Cisco Catalyst 4500 Series Command Reference Guide

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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
debug etherchnl
debug etherchnl
To debug EtherChannel, use the debug etherchnl command. To disable the debugging output, use the
no form of this command.
debug etherchnl [all | detail | error | event | idb | linecard]
no debug etherchnl
Syntax Description
Defaults The default settings are as follows:
• Debug is disabled.
• All messages are displayed.
Command Modes Privileged EXEC mode
Command History
Usage Guidelines If you do not specify a keyword, all debug messages are displayed.
Examples This example shows how to display all the EtherChannel debug messages:
Switch# debug etherchnl
PAgP Shim/FEC debugging is on
22:46:30:FEC:returning agport Po15 for port (Fa2/1)
22:46:31:FEC:returning agport Po15 for port (Fa4/14)
22:46:33:FEC:comparing GC values of Fa2/25 Fa2/15 flag = 1 1
22:46:33:FEC:port_attrib:Fa2/25 Fa2/15 same
22:46:33:FEC:EC - attrib incompatable for Fa2/25; duplex of Fa2/25 is half, Fa2/15 is full
22:46:33:FEC:pagp_switch_choose_unique:Fa2/25, port Fa2/15 in agport Po3 is incompatable
Switch#
This example shows how to display the EtherChannel IDB debug messages:
Switch# debug etherchnl idb
Agport idb related debugging is on
Switch#
all (Optional) Displays all EtherChannel debug messages.
detail (Optional) Displays the detailed EtherChannel debug messages.
error (Optional) Displays the EtherChannel error messages.
event (Optional) Debugs the major EtherChannel event messages.
idb (Optional) Debugs the PAgP IDB messages.
linecard (Optional) Debugs the SCP messages to the module.
Release Modification
12.1(8a)EW Support for this command was introduced on the Catalyst 4500 series switch.

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