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Community Member

Fractional T1 on Cisco 25xx ?

I am setting up a fractional T1 (512K) on a Cisco 2516 used as CPE. The "service-module t1 timeslots 1-8" option is not available there. Besides setting up the number of channels on the external DSU/CSU, is anything required on the router to specify a fractional T1 ?

Thanks.

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Community Member

Re: Fractional T1 on Cisco 25xx ?

The SERVICE-MODULE command is only for integrated/WIC CSU/DSUs. Since the 2500 series only has serial interfaces the "module" isn't present. All of your setup will be on the external CSU.

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Community Member

Re: Fractional T1 on Cisco 25xx ?

Nothing special on the router. Just make sure that you set a bandwidth statement so that your routing protocols (if applicable), and your show interface counters will function properly.

Community Member

Re: Fractional T1 on Cisco 25xx ?

Nothing special on the router. Just make sure that you set a bandwidth statement so that your routing protocols (if applicable), and your show interface counters will function properly.

Community Member

Re: Fractional T1 on Cisco 25xx ?

The SERVICE-MODULE command is only for integrated/WIC CSU/DSUs. Since the 2500 series only has serial interfaces the "module" isn't present. All of your setup will be on the external CSU.

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