Which code use on a VSS system - Cisco future direction?

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Jul 30th, 2009
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Dear all,

we have maintained our production VSS system with 12.2.33 ... ipbasek9-vz codes, e.g.




Now I ve stumped over the fact that these codes are from the SW download section titled "Sup720 with MSFC3" - the VSS download section does NOT offer these codes - this code here in the VSS section comes closest to the one we use:


Surprisingly the last 3 ...ipservicesk9... code leves work on the VSS without noticeable problems...

However I cannot eFSU / issu upgrade from ...ipservicesk9... to ...advipservicesk9....

Now my question: This is a high availability system requiring ISSU upgrades. Might Cisco in the future give up supporting the ...ipservicesk9... code on the VSS forcing me to migrate to ...advipservices..., which requires a downtime?

Thanks and regards - Joachim

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iyde Thu, 07/30/2009 - 13:02
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Hi Joachim.

I just checked the download pages for sup720-10G and found this:


As I see it that's what you need.


jbrauer Wed, 08/05/2009 - 06:29
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Hi Ingolf,

sorry for the late reply. Thank you - yes I ve seen that image. However I have found that a family change from ipservicesk9... to ipservicesk9_wan... requires downtime (RPR upgrade). So my question is: Will Cisco in the future stop VSS support in the ipservicesk9_vz images (which are not found on the VSS sw download page).

Then I would have to go to one of the images of the VSS sw download page, needing a downtime during the upgrade.

iyde Thu, 08/06/2009 - 01:00
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Hi Joachim.

I see your point. Unfortunately I do not know the answer. Hopefully some of the Cisco guys in this forum can answer?

Rgds, Ingolf


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