Thank you Peter, now it's clear: we shouldn't have done it ... :) But we need that release to support some non-juniper optics. As soon as we have new hardware we will test a step-by-step upgrade.
Best Regards Simone On Wed, Sep 23, 2015 at 11:11 PM, Peter Tavenier <petertaven...@gmail.com> wrote: > > On 23 Sep 2015, at 14:48, Simone Spinelli <simone.spine...@gmail.com> > wrote: > > > > Hi all, > > > > few days ago we upgraded a 6 members VC of ex4550 from 12.3R6 to 15R1.8. > > using nssu precedure. > > We have linjux boxes connected with LACP on different member. > > We checked all the requirement listed on: > > > http://www.juniper.net/techpubs/en_US/junos14.2/topics/task/installation/ex-series-software-upgrading-nssu-fixed-virtual-chassis-cli.html > > > > After we started the upgrade , all the LACP links went down (one by one > > depending on the upgraded member), even if linecards were up and running > > and connected to the VC. > > In the end, everything went back to normal when the master RE came up. > > Actually a member was still stuck with all the LACP ports in "detached" > > state: after a manual reboot, it went ok. > > > > Did anybody have a similar issue? > > Any suggestion for investigation? > > Hi Simone, > > If you see > http://www.juniper.net/techpubs/en_US/release-independent/junos/topics/reference/general/ex-series-nssu-support-tables.html#ex4200-4500-vc > and then the PR1030508 you see there were some issue’s with this 12.3R6 > release, so not sure if you hit that. > > However even if you don’t use NSSU I think this upgrade path (did you > upgrade directly to 15R1.8?) is not supported[1] > > "Support for upgrades and downgrades that span more than three Junos OS > releases at a time is not provided, except for releases that are designated > as Extended End-of-Life (EEOL) releases.” > and > "You can upgrade or downgrade to the EEOL release that occurs directly > before or after the currently installed EEOL release, or to two EEOL > releases earlier or later.” > > - JunOS 12.3 is an Extended End of Life (EEOL) Release[2] > - JunOS 13.3 and 14.1 are also EEOL. > So you could upgrade form 12.3 to 14.1 (I’m not sure if ISSU is supported > in this path as well). > > [1] > http://www.juniper.net/techpubs/en_US/junos15.1/information-products/topic-collections/release-notes/15.1/topic-83365.html#rn-junos-ex-migration-upgrade-downgrade > [2] http://www.juniper.net/support/eol/junos.html > > -- > Peter > _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp