Show rstp – Allied Telesis AT-S63 User Manual

Page 256

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Chapter 16: Rapid Spanning Tree Protocols Commands

256

Section III: Spanning Tree Protocols

SHOW RSTP

Syntax

show rstp [portconfig=

port

|portstate=

port

]

Parameters

portconfig

Displays the RSTP port settings. You can specify more
than one port at a time.

portstate

Displays the RSTP port status. You can specify more
than one port at a time.

Description

You can use this command to display the RSTP parameter settings. An
example of the display is shown in Figure 30.

Figure 30. Example of the SHOW RSTP Command

The bridge priority, bridge hello time, and bridge max age parameters will
have two values if RSTP is enabled on the stack (for example, Bridge
Forwarding .. 15/15). The first number is the configured value on the stack
for the parameter and the second is the value the stack obtained from the
root bridge and is currently using for the parameter. The stack displays
only the configured values for these parameters if spanning tree is not
enabled on the stack.

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

For definitions of the force version, bridge priority, hello time, forward
delay, and max age parameters, refer to “SET RSTP” on page 250.

The bridge Identifier parameter consists of the stack’s bridge priority value
and MAC address, separated by a slash (/). To change the stack’s priority
value, refer to “SET RSTP” on page 250. The MAC address of the stack
cannot be changed.

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

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