change 6509 supervisors

[opnineopnine]

Hi all,

I have to change the 2 supervisors in a 6509, this new SUP come with a new firmware, is there any procedure I will have to follow and any later verification I will have to do after the change?

thanks all.

[Rajeev Sharma]

Hey,

Just plug it in and you should be good.

HTH.

Regards,

RS.

[opnineopnine]

Hello Rajeev,

Thanks for that, but I would like to have some troubleshooting tips.

Thanks

[Reza Sharifi]

Hi,

If you are trying to replace the 2nd sup and the sups are running in SSO mode (redundant), than you want to make sure the sesond sup has the same IOS as the primary before installing it.  If not SSO will not work.  Also, once both sups are on line, issue "sh redun" command, this will show you if the redunancady is working.  The other good command to verify is "show module"

HTH

[opnineopnine]

Hello Reza,

I'm changing both the supervisors, they are the same the only difference is that the version is newer.

Thanks

[Reza Sharifi · Accepted solution]

Hi,

Ok if you are changing both then as long as both have the same exact IOS, you should be fine. The show commands I provided above will help you in knowing if the sups are functioning properly.  Don't forget to configure them in SSO (redundant) mode.  Once it is configured, the primary sup should show as active and the backup sup should show as hot stand-by.

sh redundancy

HTH

[opnineopnine]

Reza,

This will be the configuration?

Router(config)# redundancy

Router(config-red)# mode sso

Router(config-red)# end

Router# show redundancy states

[Reza Sharifi]

Hi,

Yes, your config looks correct.

HTH

[Suresh Vinayagam Subramanian]

Hi,

yes, Also you can verify be " show redundancy status " and it should in SSO mode like below .

C6K1#sh redundancy 
Redundant System Information :
------------------------------
       Available system uptime = 9 weeks, 5 days, 13 hours, 59 minutes
Switchovers system experienced = 0
              Standby failures = 0
        Last switchover reason = none

                 Hardware Mode = Simplex
    Configured Redundancy Mode = sso
     Operating Redundancy Mode = sso
             

If you see other mode (RPR) than there some difference between active and standby sup.

It can be due to IOS mismatch or due to some configuration which causing sync issue. 

Anyway " sh redundancy status " will give reason why it was not sync. If sync failure happened due to some configuration then you can use below command to identify the difference.

show redundancy config-sync failures mcl 

HTH

Regards,

VS.Suresh.

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