Supervisor Engine 720 not working

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Mar 2nd, 2009
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I am using two supervisor engine in 7613 router but onr in slot 7 and another in slot 8 but the problem is one supervisor engine is not working , it is showing orange LED and when i am applying "sh module" it showing 0000 value in MAC and unknown in fw,sw and status coloumn .can any one have an idea to recover the supervisor engine.

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adamclarkuk_2 Mon, 03/02/2009 - 01:32
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Console directly onto the secondary SUP and see what state it is in, this will at least give you a clue as to what the next steps should be and if unclear, at least you can let us know so we can advise.

adamclarkuk_2 Mon, 03/02/2009 - 01:54
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I would check that it has a valid IOS to boot from in flash, (make sure this is the same as your other SUP if you intend to us this as a backup SUP).

If it doesn't you will need to copy an image over and then reboot it, here is a URL with ROMMON commands :-


s-adhikary Mon, 03/02/2009 - 02:07
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Booth SUP-Engine is having same version of IOS

adamclarkuk_2 Mon, 03/02/2009 - 02:12
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When you are in rommon via console, and you type :-

boot :.bin

how far does it get and what error messages do you see?

adamclarkuk_2 Mon, 03/02/2009 - 02:47
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I think you will have to open a case with Cisco and supply this info to them as it looks like you SUP is broken but they will be able to tell you for sure. Hopefully it's not but it doesn't look good.

s-adhikary Mon, 03/02/2009 - 05:06
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Thanks Adam

I have reached to the solution , now it is working fine, i have used one disk memory to recover the SUP 720

Leo Laohoo Mon, 03/02/2009 - 14:10
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I agree with Adam. Your Sup most probably reloaded and failed to complete the reload due to %Software-forced reload. If you check the Sup bootdisk you'll probably find a number of crashinfo directories.

You need to find out why this is happening. There's almost 200+ identified crash-causing bugs for the SXF14 IOS.


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