Issue 1 July 2006 111
Chapter 8: Avaya C360 Layer 2 Features
This section describes the C360 Layer 2 features. It provides the basic procedures for
configuring the C360 for Layer 2 operation.
The C360 supports a range of Layer 2 features. Each feature has CLI commands associated
with it. These commands are used to configure, operate, or monitor switch activity for each of
the Layer 2 features.
This section of the C360 Installation and Maintenance Guide explains each of the features.
Specifically, the topics discussed here include:
Ethernet
VLANs
IEEE 802.1x (Port Based Network Access Control)
Spanning Tree Protocol
MAC Security
LAG (Link Aggregate Group)
Port Redundancy
IP Multicast Filtering
RMON
SMON
Port Mirroring
Weighted Queuing
LLDP Server

Ethernet

Ethernet is one of the most widely implemented LAN standards. It uses the Carrier Sense
Multiple Access with Collision Detection (CSMA/CD) access method to handle simultaneous
demands. CSMA/CD is a multi-user network allocation procedure in which every station can
receive the transmissions of every other station. Each station waits for the network to be idle
before transmitting and each station can detect collisions by other stations.
The first version of Ethernet supported data transfer rates of 10 Mbps, and is therefore known
as 10BASE-T (over copper) or 10BASE-FX (over fiber).