configure vm-tracking timers

configure vm-tracking timers reauth-period reauth_period


Configures the RADIUS (Remote Authentication Dial In User Service) reauthentication period for VM MAC addresses.

Syntax Description


Specifies the reauthentication period in seconds. The ranges are 0 and 30-7200 seconds.


0 seconds.

Usage Guidelines

One way to periodically apply Virtual Port Profiles (VPPs) to VM MAC addresses is to configure a reauthentication period. At the end of each reauthentication period, the switch reauthenticates each VM MAC address and applies any updated VPPs.

This command applies to only those VMs that authenticate through RADIUS. Reauthentication is disabled when the reauthentication period is set to 0 seconds. When reauthentication is disabled, the VM MAC address remains authenticated until the FDB (forwarding database) entry for that VM expires.


The following command enables RADIUS server reauthentication at 2 minute intervals:

configure vm-tracking timers reauth-period 120


This command was first available in ExtremeXOS 12.5.

Platform Availability

This command is available on the Summit X450-G2, X460-G2, X670-G2, X770, and ExtremeSwitching X440-G2, X620, X690, X870 series switches.