configure eaps hellotime

configure eaps name hellotime seconds milliseconds


Configures the period at which the master node sends EAPS (Extreme Automatic Protection Switching) hello PDUs to verify ring connectivity.

Syntax Description

name Specifies the name of an EAPS domain.
seconds Specifies the number of seconds to wait between transmission of hello PDUs on the control VLAN (Virtual LAN). The range is 0 to 15 seconds.
milliseconds Specifies the number of milliseconds to wait between transmission of hello PDUs on the control VLAN. The range is 0 to 999 milliseconds.


Default is 1 second.

Usage Guidelines

Use the hellotime keyword and its associated parameters to specify the amount of time the master node waits between transmissions of hello PDUs on the control VLAN. Increasing the hellotime value results in a reduced load on the processor and less traffic on the EAPS ring.



The hello PDU timer value must be smaller than the fail timer value to prevent false failure detection. If you change the hello PDU timer, verify that the fail timer value remains larger.

This command applies only to the master node. If you configure the hello PDU timer for a transit node, the timer value is ignored. If you later reconfigure that transit node as the master node, the master node uses the configured hello PDU timer value.

In ExtremeXOS 11.0, the range is 1 to 15 seconds. If you are running ExtremeXOS 11.0 with the hello timer value greater than 15 seconds and you upgrade to ExtremeXOS 11.1 or later, you must modify the hello timer to be within the 1 to 15 seconds range.


The following example configures the hellotime value for the EAPS domain eaps_1 to 300 milliseconds:

configure eap seaps_1 hellotime 0 300


This command was first available in ExtremeXOS 11.0.

The range for the hello timer was changed to 1 to 15 seconds in ExtremeXOS 11.1. The default value for the hello timer remains unchanged.

Support for a specific number of milliseconds was added in ExtremeXOS 12.4.2.

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.