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 system-priority
lacp system-priority
To set the priority of the system for LACP, use the lacp system-priority command.
lacp system-priority priority
Syntax Description
Defaults Priority is set to 32768.
Command Modes Global configuration mode
Command History
Usage Guidelines You must assign each switch that is running LACP a system priority that can be specified automatically
or by entering the lacp system-priority command. The system priority is used with the switch MAC
address to form the system ID and is also used during negotiation with other systems.
Although this command is a global configuration command, the priority value is supported on port
channels with LACP-enabled physical interfaces.
When setting the priority, tthe higher numbers indicate lower priorities.
You can also enter the lacp system-priority command in interface configuration mode. After you enter
the command, the system defaults to global configuration mode.
Examples This example shows how to set the system priority:
Switch(config)# lacp system-priority 23748
Switch(config)#
Related Commands
priority Priority of the system; 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