trill timer hello

Use trill timer hello to configure the Hello interval.

Use undo trill timer hello to restore the default.

Syntax

trill timer hello interval

undo trill timer hello

Default

The Hello interval is 10 seconds.

Views

Layer 2 Ethernet interface view, Layer 2 aggregate interface view

Predefined user roles

network-admin

mdc-admin

Parameters

interval: Specifies the Hello interval in the range of 3 to 255 seconds.

Usage guidelines

An RB advertises Hello frames at the Hello interval to maintain a TRILL adjacency. The shorter the Hello interval, the faster the network convergence. However, a shorter Hello interval consumes more system resources.

The adjacency holding time is obtained by multiplying the Hello interval by the Hello multiplier. The RB advertises the adjacency holding time to neighbors through Hello frames. If a neighbor does not receive any Hello frame from the RB before the adjacency holding time expires, it removes the TRILL adjacency with the RB.

The product of the Hello interval and the Hello multiplier cannot exceed 65535.

This command sets the Hello interval for the RB. The Hello interval of the DRB is 1/3 of the Hello interval of the RB, so that the DRB failures can be quickly detected.

Configuration in Layer 2 Ethernet interface view takes effect on only the current port. Configuration in Layer 2 aggregate interface view takes effect on the current interface and its member ports. Configuration on the member port of an aggregate interface takes effect after the member port leaves the aggregation group.

Examples

# Set the Hello interval to 20 seconds on Ten-GigabitEthernet 1/0/1.

<Sysname> system-view
[Sysname] interface ten-gigabitethernet 1/0/1
[Sysname-Ten-GigabitEthernet1/0/1] trill timer hello 20

Related commands

trill timer holding-multiplier