Avaya 580, 882 CLI Commands

7-20 User Guide for the Avaya P580 and P882 Multiservice Switches, v6.1
Chapter 7
CLI Commands Use the following commands to configure a Spanning Tree bridge port:
■To set the priority of the bridge port, (configure)# set port
spantree priority <mod-swport-range> [...,<mod-swport-range>]
<bport-priority> {802.1D | vlan {<vlan-id> | name <vlan-name>}
■To set the path cost for the bridge port, (configure)# set
spantree portcost <mod-swport-range> [...,<mod-swport-range>]
<port-cost-value> {802.1D | vlan {<vlan-id> | name <vlan-
name>}}
■To force the bridge port to send one RSTP BPDU out the port,
(configure)# set port spantree force-protocol-mig ra tion
<mod-swport-range> [...,<mod-swport-range>] {802.1D | vlan
{<vlan-id> | name <vlan-name>}}
Force BPDU
Migration Clicking SEND RSTP BPDU in this field forces the bridge port to send out RSTP BPDUs. By forcing a
bridge port to send RSTP BPDUs, you can determine
whether legacy 802.1D bridges are present on a LAN
segment.
If you remove a legacy 802.1D bridge from a segment,
other RSTP bridges on the segment cannot detect the
removal so they continue sending STP BPDUs.
However, if you force a bridge port to send RSTP
BPDUs, they trigger other R STP bridges on the segment
to generate RSTP BPDUs again.
If the switch is running common Spanning Tree, this
command has no effect.
Table 7-5. Spanning Tree Port Configuration
Field Definition
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