07-29-2011 07:33 AM - edited 03-07-2019 01:27 AM
I have a stack of 4 2960s switches. 2 of the for have no stacking issues. If I remove either the 3rd or 4th switch from the stack (physically remove stacking cables), I get the following when I issue a sho sw cmd:
CHEE_MDF_2960S_STACK>sho sw
Switch/Stack Mac Address : 04c5.a4cc.7b80
H/W Current
Switch# Role Mac Address Priority Version State
----------------------------------------------------------
1 Member 0000.0000.0000 0 1 Provisioned
*3 Master 04c5.a4cc.7b80 1 1 Ready
4 Member 04c5.a4cc.b200 1 1 Ready
I do see that the two switches with issue are a different part # (WS-C2960S-48TS-L V03...the ones that stack without issue end in V03). If I console into the individual switch, it indicates it cannot find a bootable image. Any ideas?
07-29-2011 08:49 AM
You can try going to rommon mode of that switch where u get "cannot find a bootable image" message and boot with proper image ? Something like recovering the switch with new IOS.
Can u pls post us following details:
1. Full part number of all 4 switches
2. IOS images available on all 4 switches
and also boot variable.
07-29-2011 09:10 AM
Part numbers as follows:
Switch 1- WS-C2960S-48TS-L V03
Switch 2- WS-C2960S-48TS-L V03
Switch 3- WS-C2960S-48TS-L V02
Switch 4- WS-C2960S-48TS-L V02
IOS on working 2 switches (ending in V03) C2960S-UNIVERSALK9-M Version 12.2 (55) SE2 Release Software FC1
IOS on other 2 is 12.2 (53r) SE Release Software (fc3)
Not sure about boot variable and rommon mode. Can you help me with that? Thanks.
07-29-2011 10:08 AM
Hi Sean,
Your hardware parts has no isuse. You can stack all 4 together. But you must have same IOS version to stack those switches. Since you have version differences you are not able to stack all 4 of them.
Boot your 2 switches whose version os 12.2(53r) as standalone switch and then upgrade their IOS to 12.2(55)SE2. Copy the IOS to your flash from tftp and upgrade.
Once you have all 4 switches running with version 12.2 (55) SE2 then the stack of 4 switches can be easily formed.
And regarding rommon mode you asked about,
follow this link guide and you should be able to load an image to the switch incase if you dont have any image on the flash.
http://www.cisco.com/en/US/products/hw/switches/ps628/products_tech_note09186a0080169696.shtml
Regards,
pls rate useful posts.
07-29-2011 11:42 AM
I have seperated the two switches running 12.2(53r) from the stack and made them standalone. Switch boots to the switch: prompt. I get an error that the system is unable to automatically. Boot environment variable needs to be set to a bootable image. Upon further investigation, if I do a dir cmd, there is a subdirectory in flash named update. Inside this directory is the 12.2(55) SE2 file. The boot error indicated it could not find this file in flash. Do I just need to copy this to flash?
07-29-2011 09:14 PM
Yes, if thats a valid image file in that directory then either you can point your boot paramketer to that file or copy the image to flash: OR else you can load a image to flash through xmodem method if you do not have a valid image.
When you are modifying the new boot parameter, make sure you remove the earlier configured boot statments else switch will fail to boot again.
08-01-2011 10:21 AM
Manju-
All is well! I was able to XMODEM the image file and modify the boot parameters so that both problematic switches load the image from flash. Thanks for all your help.
08-01-2011 10:24 AM
Thanks Sean, np
Please mark this topic as answered......and give me small ratings if u like .....i am new-bie infact
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