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New Member

how to Configure E1 interface

We have purchased a router cisco 2821. I want to configure a E1 unchannelized (not PRI)interface for 2 MB of bandwidth. Please guide me from where i can get help URL to configure my E1 interface for 2 MB of bandwidth.


Re: how to Configure E1 interface

Just assign these commands on the interface:

(config-if)# bandwidth 2048

(config-if)# no shut

New Member

Re: how to Configure E1 interface

thanks bvsnarayana03 for quick reply. what about the other perameters of E1? if i keep it unassigned will it work? kindly tell me the URL?

Re: how to Configure E1 interface

Hi Muhammad.

I'm not 100% sure that you can use full 2M because you only use 30 channels for doing that.

Are you using e1 for data? please try this:

card type e1 x/y


controller e1 x/y

channel-group 0 timeslots 1-31


interface serial x/y:0

encapsulation ??? (you want)

ip address ???(you want)


Note:Please let us know what type of card are you using?

If you really want to use 2M full I think you need E1 unframed G.703 to do.


Hopes that help


Hall of Fame Super Gold

Re: how to Configure E1 interface

As mentioned many many times, the bandwidth parameter is purely informative and does not change the speed of an interface or how it works.