Upgrading a Supervisor 2T, 6807-XL

[vmiragli]

I have a customer with a VSS pair of 6807-XL, each chassis with dual supervisor 2T.

They want to upgrade from 15.2.1SY to 15.5.1SY.  This brings up multiple questions.

I don't know if they have a VS-SUP2T-10G or a VS-S2T-10G, because of bug CSCua96236.  I can likely find out from the account team, but is there another way to interrogate the device to find out?  Can a SUP2T even run in a 6800?

Also I'm reasonably sure that attempting ISSU is a bad idea, but can the upgrade be done in one step (after an FPLD upgrade)?

Thanks.

[Reza Sharifi · Accepted solution]

Hi,

Can a SUP2T even run in a 6800?

Yes, not an issue  at all. 

Also I'm reasonably sure that attempting ISSU is a bad idea, but can the upgrade be done in one step (after an FPLD upgrade)?

I would not use ISSU. You can do it in one step, but I would go the traditional way.

HTH

[Leo Laohoo · Accepted solution]

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@vmiragli wrote:
but is there another way to interrogate the device to find out?

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show module switch 1
show module switch 2

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@vmiragli wrote:
They want to upgrade from 15.2.1SY to 15.5.1SY.

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Read the Release Notes to 15.5(1)SY very, very, very carefully because the for the latest version, 15.5(1)SY5, may require a manual FPGA upgrade to the associated line cards.  
And here is the kicker:  The command option ("gold") to perform the FPGA upgrade to the line card is a "hidden" command.  This bit of information is not mentioned anywhere.
Another thing, the FPGA upgrade will take around 15 minutes -- and yes, this information is also not mentioned anywhere else.  

[vmiragli]

I did catch that in the release notes, thank you.

Great little pearl of wisdom on the 'gold' command.  The documentation effort on this product is awful.

Cheers.

[Abdulila Alhosaine]

You need at first to check the ROM software version . Based on the ROM software version you can take a decison if you can upgrage to the requierd IOS or not.

[vmiragli]

Ok good.  Is there a chart that says what ROM versions can be upgraded?   The release notes only mention that OBFL may not work for certain new cards until after the upgrade.

[Leo Laohoo · Accepted solution]

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@vmiragli wrote:
Is there a chart that says what ROM versions can be upgraded? 

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Sup2T only has one ROMMON release, 12.2(50r)SYS4.  Even if the publicly-released Release Notes doesn't specify, upgrading to this version will save valuable time in the future. 

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@vmiragli wrote:
The documentation effort on this product is awful.

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There, FTFY.  

[vmiragli]

Sound advice.  Thx.

Cheers.