Upgrading IOS without down time

[burleyman]

I have a Catalyst 6513 switch with two WS-sup720. I want to update the IOS to the lastest, I am running 12.2(17d) SXB9 release software (fc2). I am looking for a way to do this and not bring down the switch. Can someone direct me to some info on how to do this....if it is possible.

Thanks,

Mike

[Bobby Thekkekandam]

Hi Mike,

I know this is not the answer you were hoping for, but you will have to ultimately reload the switch to run the new IOS.

HTH,

Bobby

[burleyman]

Thanks for your reply. I am going to try the FSU method.

Mike

[dan.gregoire · Accepted solution]

Mike,

One other possible option that you could keep in mind is called the Fast Software Upgrade (FSU)method. This method still has some down (1-2 minutes for us)time but is much less than reloading the switch (7-8 minutes for us). Here is a link that explains the process.

http://www.cisco.com/en/US/products/hw/switches/ps708/products_configuration_guide_chapter09186a00800da705.html#wp1089399

I hope this helps

[burleyman]

Thanks. That is what I was looking for.

Mike

[stefano.carboni]

Hi Mike

I have the same hw/sw configuration you are using. Could you tell me if you were able to use successfully the FSU procedure (I was not..) ?

Thanks in advance.