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Show stp – Allied Telesis AT-S63 User Manual

Page 473

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AT-S63 Management Software Command Line Interface User’s Guide

Section V: Spanning Tree Protocols

473

SHOW STP

Syntax

show stp [port=

port

]

Parameter

port

Specifies the port whose STP parameters you want to
view. You can view more than one port at a time.You
can specify the ports individually (for example, 5, 7,
22), as a range (for example, 18-23), or both (for
example, 1, 5, 14-22).

Description

This command displays the current values for the STP parameters. An
example of the display is shown in Figure 46.

Figure 46. SHOW STP Command

The bridge priority, bridge hello time, and bridge max age parameters
display two values when STP is enabled on the switch (for example,
Bridge Forwarding Delay .. 15/15). The first number is the configured value
on the switch for the parameter and the second is the value the switch
obtained from the root bridge and is actually using for the parameter. The
switch displays only the configured values when spanning tree is not
activated on the switch.

The Status parameter displays whether STP is enabled or disabled on the
switch.

For definitions of the bridge priority, hello time, forwarding delay, and max
age parameters, refer to “SET STP” on page 466.

The bridge Identifier parameter consists of the switch’s bridge priority
value and MAC address, separated by a slash (/). To change the switch’s
priority value, refer to “SET STP” on page 466. The MAC address of the
switch cannot be changed.the MAC address of the switch.

Status ...................... Enabled
Bridge Priority ............. 32768 (In multiples of 4096: 8)
Bridge Hello Time ........... 2/2 (Configured/Actual)
Bridge Forwarding Delay ..... 15/15 (Configured/Actual)
Bridge Max Age .............. 20/20 (Configured/Actual)
Bridge Identifier ........... 32768/00:21:46:A7:B4:11
Root Bridge ................. 32768/00:21:46:A7:B4:11
Root Path Cost .............. 0