[c-nsp] VSS - Horror stories, show-stoppers, other personal experience?

[Mike G]

Thanks for the great feedback Andrew!  Did you ever discover the cause of
the crash?  Also, was the 20 second outage due to the delay in the
active-hot sup taking over or was it something else?
On Jun 16, 2011 4:15 PM, "Andrew Miehs" <andrew at 2sheds.de> wrote:
> On Friday, June 17, 2011, Mike G <geezyx at gmail.com> wrote:
>
>> Has anyone had personal experience with a VSS deployment?  If so, do you
>> have any horror stories, caveats, and/or recommendations?  I'm also
>> interested in people's experience with IPv6 implementation in a VSS
>> environment.
>
> We have 5 VSS systems in production for about one and a half years ( I
> think sxi2a ) and so far have had only one crash - caused a 20 second
> outage. We are using them as building distribution switches ( combined
> pe, ce functionality ). Our cores switches run mpls and only the
> distribution switches are connectd to these so no need for hsrp.
>
> We have had great eperience with these systems - but initial config
> can be a pain - on mistake and you need to start from scratch.
> I am a little worried what will happen when we have a real problem on
> these boxes - whether we can debug quickly enough - as the 6500 take
> 20 minutes to boot....
>
> The new software should now support dual supervisor per chasis and
> soon with the sup 2t 4 chasis!
>
> We are only running IPv4 on our boxes - (entereprise environment).
>
> All that being said, if it was me - I would run hsrp for the mission
> critical stuff- coming from a routing background.
> My colleagues, coming from a switching background would run vss.
>
> Regards
>
> Andrew