Solved

Cisco switch 2950G  IOS 12.2 how do I confirm rapid spanning-tree (RAPID-PVST) is running

Posted on 2008-06-16
2
528 Views
Last Modified: 2008-11-04
Ona Cisco 2960G switch running IOS 12.2  spannign tree is running and if I issue a  "sh spanning tree" command I get output as follows : -
 Spanning tree enabled protocol ieee
 Root ID    Priority    24586
            Address     0016.4704.1e80
            Cost        19
            Port        1 (GigabitEthernet0/1)
            Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

 Bridge ID  Priority    32778  (priority 32768 sys-id-ext 10)
            Address     0019.0692.a100
            Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec
            Aging Time 300

BUT, it doesnt tell me what version is running. How do I confirm Rapid-PVST is running.
Happy on how to turn it on by issuing    "spanning-tree mode rapid-pvst "
If it turns out it is not running and, I decide to turn it on what would be the effect if any. Would I experience any down time whenI turn this on?
0
Comment
Question by:ccfcfc
  • 2
2 Comments
 
LVL 50

Expert Comment

by:Don Johnston
ID: 21792614
"Spanning tree enabled protocol ieee" means 802.1d spanning tree.

If you were running 802.1w rapid spanning tree it would say "rapid pvs"
0
 
LVL 50

Accepted Solution

by:
Don Johnston earned 500 total points
ID: 21792621
Changing spanning tree modes would result in a re-convergence of the network so you could experience a loss of connectivity. I would wait for a maintenance window or at least a slow period.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

The worst thing when starting a new job is when the previous Network Administrator left behind no documentation. How do you get into the devices? If you've been in this situation or just accidently mistyped your password, this article will hopefully…
This tutorial will go through the steps required to write a script that will back up the configuration settings of a HP-ProCurve switch. You will need to get the following things to follow this tutorial: Telnet Scripting Tool e.g. TST10.exe …
Established in 1997, Technology Architects has become one of the most reputable technology solutions companies in the country. TA have been providing businesses with cost effective state-of-the-art solutions and unparalleled service that is designed…
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit https://www.mail-signatures.com/articles/signature-templates/?sts=6651 If you want to manage em…

792 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question