Cisco Catalyst 4500 Series Software Configuration Guide

Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS
Chapter 9 Configuring Interfaces
Monitoring and Maintaining the Interface
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
The following example displays the configuration and logging message output for link status and trunk status logging events:
//
// The global link status and trunk status logging events are enabled.
//
Switch# show running | include logging
show running | include logging
logging event link-status global
logging event trunk-status global
Switch#
//
// The interface link status and trunk status logging settings
// are set to default values, which follow regardless of the global
// setting.
//
Switch# show running interface g1/4
Building configuration...
Current configuration: 97 bytes
!
interface GigabitEthernet1/4
switchport trunk encapsulation dot1q
switchport mode trunk
end
Switch#
//
// The trunk status logging messages for the interface are
// displayed whenever the interface trunking status is changed.
// Here we change the other end node's trunking encapsulation
// from dot1q to isl.
//
3d00h: %DTP-5-ILGLCFG: Illegal config(on,isl--on,dot1q) on Gi1/4
3d00h: %DTP-5-ILGLCFG: Illegal config(on,isl--on,dot1q) on Gi1/4
3d00h: %DTP-5-ILGLCFG: Illegal config(on,isl--on,dot1q) on Gi1/4
//
// The link and trunk status logging message for the interface
// are displayed whenever the interface link status is changed.
// Here we do a "shut" and "no shut" on the other end link node.
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