Allied Telesis AR400 manual Appendix STP state, Switch

Appendix: STP state > Switch 1

Appendix: STP state

In most of the examples in this document, the switches are configured in a loop and are all in the same VLAN. To prevent packets from looping the network, STP is configured. The STP state on each switch is given in the following output screens.

Switch 1

Note that port 50 on switch 1 is in a discarding state.

Manager Switch 1> show stp=default port=49-50

STP Port Information
------------------------------------------------------------------------
STP	default
STP Status	ON
Port	49
RSTP Port Role	Root
State	Forwarding
Point To Point	Yes (Auto)
Port Priority	128
Port Identifier	8031
Pathcost	20000 (auto configured)
Designated Root	32768 : 00-00-cd-01-4b-10
Designated Cost	0
Designated Bridge ...	32768 : 00-00-cd-01-4b-10
Designated Port	801a
EdgePort	No
VLAN membership	1
Counters:
Loopback Disabled	0
Port	50
RSTP Port Role	Alternate
State	Discarding
Point To Point	Yes (Auto)
Port Priority	128
Port Identifier	8032
Pathcost	20000 (auto configured)
Designated Root	32768 : 00-00-cd-01-4b-10
Designated Cost	20000
Designated Bridge ...	32768 : 00-00-cd-02-e5-40
Designated Port	801a
EdgePort	No
VLAN membership	1
Counters:
Loopback Disabled	0
------------------------------------------------------------------------

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