User Manual

NETGEAR M4500 Series Switches CLI Command Reference Manual 590
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Display Message for a specified slot and port
Example: The following example shows the CLI display output for the command show udld 0/3.
(M4500-32C) #show udld 0/3
Port Admin Mode UDLD Mode UDLD Status
------- ---------- ----------- --------------
0/3 Enabled Aggressive Bidirectional
Host device ID: NTGROZ534000A
Host port ID: 0/3
Echo entry 1
--------------
Parameter
Definition
Port
The identifying port of the interface.
Admin Mode
The administrative mode of UDLD configured on this interface. The mode is
either enabled or disabled.
UDLD Mode
The UDLD mode configured on this interface. The mode is either normal or
aggressive.
UDLD Status
The status of the link as determined by UDLD. The options are:
 Undetermined – UDLD has not collected information to determine the
state of the link.
 Not applicable – UDLD is disabled, either globally or on the port.
 Shutdown – UDLD has detected a unidirectional link and shutdown the
port. That is, the port is in an errDisabled state.
 Bidirectional – UDLD has detected a bidirectional link.
 Undetermined (Link Down) – The port would transition into this state
when the port link physically goes down due to any reasons other than the
port has been put into D-Disable mode by the UDLD protocol on switch.