Cisco Nexus 5500 Series - Show Udld

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Cisco Nexus 5500 Series NX-OS Layer 2 Interfaces Command Reference
OL-27880-02
Chapter Show Commands
show udld
show udld
To display the Unidirectional Link Detection (UDLD) information for a switch, use the show udld
command.
show udld [ethernet slot/[QSFP-module/]port | global | neighbors]
Syntax Description
Command Default None
Command Modes EXEC mode
Command History
Examples This example shows how to display UDLD information for all interfaces:
switch# show udld
Interface Ethernet1/1
--------------------------------
Port enable administrative configuration setting: device-default
Port enable operational state: enabled
Current bidirectional state: bidirectional
Current operational state: advertisement - Single neighbor detected
Message interval: 15
Timeout interval: 5
Entry 1
----------------
Expiration time: 41
Cache Device index: 1
Current neighbor state: bidirectional
Device ID: FLC12280095
Port ID: Ethernet1/1
Neighbor echo 1 devices: SSI130205RT
Neighbor echo 1 port: Ethernet1/1
ethernet
slot/[QSFP-module/]port
Displays UDLD information for an Ethernet IEEE 802.3z interface.
The slot number is from 1 to 255. The QSFP-module number is from
1 to 4. The port number is from 1 to 128.
Note The QSFP-module number applies only to the QSFP+ Generic
Expansion Module (GEM).
global Displays the UDLD global status and configuration information on all
interfaces.
neighbors Displays information about UDLD neighbor interfaces.
Release Modification
6.0(2)N1(1) Support for the QSFP+ GEM was added.
5.2(1)N1(1) This command was introduced.