Cisco Catalyst 4500 Series EtherChannel Configuration Guide

About this manual

This document is a software configuration guide for the Cisco Catalyst 4500 series switch, specifically focusing on Chapter 15 regarding EtherChannel. It details how to use the command-line interface (CLI) to configure EtherChannel on Layer 2 or Layer 3 interfaces, providing guidelines, procedures, and configuration examples. The guide covers bundling individual Ethernet links into a single logical link to provide bandwidth up to 16 Gbps.

What's inside

• Overview of EtherChannel
• Understanding Port-Channel Interfaces
• Understanding How EtherChannels Are Configured
• EtherChannel Configuration Guidelines and Restrictions
• Understanding Manual EtherChannel Configuration
• Understanding PAgP EtherChannel Configuration
• Understanding IEEE 802.3ad LACP EtherChannel Configuration
• Configuring EtherChannel

Specifications

Frequently asked questions

What protocols can be used to form EtherChannels dynamically?

You can use the Port Aggregation Control Protocol (PAgP) or the Link Aggregation Control Protocol (LACP) to form EtherChannels dynamically.

Can PAgP and LACP protocols interoperate with each other?

No, PAgP and LACP do not interoperate; ports configured for one cannot form an EtherChannel with ports configured for the other.

What are the LACP port modes?

LACP supports passive and active modes, where passive ports respond to LACP packets and active ports initiate negotiations.