the default interval value and set a desired value. See
“Configuring the Advertisement Interval” on page 23-10.
The following example creates a VRRPv2 virtual router (with VRID 7) on VLAN 2 with a priority of 75.
The preempt mode of the router is enabled and VRRP advertisements will be sent at intervals of 2
seconds:
-> vrrp 7 2 priority 75 preempt interval 2
The following example creates a VRRPv3 virtual router (with VRID 7) on VLAN 2 with a priority of 75,
no preempt, and no accept. VRRPv3 advertisements will be sent at intervals of 200 centiseconds:
-> vrrp3 7 2 priority 75 no preempt no accept interval 200
The vrrp|vrrp3 command may also be used to specify whether the virtual router is administratively
enabled or disabled. However, the virtual router must have an IP address assigned to it before it can be
enabled. Use the vrrp|vrrp3 address command as described in the next section to specify an IP address
or addresses.
To delete a virtual router, use the no form of the vrrp or vrrp3 command option with the relevant VRID
and VLAN ID. For example:
-> no vrrp 7 2
-> no vrrp3 7 2
Virtual router 7 on VLAN 2 is deleted from the configuration. (The virtual router does not have to be
disabled before you delete it.)
For more information about the vrrp|vrrp3 command syntax, see the OmniSwitch AOS Release 8 CLI
Reference Guide.
Notes.
• The maximum number of VRRPv3 virtual routers supported is based on the 100 centisecond
interval. A smaller interval will result in a relatively lesser number of virtual routers.
• The centisecond interval cannot be less than 10 centiseconds.
Note. All virtual routers with the same VRID on the same LAN should be configured with the same
advertising interval; otherwise the network may produce duplicate IP or MAC address messages.
To Next Page
Loading...
