Router 7600 requires a down time to upgrade or down grade ios ?

Unanswered Question
Jan 24th, 2010
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In service software upgrade must be supported and it should be possible to upgarade the router 7600  from one OS version to another without a downtime.


Sandeep Chugh

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Overall Rating: 5 (1 ratings)
tarnhundal Mon, 01/25/2010 - 04:32
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Hi Sandeep,

                                You can only copy the IOS image but this will not effect untill you save this image and reload the router.

Thanx and regards,


tarnhundal Tue, 01/26/2010 - 05:43
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HI Yasir,

                                 Is it possible to do ISSU on 7600 ?

thanx and regards,


tarnhundal Tue, 01/26/2010 - 05:49
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Hi ,

               How it wll be done on 7613 , means first I have to copy IOS on first SUP then on second . plz let me know ?

thanx and regards,


Yasir Ashfaque Tue, 01/26/2010 - 09:48
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Well it supports, please go through the link i have already given you, you will have to copy both new and old IOS on the flash of both active, backup supervisors, and then will have to follow the exact procecure shown in the guides. it works and you face minimum of 10 Seconds downtime.

Leo Laohoo Tue, 01/26/2010 - 13:05
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