IOS features

Unanswered Question
Mar 3rd, 2008

When I issued command onto 6509:

#show version | include IOS.

I got this below:

<<<IOS (tm) s222_rp Software

(s222_rp-ADVENTERPRISEK9_WAN-M), Version 12.2(18)SXF8, RELEASE SOFTWARE (fc2)>>>

And on another 6509 switch. I got this:

#show version | include IOS.

<<<IOS (tm) s222_rp Software (s222_rp-ADVENTERPRISEK9_WAN-M), Version 12.2(18)SXF8, RELEASE SOFTWARE (fc1)>>>

What is (fc1) and (fc2) and what is different features between of them?

Your help is appreciated. Thanks

I have this problem too.
0 votes
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
andrew.burns Tue, 03/04/2008 - 03:59


To quote from "Cisco IOS Releases - The Complete Reference":

'fc2' is an internal rebuild of the 'fc1' build. 'fc2' is usually created to fix a specific defect found in the 'fc1' build. An 'fc2' build cannot be created if the first build was already released to a public directory.

I'm not exactly sure what that means in practical terms but it sounds like fc2 is a last-minute bugfix.

The actual bug (or "caveat" in Cisco-speak) should be detailed in the release notes, but it won't say which one caused the rebuild, although in all likelihood it's the one at the bottom of the table.

HTH - plz rate useful posts (not just mine!)



This Discussion