Chapter 6 Configuring STP and RSTP on the ML-Series Card

Verifying and Monitoring STP and RSTP Status

Table 6-6 Commands for Displaying Spanning-Tree Status

 

 

 

 

Command

 

Purpose

 

 

 

 

 

 

 

 

 

 

 

 

 

ML_Series# show spanning-tree

 

Displays detailed STP or RSTP information.

 

 

 

 

 

 

 

 

 

 

 

 

 

ML_Series# show spanning-tree

 

Displays brief summary of STP or RSTP information.

 

 

 

 

 

brief

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ML_Series# show spanning-tree

 

Displays STP or RSTP information for the specified interface.

 

 

 

 

 

interface interface-id

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ML_Series# show spanning-tree

 

Displays a summary of port states or displays the total lines of

 

 

 

 

 

summary [totals]

 

the STP or RSTP state section.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note

The show spanning-tree interface interface-idprivileged EXEC command displays information only

 

 

 

 

 

if the port is in a link-up operative state. Otherwise, you can use the show running-config interface

 

 

 

 

 

privileged EXEC command to confirm the configuration.

 

 

 

 

 

 

 

 

 

 

 

 

Examples of the show spanning-treeprivileged EXEC commands are shown here:

 

 

 

 

 

Example 6-1 show spanning-tree Commands

 

 

 

 

 

ML_Series# show spanning-tree brief

 

 

 

 

 

 

 

 

Bridge group 1 is executing the rstp compatible Spanning Tree protocol

 

 

 

 

 

Bridge Identifier has priority 32768, sysid 1, address 000b.fcfa.339e

 

 

 

 

 

Configured hello time 2, max age 20, forward delay 15

 

 

 

 

 

We are the root of the spanning tree

 

 

 

 

 

Topology change flag not set, detected flag not set

 

 

 

 

 

Number of topology changes 1 last change occurred 1w1d ago

 

 

 

 

 

from POS0.1

 

 

 

 

 

 

 

 

Times: hold 1, topology change 35, notification 2

 

 

 

 

 

hello 2, max age 20, forward delay 15

 

 

 

 

 

Timers: hello 0, topology change 0, notification 0, aging 300

 

 

 

 

 

Port 3 (FastEthernet0) of Bridge group 1 is designated disabled

 

 

 

 

 

Port path cost 19, Port priority 128, Port Identifier 128.3.

 

 

 

 

 

Designated root has priority 32769, address 000b.fcfa.339e

 

 

 

 

 

Designated bridge has priority 32769, address 000b.fcfa.339e

 

 

 

 

 

Designated port id is 128.3, designated path cost 0

 

 

 

 

 

Timers: message age 0, forward delay 0, hold 0

 

 

 

 

 

Number of transitions to forwarding state: 0

 

 

 

 

 

Link type is point-to-point by default

 

 

 

 

 

BPDU: sent 0, received 0

 

 

 

 

 

 

 

 

ML_Series# show spanning-tree interface fastethernet 0

 

 

 

 

 

Port 3 (FastEthernet0) of Bridge group 1 is designated disabled

 

 

 

 

 

Port path cost 19, Port priority 128, Port Identifier 128.3.

 

 

 

 

 

Designated root has priority 32769, address 000b.fcfa.339e

 

 

 

 

 

Designated bridge has priority 32769, address 000b.fcfa.339e

 

 

 

 

 

Designated port id is 128.3, designated path cost 0

 

 

 

 

 

Timers: message age 0, forward delay 0, hold 0

 

 

 

 

 

Number of transitions to forwarding state: 0

 

 

 

 

 

Link type is point-to-point by default

 

 

 

 

 

BPDU: sent 0, received 0

 

 

 

 

 

 

 

 

ML_Series# show spanning-tree summary totals

 

 

 

 

 

Switch is in pvst mode

 

 

 

 

 

 

 

 

Root bridge for: Bridge group 1-Bridge group 8

 

 

 

 

 

Cisco ONS 15310-CL and Cisco ONS 15310-MA Ethernet Card Software Feature and Configuration Guide R8.5

 

 

 

 

 

 

 

 

 

 

78-18133-01

 

 

 

 

 

 

6-21

 

 

 

 

 

 

 

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Cisco Systems 15310-CL manual Displays detailed STP or Rstp information, Displays brief summary of STP or Rstp information
Page 88 Page 90

15310-CL, 15310-MA specifications

Cisco Systems has established itself as a leader in the networking domain, offering a wide array of solutions to meet the needs of modern businesses. Among its impressive product lineup are the Cisco 15310-CL and 15310-MA routers, designed to provide advanced network performance and reliability.

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Both models benefit from Cisco's commitment to security and manageability, offering features like enhanced encryption protocols and user authentication mechanisms that help safeguard networks against threats. Additionally, they can be managed through Cisco’s intuitive software tools, simplifying configuration and monitoring tasks for IT administrators.

The Cisco 15310-CL and 15310-MA are ideal solutions for businesses seeking to enhance their network infrastructure, ensuring firms can keep pace with evolving technology demands while maintaining a focus on security and performance. Their combination of advanced features, modular capabilities, and robust support makes them valuable assets in the networking landscape.
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