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Attention: The Community will be in read-only mode on 12/14/2017 from 12:00 am pacific to 11:30 am.

During this time you will only be able to see content. Other interactions such as posting, replying to questions, or marking content as helpful will be disabled for few hours.

We apologize for the inconvenience while we perform important updates to the Community.

New Member

Re: Question on NAC 3350 ...

Hi,

I have a few questions with regards to the Cisco NAC. The questions are :-

1) If say that I have two CAMS that are in HA mode and if I need to upgrade them to

    a newer code, would it be possible to upgrade one code to a newer version, 4.5 and leave

    the the other CAM at its existing version, ie 4.1 ?

2) What is the permissible time difference/ permissible skewed time between the CAM and the switch before the CAM ceases communicating

     to the switch ?

Pls advice,

Cheers,

-SN-

2 REPLIES
New Member

Re: Question on NAC 3350 ...

1) Only if you leave one CAM shut off (ie, you're upgrading a failover pair and want to leave half of the pair on the original version and shut down until you fully test the new software version).  CAMs that are in an HA pair and on different versions will still attempt to sync the database between them, and this will most likely cause unrecoverable database corruption.

2) Is this for an OOB controlled switch?  If so, it's controlled by the SNMP timers on the CAM and switch.

New Member

Re: Question on NAC 3350 ...

Hi,

Yes this is for an OOB controlled switch.

Thank you,

Cheers,

-SN-

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