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
lacp port-priority
lacp port-priority
To set the LACP priority for the physical interfaces, use the lacp port-priority command.
lacp port-priority priority
Syntax Description
Defaults Priority is set to 32768.
Command Modes Interface configuration mode
Command History
Usage Guidelines You must assign each port in the switch a port priority that can be specified automatically or by entering
the lacp port-priority command. The port priority is used with the port number to form the port
identifier. The port priority is used to decide which ports should be put in standby mode when there is a
hardware limitation that prevents all compatible ports from aggregating.
Although this command is a global configuration command, the priority value is supported only on port
channels with LACP-enabled physical interfaces.This command is supported on LACP-enabled
interfaces.
When setting the priority, the higher numbers indicate lower priorities.
Examples This example shows how to set the priority for the interface:
Switch(config-if)# lacp port-priority 23748
Switch(config-if)#
Related Commands
priority Priority for the physical interfaces; valid values are from 1 to 65535.
Release Modification
12.1(13)EW This command was introduced on the Catalyst 4500 series switches.
Command Description
channel-group Assigns and configure an EtherChannel interface to an
EtherChannel group.
channel-protocol Enables LACP or PAgP on an interface.
lacp system-priority Sets the priority of the system for LACP.
show lacp Displays LACP information.

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