Cisco 300 Series User Manual

UDLD Commands
OL-32830-01 Command Line Interface Reference Guide 1026
54
• Port UDLD mode—The interface UDLD mode (normal or aggressive).
• Port Current state—The UDLD operational state: interface UDLD mode
(normal or aggressive).
- Disabled—UDLD is disabled on the port by the udld port disable
command.
- Shutdown—UDLD is enabled on the port and the port operational state
is DOWN.
- Detection—UDLD id detecting the link state.
- Bidirectional—The link is bidirectional.
- Undetermined—The link state is undetermined - no UDLD message has
been received on the port.
• Neighbor Device ID—The device ID of the neighbor.
• Neighbor MAC—The MAC address of the neighbor.
• Neighbor Device name—The Device name of the neighbor.
• Neighbor Port ID—The device port ID of the neighbor on which the recent
UDLD message was sent.
• Neighbor Message Time—The message time of the neighbor.
• Neighbor Current State—The current state of the neighbor:
- Bidirectional—The UDLD messages received from the neighbor contain
the Device ID and Port ID of the switch in the Echo TLV.
- Undetermined—The UDLD messages received from the neighbor do
not contain the Device ID and Port ID of the switch in the Echo TLV.
• Neighbor Expiration Time—Left time in seconds until the current neighbor
state expires.
Example 2—This example shows how to display the UDLD state for one given
interface:
switchxxxxxx# show udld gi11
Global UDLD mode: normal
Message Time: 15 sec(default)
Interface
gi11

Cisco 300 Series Specifications

General

Model	Cisco 300 Series
Category	Switch
Dimensions	Varies by model
Weight	Varies by model
Power over Ethernet (PoE)	Available on select models
Management	Web-based GUI, SNMP, CLI
VLANs	Up to 256
Security Features	ACLs, 802.1X, Port Security
Humidity	10% to 90% non-condensing
Ports	8, 16, 24, 48