Router Upgrade/Migration

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Apr 23rd, 2007
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I will be upgrading router hardware from a 2821 to a 2851 ISR. Will it be possible to just upload the existing config from the 2821 to the 2851 as-is? Will there be any additonal changes will I need to make to get going?

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Collin Clark Mon, 04/23/2007 - 10:03
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Sort of. The interface number scheme will be different. What interfaces (ie Serial) do you have in place today? Most likely the interfaces will be different, but the configuration under the interface will be the same or very close.

mparella Mon, 04/23/2007 - 10:36
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OK. I have 2 Gigabit Interfaces, a channelized T1/PRI (24 Serial Ports), 4 FXO, 4 FXS ports.

So if I upload the config, the parts that aren't applicable will just error out, but the rest should load no problem? I know you don't have all of the information, I am just trying to determine how difficult the transition will be. Any insight is appreciated.


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