3com 4500 PWR 26-PORT User Manual

C

HAPTER

 10: U

SING

 RSTP C

OMMANDS

This section describes how to use the Rapid Spanning Tree Protocol (RSTP) 
configuration commands on your Switch.

display stp [ interface interface_list ]

All views 

interface interface_list:

 Specifies the Ethernet port list, including multiple 

Ethernet ports. Expressed as 

interface_num | interface_name } [ to { interface_type interface_num 

. 

For details about 

 and 

, refer 

to the 

 command in this guide. 

&<1-10>:

 Indicates the preceding parameter can be input up to 10 times. 

Use the 

 command to view the status information of the current 

RSTP. 

Use the 

command to view summary information of the STP 

state of the Switch. 

Related command: 

.

To display the RSTP status information for Ethernet1/0/2, enter the following:

<4500>display stp interface Ethernet1/0/2

Protocol mode: IEEE RSTP

 The bridge ID (Pri.MAC): 32768.00e0-fc00-3900

 The bridge times: Hello Time 2 sec, Max Age 20 sec, Forward Delay 15 

sec

 Root bridge ID(Pri.MAC): 32768.00e0-fc00-3900

 Root path cost: 0

 Bridge bpdu-protection: disabled

Default path cost standard is dot1t

Timeout factor: 3

 Port 2 (Ethernet1/0/2) of bridge is DOWN

   Port spanning tree protocol: enabled

   Port role: Disabled Port

   Port path cost: 2000000

   Port priority: 128

   Designated bridge ID(Pri.MAC): 32768.00e0-fc00-3900

   The Port is a non-edged port

   Connected to a non-point-to-point LAN segment

   Maximum transmission limit is 3  Packets / hello time