asked on

Cisco Switch - spanning tree command

I have two of the same switches
Cisco Catalayst 2950

One of them takes the following commands, while the other one doesn't

spanning-tree mode pvst
no spanning-tree optimize bpdu transmission
spanning-tree extend system-id

I get the following error on switch 2, which is supposed to work as the backup for switch1

Switch2(config)#spanning-tree mode pvst
^
% Invalid input detected at '^' marker.

Please tell me how I can issue the three spanning-tree commands to the second switch.
Thanks,

RPPreacher

Can you do a 'show version' command on both switches?

Please post here.

jibranilyas

ASKER

switch1 is IOS ver 12.1
switch2 is IOS ver 12.0

Switch1:
Cisco Internetwork Operating System Software
IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(20)EA1a, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2004 by cisco Systems, Inc.
Compiled Mon 19-Apr-04 20:58 by yenanh
Image text-base: 0x80010000, data-base: 0x805A8000

Switch2:
Cisco Internetwork Operating System Software
IOS (tm) C2950 Software (C2950-C3H2S-M), Version 12.0(5.3)WC(1), MAINTENANCE INTERIM SOFTWARE
Copyright (c) 1986-2001 by cisco Systems, Inc.
Compiled Mon 30-Apr-01 07:56 by devgoyal
Image text-base: 0x80010000, data-base: 0x8031A000

So, upgrading is the only way out?

ASKER CERTIFIED SOLUTION

RPPreacher

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

RPPreacher

The Cisco Network Assistant is a very intuitive GUI for upgrading your model of switch. Point and click.

http://www.cisco.com/en/US/customer/products/ps5931/products_getting_started_guide_chapter09186a00802b7d9d.html

jibranilyas

ASKER

thanks guys,

Here is what i did

Step1 - loaded tftp server on my machine
Step2 - copied the flash image of switch1 on tftp server

Step 3 - logged in to switch 2
Step 4 - pulled the flashimage of switch1 from tftp server (Step 2)

now, i want to use the new image (c2950-i6q4l2-mz.121-20.EA1a.bin) on my switch... how do i do that?
Here is the output of "show flash" command

(Directory of flash:/

2 -rwx 1674921 May 01 2001 01:09:51 c2950-c3h2s-mz.120-5.3.WC.1.bin
3 -rwx 241 Jan 01 1970 11:01:06 env_vars
4 drwx 10176 Jan 01 1970 11:01:43 html
5 -rwx 3036020 Mar 01 1993 12:11:00 c2950-i6q4l2-mz.121-20.EA1a.bin
165 -rwx 25 Mar 01 1993 11:10:09 snmpengineid
166 -rwx 2833 Mar 01 1993 11:10:15 config.text
7741440 bytes total (1740800 bytes free)

RPPreacher

from the command line

switch(config)# boot system flash:c2950-i6q4l2-mz.121-20.EA1a.bin

jibranilyas

ASKER

^ that worked...
I am all set now

the commands worked on the second switch after the upgrade.

Thank you