On 27/01/2011, at 10:19 PM, Manu Chao wrote: > I need to upgrade (ISSU) multiples N7K Dual Supervisor running vPC domains > from NX-OS 4.2(6) to 5.1(1a).
ISSU from 4.2(6) to 5.1(1a) is non-disruptive. you should be able to upgrade with no disruption to service. having said that, always carefully read the release notes posted on cisco.com for a given release. it may be that an upgrade between two releases requires you to do something. e.g. see <http://www.cisco.com/en/US/docs/switches/datacenter/sw/5_x/nx-os/release/notes/51_nx-os_release_note.html#wp293013> you can certainly run vPC with one vPC peer switch being a different NX-OS release to the other vPC peer switch. On 27/01/2011, at 11:52 PM, Chris Evans wrote: > Cisco has advised us to not use issu when possible.. we have had a few weird > bugs from it after the fact.. we are running 4.2(4).. please send me details (off list) of who at "Cisco" that advised you of this. its not accurate. On 28/01/2011, at 12:09 AM, Ryan West wrote: > I'm sure the release notes say it, but the 4.x to 5.x major requires a full > reload. I spent a lot of time tracking down a BPDU rate limiting issue only > to find the customer had ISSU'd from 4 to 5 and did not reload. an upgrade from 4.2.x to 5.x does not require a reload. my guess is that the release-notes were not followed as it does talk about some very specific things in upgrade/downgrade considerations. cheers, lincoln. _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
