configure mlag ports convergence-control

configure mlag ports convergence-control [conserve-access-lists | fast]


Sets a preference for having a fast convergence time or conserving access lists.

Syntax Description

conserve-access-lists Specifies that conserving access lists is preferred over low traffic convergence time.
fast Specifies that low traffic convergence time is preferred at the expense of the number of user access lists.



Usage Guidelines

Achieving fast convergence times on local This command is available on ExtremeSwitching 5320, 5420, 5520, 5720 series switches. port state changes (down and up), independent of the number of FDB entries learned on the MLAG port, requires the use of ACLs. This limits the number of ACLs you have available. This command allows you to set your preference for having either fast convergence time or conserving available access lists for your users.



Configuring fast convergence-control limits the number of ACLs that can be supported by the switch. You must ensure that the system has sufficient user ACLs free when fast mode is selected. Configuring conserve-access-lists convergence-control may increase convergence times on MLAG port failures.

Fast convergence configuration has global significance in that it applies to all MLAG groups that are currently configured and those that may be configured in the future.


The following command specifies a priority of conserving access lists over low traffic convergence time:

# configure mlag ports convergence-control conserve-access-lists


This command was first available in ExtremeXOS 12.5.

Platform Availability

This command is available on ExtremeSwitching 5320, 5420, 5520, and 5720 series switches.