Hello, I actually tried jumping 5 releases on an M40e in our lab. The upgrade worked but when I began running my test plan, I had a few items that wouldn't work. The fix was to downgrade to the previous release and then upgrade with an interim release to avoid upgrading more than 3 releases at a time. It would take me a while to find the exact releases and problems. It was almost 2 years ago.
It may have been a one time thing but based on my experience, I never upgrade more than 3 releases at a time. If you are missing an interim release that is no longer on the Juniper web site, TAC can get you a copy. Serge ----- Original Message ---- From: Chuck Anderson <c...@wpi.edu> To: juniper-nsp@puck.nether.net Sent: Mon, January 11, 2010 3:59:48 PM Subject: [j-nsp] upgrading M120 directly from 8.5 to 9.3 Juniper recommends not upgrading more than 3 releases, but 8.5 to 9.3 would be a 4-release upgrade (9.0 - 9.1 - 9.2 - 9.3). Has anyone done this with success? It seems strange to me that Juniper wouldn't test and support an upgrade from one E-EOL release to another without having to jump through a non-E-EOL release, and in fact a release that has actually reached EOL. 8.5 reaches EOL on 2011-05-15 9.2 has reached EOL as of 2009-11-15 How is one supposed to upgrade in a supported manner once 9.2 is removed from the web site? Luckily, it is still there now. But if I have a problem with 9.2 during this intermediate upgrade step, Juniper won't support it because it is EOL? Seems like someone didn't think this through very well. I'd like to avoid the pain and just go directly from 8.5 to 9.3. What are your experiences? Thanks. _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp __________________________________________________________________ Looking for the perfect gift? Give the gift of Flickr! http://www.flickr.com/gift/ _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp