Cisco Catalyst 4500 Series Configuration Guide

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Software Configuration Guide—Release IOS XE 3.3.0SG and IOS 15.1(1)SG
OL-25340-01
Chapter 7 Configuring Interfaces
Monitoring and Maintaining the Interface
Configuring Link Status Event Notification for an Interface
To enable or disable a link status logging event, enter one of the following commands:
Global Settings
You can also provide a global configuration for the corresponding logging event. A global configuration
provides default logging settings for all interfaces. The [no] logging event link-status global command
lets you enable or disable the interface link status logging for the entire switch. The [no] logging event
trunk-status global command lets you enable disable interface trunk status logging for the entire
switch.
Each interface link status logging event, if not configured at the interface level, uses the following global
logging event setting:
• logging event link-status global—Link status logging event is enabled, if not configured on the
interface.
• no logging event link-status global—Link status logging event is disabled, if not configured on the
interface.
The interface trunk status logging event has similar global configurations.
Configuring a Switch Global Link Status Logging Event
To enable or disable the global link status logging event, enter one of the following commands:
Examples
The following example displays a summary of the operating states for the interface logging event using
different combinations of global and interface logging settings:
global setting interface setting actual logging state
-------------- ----------------- --------------------
on on on
off on on
on off off
off off off
on default(use-global) on
off default(use-global) off
Command Purpose
Switch(config-if)# logging event
link-status
Enables interface link status logging.
Switch(config-if)# no logging event
link-status
Disables interface link status logging.
Switch(config-if)# logging event
link-status use-global
Specifies the global default setting for interface
link status logging.
Command Purpose
Switch(config-if)# logging event link-status
global
Enables global link status logging.
Switch(config-if)# no logging event
link-status global
Disables global link status logging.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E