Specifications

Chapter 6. IBM Virtual Fabric 10Gb Switch Module implementation 279
Some tracking criteria apply to standard virtual routers called
virtual interface routers. A
virtual server router is defined as any virtual router whose IP address is the same as any
configured virtual server IP address.
Run [no] virtual-router <1-15> track virtual-routers to allow the priority for this
virtual router to be increased for each virtual router in Master mode on this switch. This
command is useful for making sure that traffic for any particular client/server pairing is
handled by the same switch, increasing routing and load balancing efficiency. This
command is disabled by default.
Run [no] virtual-router <1-15> track interfaces to allow the priority for this virtual
router to be increased for each other IP interface active on this switch. An IP interface is
considered active when there is at least one active port on the same VLAN. This
command helps elect the virtual routers with the most available routes as the Master. This
command is disabled by default.
Run [no] virtual-router <1-15> track ports to allow the priority for this virtual router to
be increased for each active port on the same VLAN. A port is considered “active” if it has
a link and is forwarding traffic. This command helps elect the virtual routers with the most
available ports as the Master. This command is disabled by default.
Use the following commands to set weights for the various criteria used to modify priority
levels during the Master router election process. Each time one of the tracking criteria is
met, the priority level for the virtual router is increased by a defined amount. These priority
tracking options define only increment values. These options do not affect the VRRP
Master router election process until options under the VRRP Virtual Router Priority
Tracking Commands are enabled.
Run tracking-priority-increment virtual-routers <0-254> to define the priority
increment value (0 - 254) for virtual routers in Master mode detected on this switch. The
default value is 2.
Run tracking-priority-increment interfaces <0-254> to define the priority increment
value for active IP interfaces detected on this switch. The default value is 2.
Run tracking-priority-increment ports <0-254> to define the priority increment value
for active ports on the virtual router’s VLAN. The default value is 2.
The tracking configuration is shown in Example 6-37.
Example 6-37 Configure tracking
AGG-1#configure terminal
Enter configuration commands, one per line. End with Ctrl/Z.
AGG-1(config)#router vrrp
AGG-1(config-vrrp)#virtual-router 3 track ports
AGG-1(config-vrrp)#tracking-priority-increment ports 50
AGG-1(config-vrrp)#
AGG-2#configure terminal
Enter configuration commands, one per line. End with Ctrl/Z.
AGG-2(config)#router vrrp
AGG-2(config-vrrp)#virtual-router 3 track ports
AGG-2(config-vrrp)#tracking-priority-increment ports 50
AGG-2(config-vrrp)#
Important: For other VRRP configuration commands and details, see 6.7, “More
information” on page 284.