On n5k — when designed appropriately — I’ve not had an issue with ISSU. The process is actually pretty stable. This means adhering to design guides for things like bridge-assurance, STP, etc.
N7K was a rockier experience (when I was in the field). 5.0 -> 5.1 -> 5.2 transitions were rough — due to scheduler rebuilds with each release. Many things broke. I can’t think of any of my customers today running vPC on n7k — as most of them have moved to either ACI or VXLAN-EVPN — so I don’t have any anecdotes from the field. q. — Quinn Snyder | [email protected] -= Sent via iPad. Please excuse grammar, spelling, and brevity =- > On Nov 1, 2019, at 17:39, Bradley Ordner <[email protected]> wrote: > > I have done this on the 7K and I don’t trust it anymore. I had OSPF > adjacencies go down when the supervisor failed over. > > We plan for outage now, we only have one per DC :( and do it manually. > > Even running the ISSU commands to see If the device was ready failed > sometimes. > > What I would suggest, which we tried as well to no effect is to reboot the > supervisors or what ever the 5k brains are called one by one before trying > ISSU. That way it’s fresh. > > Brad Ordner > > > > Sent from my iPhone > >> On 2 Nov 2019, at 9:19 am, harbor235 <[email protected]> wrote: >> >> Hi everyone, >> >> What are your experiences with Nexus5K ISSU and VPCs. Do you see service >> interruptions? ISSU is never quite ISSU. During role changes and/or VPCs >> reforming I see short duration losses. Is this standard? >> >> >> Mike >> _______________________________________________ >> cisco-nsp mailing list [email protected] >> https://puck.nether.net/mailman/listinfo/cisco-nsp >> archive at http://puck.nether.net/pipermail/cisco-nsp/ > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
