Allied Telesis C613-02013-00 manual To restore default port pathcost and priority, use the command

54 Rapier Switch User Guide

To restore default port pathcost and priority, use the command:

SET STP PORT={port-listALL} DEFAULT

When an STP is enabled in a looped or meshed network, it disables and enables particular ports belonging to it dynamically, to eliminate redundant links. All ports in a VLAN belong to the same STP, and their participation in STP configuration, and hence the possibility of them being elected to the STP’s active topology is enabled by default. To enable or disable particular ports, use the commands:

ENABLE STP PORT={port-listALL}

DISABLE STP PORT={port-listALL}

To display STP port information, use the command:

SHOW STP PORT[={port-listALL}]

Figure 15: Example output from the SHOW STP PORT command.

STP Port Information
------------------------------------------------------------
Port	1
State	Forwarding
STP	default
STP Status	ON
Port Priority	128
Port Identifier	8001
Pathcost	19
Designated Root	32768 : 00-00-cd-00-45-c7
Designated Cost	0
Designated Bridge ..... 32768 : 00-00-cd-00-a9-a5
Designated Port	8001
------------------------------------------------------------

Table 11: Parameters displayed in the output of the SHOW STP PORT command

Parameter	Meaning
Port	The number of the port.
State	The state of the port; one of “Disabled”, “Blocking”,
	“Listening”, “Learning” or “Forwarding”.
STP	The name of the STP that the port is a member of.
STP Status	The status of the STP that the port is a member of; one of
	“ON” or “OFF”.
Port Priority	The priority of the port. Used as part of the Port Identifier
	field, it forms the upper 8 bits of the Port Identifier field.
Port Identifier	The unique identifier of the port. This parameter is used to
	determine the root port or designated port of the switch.
Pathcost	The path cost of the port.
Designated Root	The unique Bridge Identifier of the root bridge, as recorded
	in the configuration BPDU.
Designated Cost	The designated cost for the port.
Designated Bridge	Either the unique Bridge Identifier of the switch, or the
	unique Bridge Identifier of the switch believed to be the
	designated bridge for the LAN to which the port is
	attached.

Rapier Switch Software Release 2.2.1 C613-02013-00 Rev A