[c-nsp] Nexus 5k ISSU

[Bradley Ordner]

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 <harbor235 at gmail.com> 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
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