[c-nsp] Nexus 7k Upgrade Path

[Bradley Ordner]

Thanks, I’ll take this all onboard. The reason for the upgrade is we wanted to start using Loopbacks for OTV and finish a DR design that seems to have not been completed. 



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> On 23 Feb 2018, at 5:58 pm, Pete Templin <petelists at templin.org> wrote:
> 
> I would even go so far as to:
> 
> load system/kickstart files
> isolate the box (shutdown all ports)
> power-cycle the box, let it boot into the new code
> perform EPLD updates on all cards
> run the ISSU command to ensure all of the little microcode thingies (PSUs, fans, etc.) are covered
> unisolate the box
> 
>> On 2/22/18 11:44 PM, Pavel Skovajsa wrote:
>> Definitely not a stupid question. While the double ISSU would work we
>> generally would not do it for big jumps like that.
>> 
>> The problem is that the whole procedure tended to be buggy so we are too
>> afraid. Not speaking about crazy bugs we ran into half year later because
>> "triggered by previous issu upgrade" and we needed to reload anyway.
>> 
>> So - our recomendation for jumps like this - load the system a kickstart
>> files and reload the box? Ideally power cycle....there were fw bugs that
>> needed hard reboot to fix...
>> 
>> -pavel
>> 
>> 
>> 
>> Dňa 23. 2. 2018 7:34 používateľ "Justin M. Streiner" <
>> streiner at cluebyfour.org> napísal:
>> 
>> On Fri, 23 Feb 2018, Bradley Ordner wrote:
>> 
>> We have a Nexus 7K with two SUP2Es. We need to get to software version
>>> 8.1(2). It says that you can't double hop to a software version without an
>>> outage. Although I have found the following -
>>> ISSU from 7.2(0)D1(1) to 7.3(1)D1(1) then to 8.1(2).
>>> We currently are on 7.2(0)D1(1) according to the doco I should be able to
>>> upgrade as each version can ISSU to the next?
>>> Has anyone performed this before?
>>> I have posted this on Cisco Support Community, with no response so either
>>> it is a stupid question or no one has done it before.
>>> 
>> I haven't had to do a double-hop upgrade in a while, but my past experience
>> with ISSUs on the Nexus 7K has been mixed. Sometimes the 7K ecosystem
>> benefits from a full reboot.  Also, keep in mind that if any of the EPLDs
>> on your linecards need to be upgraded, the affected linecards will have to
>> take some amount of outage.  How much of an impact such an outage would
>> have depends entirely on your network design.
>> 
>> jms
>> 
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