Dell PowerConnect B-FCXs Configuration Manual page 403

FIGURE 70
Link down
You can reduce the sensitivity of a VSRP device to failover by increasing its configured VSRP
priority. For example, you can increase the configured priority of the VSRP device on the left in
Figure 70
caused the priority to be reduced to 100, which is still equal to the priority of the other device. This
is shown in
FIGURE 71
Link down
Track ports
Optionally, you can configure track ports to be included during VSRP priority calculation. In VSRP, a
track port is a port that is not a member of the VRID VLAN, but whose state is nonetheless
considered when the priority is calculated. Typically, a track port represents the exit side of traffic
received on the VRID ports. By default, no track ports are configured.
PowerConnect B-Series FCX Configuration Guide
53-1002266-01
VSRP priority recalculation
Configured priority = 100
Actual priority = 100 * (2/3) = 67
VSRP
Backup
B B
X
VSRP
Aware
to 150. In this case, failure of a single link does not cause failover. The link failure
Figure 71.
VSRP priority bias
Configured priority = 150
Actual priority = 150 * (2/3) = 100
VSRP
Master
F F
X
VSRP
Aware
Virtual Switch Redundancy Protocol (VSRP)
Configured priority = 100
Actual priority = 100 * (3/3) = 100
optional link
B
VSRP
Aware
optional link
F
VSRP
Aware
VSRP
Master
F F
F
VSRP
Aware
Configured priority = 100
Actual priority = 100 * (3/3) = 100
VSRP
Backup
B B B
VSRP
Aware
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