Cisco 500 Series Administration Guide

Port Management: Unidirectional Link Detection
Before You Start
207 Cisco 500 Series Stackable Managed Switch Administration Guide
11
- Fiber interfaces are in the global UDLD state.
- Non-fiber interfaces are in the disable state.
Before You Start
No preliminary tasks are required.
Common UDLD Tasks
This section describes some common tasks to setup UDLD.
Workflow1: To globally enable UDLD on fiber ports, perform the following
steps:
STEP 1 Open the Port Management > UDLD Global Settings page.
a. Enter the Message Time.
b. In the Fiber Port UDLD Default State field, enter either Disabled, Normal or
Aggressive as the global UDLD status.
STEP 2 Click Apply
Workflow2: To change the UDLD configuration of a fiber port or to enable
UDLD on a copper port, perform the following steps:
STEP 1 Open the Port Management > UDLD Global Settings page.
a. Select a port.
b. Select either Default, Disabled, Normal or Aggressive as the port’s UDLD
status. If you select Default, the port receives the global setting.
STEP 2 Click Apply.

Cisco 500 Series Specifications

General

Model	Cisco 500 Series
Category	Switch
Mounting	Rack-mountable
Management	Web-based, CLI, SNMP
Ports	24, 48
Port Speed	10/100/1000 Mbps
PoE Support	Available on some models
Switching Capacity	Up to 176 Gbps
MAC Address Table Size	16, 000 entries
Security	ACLs, 802.1X
Quality of Service (QoS)	Yes
Dimensions	Varies by model
Weight	Varies by model
Humidity	10% to 90% non-condensing
Power Supply	Internal
Power Consumption	Varies by model
Jumbo Frame Support	Up to 9216 bytes