Reference Guide

Column Meaning
Description The alpha-numeric description of the interface created by the descriptioncommand (see
description on page 279).
MAC address The MAC address of the port. The format is 6 two-digit hexadecimal numbers that are separated by
colons, for example 01:23:45:67:89:AB.
Bit Oset Val The bit oset value.
The following example shows CLI display output for the command.
(Extreme 220) (Switching) #show port description 0/1
Interface...........0/1
ifIndex.............1
Description.........
MAC address.........00:10:18:82:0C:10
Bit Offset Val......1
Spanning Tree Protocol Commands
This section describes the commands used to configure STP (Spanning Tree Protocol). STP helps
prevent network loops, duplicate messages, and network instability.
Note
STP is enabled on the switch and on all ports and LAGs by default.
Note
If STP is disabled, the system does not forward BPDU messages.
spanning-tree
This command sets the spanning-tree operational mode to enabled.
Default
Enabled
Format spanning-tree
Mode Global Config
no spanning-tree
This command sets the spanning-tree operational mode to disabled. While disabled, the spanning-tree
configuration is retained and can be changed, but is not activated.
Format
no spanning-tree
Mode Global Config
Switching Commands
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