December 2005 © Foundry Networks, Inc. 4 - 1
Chapter 4
Configuring Basic Layer 2 Features
The procedures in this chapter describe how to configure basic Layer 2 parameters.
Foundry devices are configured at the factory with default parameters that allow you to begin using the basic
features of the system immediately. However, many of the advanced features such as VLANs or routing protocols
for the device must first be enabled at the system (global) level before they can be configured. If you use the
Command Line Interface (CLI) to configure system parameters, you can find these system level parameters at the
Global CONFIG level of the CLI.
This chapter contains the topics listed in Table 4.1
NOTE:
• Before assigning or modifying any router parameters, you must assign the IP subnet (interface) addresses for
each port.
• For information about configuring IP addresses, DNS resolver, DHCP assist, and other IP-related parameters,
see the chapter “Configuring IP” on page 16-1.
• For information about the Syslog buffer and messages, see “Using Syslog” on page A-1.
Table 4.1: List of Basic Layer 2 Features
Basic Layer 2 Feature See Page
About port regions 4-2
Spanning Tree Protocol (STP) 4-2
Aging time for learned MAC address entries 4-3
Static, non-aging MAC address entries 4-3
Port-based VLANs 4-4
MAC address filters 4-5
Port locks 4-7
System parameters 4-8
Mirror ports (for traffic diagnosis and troubleshooting) 4-12
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