User Manual

Table Of Contents
NETGEAR M4500 Series Switches CLI Command Reference Manual 587
5.26. Unidirectional Link Detection Commands
This section describes the commands you use to configure and display Unidirectional Link Detection (UDLD). The
purpose of the UDLD feature is to detect and avoid unidirectional links. A unidirectional link is a forwarding
anomaly in a Layer 2 communication channel in which a bi-directional link stops passing traffic in one direction.
5.26.1. udld enable (Global Config)
Use this command to enable UDLD globally on the switch.
Format udld enable
Default Disable
Mode Global Config
5.26.2. no udld enable (Global Config)
Use this command to disable UDLD globally on the switch.
Format no udld enable
Mode Global Config
5.26.3. udld message time
Use this command to configure the interval value (in seconds) between UDLD probe messages on ports that are
in the advertisement phase.
Format udld message time <7-90>
Default 15
Mode Global Config
5.26.4. no udld message time
For the interval between UDLD probe messages on ports that are in the advertisement phase, use this command
to restore the interval value to the default value.
Format no udld message time
Mode Global Config