01-10-2009 09:13 AM - edited 03-06-2019 03:21 AM
At my company, we introduced iSCSI to our network, and find it at issue when our switch reboots, it takes to long... I did some research on SSO, It seems to me to be a much better way to go.. rather than RPR mode.. Can you view my current supervisor config and give input?.. thank you
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01-10-2009 09:36 AM
Rob,
I don't see any configuration of the switch. Here is an example to configure SSO:
redundancy
mode sso
main-cpu
auto-sync standard
Also I noticed that you are running different IOS version on your switch. One of the requirements for SSO is that both supervisors must run the same IOS version, and feature set. Here is a link that will help you understand this further.
http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/31sg/configuration/guide/NSFwSSO.html
HTH,
Mark
01-10-2009 09:36 AM
Rob,
I don't see any configuration of the switch. Here is an example to configure SSO:
redundancy
mode sso
main-cpu
auto-sync standard
Also I noticed that you are running different IOS version on your switch. One of the requirements for SSO is that both supervisors must run the same IOS version, and feature set. Here is a link that will help you understand this further.
http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/31sg/configuration/guide/NSFwSSO.html
HTH,
Mark
01-10-2009 10:00 AM
01-10-2009 10:15 AM
I did see your last attachment. I thought there was a config that you had posted. You do have a version mismatch which will need to be corrected before SSO will work.
I would recommend copying the IOS from one supervisor to the other (probably the more current version would be better) and reload the supervisor with the correct image.
If you need more help let me know.
Mark
01-10-2009 10:27 AM
how do you copy from one supv to another?...
:)
thanks
01-10-2009 10:33 AM
You will need to either telnet or console into the active supervisor:
determine which supervisor has/needs which image
copy bootflash:iosname.bin slavebootflash:
or
copy slavebootflash:iosname.bin bootflash:
The last link I posted has more detail about that. If you are unable to do this please post the following output
dir /all
This will show what files are which supervisor and I could give you the exact syntax with this info if needed.
Mark
01-10-2009 11:38 AM
mark, i cant figure out how to telnet into the active supervisor.... when i do an attach module ? i get (3-10)... it wont give me access to the modules 1 & 2 once im in, is this where i do a dir /all ?....
rob
01-10-2009 11:47 AM
Does this switch have a management IP address? Is this switch setup for remote management? If no to either of these you will want to use a console cable and console directly into the active supervisor. From there in privileged exec mode then you would type dir /all.
Note: From the previously posted output the supervisor in slot 1 is the active supervisor.
Mark
01-10-2009 12:18 PM
yes, i am telnetted into the switch, also, i setup a have another computer console into the active supv too.. with same results, not being able to access the supervisors...
01-10-2009 12:01 PM
(from running-config)...
boot-start-marker
boot system tftp cat4000-i9s-mz.122-25.ewa4.bin 255.255.255.255
boot bootldr bootflash:cat4000-i9s-mz.122-25.ewa4.bin
boot-end-marker
!
above is the ios i want to copy to the standby supervisor (which is the older version ios
do i have to boot in rommon mode to do this?....
01-10-2009 12:32 PM
No you don't need to be in rommon. Is the tftp server currently active? I would just TFTP the IOS from the TFTP server directly to the standby SUP
switch#copy tftp slavebootflash:
Address or name of remote host []? 1.2.3.4 (your TFTP server IP address)
Source filename []? cat4000-i9s-mz.122-25.ewa4.bin
Destination filename [cat4000-i9s-mz.122-25.ewa4.bin]?
Accessing tftp://1.2.3.4/cat4000-i9s-mz.122-25.ewa4.bin...
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
then modify your bootstring to:
switch#configure terminal
switch(config)#boot system flash bootflash:cat4000-i9s-mz.122-25.ewa4.bin
boot system flash bootflash:cat4000-i9s-mz.122-25.ewa4.bin
type exit
save the config:
switch#copy run start
reload the standby supervisor:
switch#redundancy reload peer
Then the standby SUP should come up with the new image.
you can verify that it has by consoling into the switch and issue the "show version" command or "show redundancy" command.
Mark
01-10-2009 12:50 PM
01-10-2009 12:56 PM
Did you copy from my previous post from TFTP? If not just type
copy bootflash:cat4000-i9s-mz.122-25.ewa4.bin slavebootflash:
That should be all you need.
you can verify that it has successfully copied by issuing the "show slavebootflash:" command.
01-11-2009 10:34 AM
Mark, im at work, and run the command you gave me, and is responds with "There is a file already existing with this name" and prompts me to overwrite or not.... what should i do?......
thank you
rob davis
01-11-2009 10:44 AM
Mark, being that the file is already in slavebootflash, can in follow the instructions you posted earlier "changing the bootstring",
thanks
rob
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