Command Line Interface Reference Guide > The Configuration Menu > /cfg/l3/vrrp VRRP Configuration Menu > /cfg/l3/vrrp/vr <router number> Virtual Router Configuration Menu
/cfg/l3/vrrp/vr <router number>
Virtual Router Configuration Menu
This menu is used to configure up to 256 virtual routers for this Alteon. A virtual router is defined by its virtual router ID and an IP address. On each VRRP-capable routing Alteon participating in redundancy for this virtual router, a virtual router is configured to share the same virtual router ID and IP address.
Virtual routers are disabled by default.
Note: The VRRP3 VRID for an IPv6 VRRP configuration has a range of 1 to 255.
 
[VRRP Virtual Router 1 Menu]
track - Priority Tracking Menu
ipver - Set IP version
vrid - Set virtual router ID
addr - Set IP address
if - Set interface number
prio - Set renter priority
       ospf    - OSPF cost adjustment
adver - Set advertisement interval
preem - Enable or disable preemption
share - Enable or disable sharing
ena - Enable virtual router
dis - Disable virtual router
del - Delete virtual router
cur - Display current VRRP virtual router configuration
 
VRRP Virtual Router Options (/cfg/l3/vrrp/vr) 
Command Syntax and Usage
track
 
Displays the VRRP Priority Tracking menu for this virtual router.
Tracking is a proprietary extension to VRRP, used for modifying the standard priority system used for electing the primary router. Tracking is not needed if sharing is enabled (see the share command in this table).
ipver v4|v6
 
Sets the version of the Internet Protocol supported by this virtual router.
Default: v4
vrid <virtual router ID (1-1024)>
 
Defines the virtual router ID. This is used in conjunction with the addr command to define a virtual router. To create a pool of VRRP-enabled routing Alteons which can provide redundancy for each other, each participating VRRP Alteon must be configured with the same virtual router, meaning one that shares the same vrid and addr combination.
*For standard virtual routers (where the virtual router IP address is not the same as any virtual server):
Values: 1 – 255
Default: 1
*For virtual server routers where the virtual router IP address is the same as the virtual server can be any integer:
Values: 1 – 1024
Default: 1
All vrid values must be unique within the VLAN to which the virtual router’s IP interface belongs.
addr <IP address>
 
Defines the IP address for this virtual router using the notation appropriate to the IP version supported by this virtual router. This is used in conjunction with the vrid to configure the same virtual router on each participating VRRP Alteon.
*IPv4 addresses use a dotted decimal notation (for example, as 192.168.0.1).
*IPv6 addresses use a hexadecimal format (for example, 2006:0:0:0:0:0:20:64).
Default: 0.0.0.0
if <interface number (1-256)>
 
Selects an Alteon IP interface. If the IP interface has the same IP address as the addr (see in this table), this Alteon is considered the “owner” of the defined virtual router. An owner has a special priority of 255 (highest) and always assumes the role of the primary router, even if it must preempt another virtual router which has assumed primary routing authority. This preemption occurs even if the preem option is disabled (see in this table).
Values: 1 – 256
Default: 1
prio <priority (1-254)>
 
Defines the election priority bias for this virtual server.
Note: When you enable hot-standby for a vrgroup, the currently set priority for the vrgroup is increased by 2.
During the primary router election process, the routing Alteon with the highest virtual router priority number wins. If there is a tie, the Alteon with the highest IP interface address wins. If this virtual router’s IP address (addr) is the same as the one used by the IP interface, the priority for this virtual router is automatically set to 255 (highest).
When priority tracking is used (/cfg/l3/vrrp/track or /cfg/l3/vrrp/vr #/track), this base priority value can be modified according to a number of performance and operational criteria.
Values: 1 – 254
Default: 100
ospf
 
Updates the OSPF cost increment for this virtual router. To disable OSPF cost adjustment, when prompted, enter the new cost increment as 0.
adver <seconds (1-255)>
 
For IPv4 — The time, in seconds, between VRRP primary advertisements.
For IPv6 — The time, in centiseconds (100 centiseconds equals 1 second), between VRRP primary advertisements.
Values:
*1 – 255 — When the specified IP version is IPv4.
*1 – 4095 — When the specified IP version is IPv6.
Default: 1 (IPv4), 100 (IPv6)
preem disable|enable
 
Enables or disables primary preemption. When enabled, if this virtual router is in backup mode but has a higher priority than the current primary, this virtual router preempts the lower priority primary and assumes control.
Note: Even when preem is disabled, this virtual router always preempts any other primary if this Alteon is the owner (the IP interface address and virtual router addr are the same).
Default: enable
share disable|enable
 
Enables or disables virtual router sharing, a proprietary extension to VRRP. When enabled, this Alteon processes any traffic addressed to this virtual router, even when in backup mode.
Default: enable
ena
 
Enables this virtual router.
dis
 
Disables this virtual router.
del
 
Deletes this virtual router.
cur
 
Displays the current configuration information for this virtual router.