The upgrade of FWSMs pair of failover

Due to the bug, we are modernizing our pair of double chassis FWSM tipping from 1.1.2 to 1.1.4. I want to minimize service disruptions, can someone point me to some documents or to explain briefly the best process. 2.2 documentation it appears I can pass between the maintenance release while retaining the functionality of failover, this was the case with 1.1? Or is the "replacement of failover unit after hardware failure' the best method for a unit of failover eventhough not missed?

The doc in FWSM 2.2 for the replacement of the faulty module can serve as a guideline.

http://www.Cisco.com/en/us/partner/products/HW/modules/ps2706/products_tech_note09186a0080531753.shtml

But as stated in the FAQ FWSM - failover for ver 1.1 (http://www.cisco.com/en/US/partner/products/hw/modules/ps2706/products_qanda_item0900aecd800fa578.shtml), this may be your case. FWSM ver2.2 running offer more flexibility and minimize downtime with the features of "upgrade online. This feature is not available in code 1.1.x.

Therefore, when you perform the upgrade. restart both FWSM modules are inevitable, but at least with a minimum off time (time required for the module get online and work).

What you can do is to 'break' the FWSM before the failover process and perform the upgrade. Repeat the same process for the two blades. See the attachment for details instruction.

HTH

AK

Tags: Cisco Security

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