Technical data

BLADEOS 6.3 Command Reference
BMD00186-B, April 2010 Chapter 4: Configuration Commands
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Virtual Router Priority Tracking Configuration
These commands are used for modifying the priority system used when electing the master router
from a pool of virtual routers. Various tracking criteria can be used to bias the election results. Each
time one of the tracking criteria is met, the priority level for the virtual router is increased by an
amount defined through the VRRP Tracking commands.
Criteria are tracked dynamically, continuously updating virtual router priority levels when enabled.
If the virtual router preemption option is enabled, this virtual router can assume master routing
authority when its priority level rises above that of the current master.
Some tracking criteria apply to standard virtual routers, otherwise 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.
Table 235 VRRP Priority Tracking Configuration Commands
Command Syntax and Usage
[no] virtual-router <1-15> track virtual-routers
When enabled, the priority for this virtual router will be increased for each virtual router in
master mode on this switch. This is useful for making sure that traffic for any particular
client/server pairing are handled by the same switch, increasing routing and load balancing
efficiency. This command is disabled by default.
Command mode: Router VRRP
[no] virtual-router <1-15> track interfaces
When enabled, the priority for this virtual router will 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 helps elect the virtual routers with the most available routes as the
master. This command is disabled by default.
Command mode: Router VRRP
[no] virtual-router <1-15> track ports
When enabled, the priority for this virtual router will 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 helps
elect the virtual routers with the most available ports as the master. This command is disabled
by default.
Command mode: Router VRRP
show ip vrrp virtual-router <1-15> track
Displays the current configuration for priority tracking for this virtual router.
Command mode: All except User EXEC