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upgradation of ios

I am having router 2800 and switch 3560

can i upgrade to next higher version, the questions are:

1- where i should get new version of ios .

2- Is it a chargable or can be downloaded from net free of cost.

3- when we upgrade with next version of ios , the previous configuration will be erased and again i have to configure fresh or nothing will happen to my running config.

please suggest...

1 REPLY
Hall of Fame Super Gold

Re: upgradation of ios

You need a CCO account and depending on your service contract if you can download the IOS.  If you are unsure, contact the authorized Cisco reseller and they will either give you the IOS themselves or provide you the service contract to add to your CCO account.

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