Nortel Networks 40M2420 manual Maint/fdb, Forwarding Database Maintenance

Alteon OS Command Reference

/maint/fdb

Forwarding Database Maintenance

[FDB Manipulation Menu]
find	- Show a single FDB entry by MAC address
port	- Show FDB entries for a single	port
trunk	- Show FDB entries for a single	trunk
vlan	- Show FDB entries for a single	VLAN
dump	- Show all FDB entries	static entries
clear	- Clear entire FDB, then re-add

The Forwarding Database Manipulation Menu can be used to view information and to delete a MAC address from the forwarding database or clear the entire forwarding database. This is helpful in identifying problems associated with MAC address learning and packet forwarding decisions.

Table 9-3FDB Manipulation Menu Options (/maint/fdb)

Command Syntax and Usage

find <MAC address> [<VLAN>]

Displays a single database entry by its MAC address. You are prompted to enter the MAC address of the device. Enter the MAC address using the xx:xx:xx:xx:xx:xx format (such as 08:00:20:12:34:56) or xxxxxxxxxxxx format (such as 080020123456).

port <port alias or number>

Displays all FDB entries for a particular port.

trunk <Trunk Group number>

Displays all FDB entries for a particular port.

vlan <VLAN number (1-4095)>

Displays all FDB entries on a single VLAN.

dump

Displays all entries in the Forwarding Database. For details, see page 77.

clear

Clears the entire Forwarding Database from switch memory.

40M2420, April 2007 Chapter 9: The Maintenance Menu „ 343