Extreme Networks ExtremeWare XOS Command Reference Manual page 1005

configure esrp election-policy
ESRP re-election can occur if sticky is set on the master and a local event occurs. During this time, if the
current master has lower election parameters, the backup can become the new master.
Switch Behavior . If a switch is master, it actively provides Layer 3 routing services to other VLANs, and
Layer 2 switching between all the ports of that VLAN. Additionally, the switch exchanges ESRP packets
with other switches that are in slave mode.
If a switch is in slave mode, it exchanges ESRP packets with other switches on that same VLAN. When
a switch is in slave mode, it does not perform Layer 3 routing or Layer 2 switching services for the
VLAN.
Updating the Election Algorithm . ESRP uses the default election policy for extended mode. If you have
an ESRP domain operating in standard mode, the domain ignores the sticky and weight algorithms. To
change the election algorithm, you must first disable the ESRP domain and then configure the new
election algorithm. If you attempt to change the election algorithm without disabling the domain first,
an error message appears.
To disable the ESRP domain, use the following command:
disable esrp {<esrpDomain>}
To modify the election algorithm, use the following command:
configure esrp <esrpDomain> election-policy [ports > track > priority | ports > track
> priority > mac | priority > mac | priority > ports > track > mac | priority > track
> ports > mac | sticky > ports > track > priority | sticky > ports > track > priority
> mac | sticky > ports > weight > track > priority > mac | sticky > priority > mac |
sticky > priority > ports > track > mac | sticky > priority > track > ports > mac |
sticky > track > ports > priority > | track > ports > priority | track > ports >
priority > mac >]
Example
The following command configures the election algorithm to use tracking information as the first
criteria for determining the ESRP master switch for ESRP domain :
esrp1
configure esrp esrp1 election-policy track > ports > priority > mac
History
This command was first available in ExtremeWare XOS 11.0.
The default election algorithm for extended mode was updated to
sticky > ports > weight >
, and the election factor was used in ExtremeWare XOS 11.1. The
track > priority > mac weight
election algorithm is not supported in
sticky > ports > track > priority > mac > weight
ExtremeWare XOS 11.1.
Platform Availability
This command is available on all platforms.
1005
ExtremeWare XOS 11.3 Command Reference