Avaya P580 - Manual (Page 154)

4-24 Avaya P550R, P580, P880, and P882 Multiservice Switch User Guide, Version v5.3.1
Chapter 4
Using the CLI
To configure spanning tree bridge ports using the CLI, enter the
following command from Configure mode:
<config># set port spanning-tree-mode {<mod-num> |
<mod-swport-range>}[...,{<mod-num> | <mod-swport-
range>}]{disable | enable}
Refer to the Command Reference Guide for the Avaya P550R, P580, P880,
and P882 Multiservice Switches, Version 5.3 for details about this
command.
Disabling Spanning Tree Mode for the Port
You can disable Spanning Tree mode for the port from either the
Web Agent or the CLI.
* Notes: When disabling the Spanning Tree Protocol for a port,
BPDUs received on that port are ignored and are not
generated. The port moves directly into the forwarding
state from the disabled state and does not trigger a
topology detection change.
It is recommended that you set Spanning Tree to per-
VLAN for IEEE 802.1Q or Multi-Layer trunking modes,
trunked ports. This prevents an entire link from being
blocked when there is a loop in one VLAN.
If you have an ATM Uplink module installed, and there
is a loop through the uplink, the ATM Uplink module
does not function properly if you use IEEE802.1D.