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New Member

Adtran TSU 100-Cisco 2611XM

Here is the problem I am having. I have a 768k line coming into our bulding. The dmarc is connected to a Adtran TSU 100, which is connected to a Cisco 2501 on S0, (with several sub-interfaces off it). That works great. My problem is, once I swap the 2501 for a 2611XM with a 8-port serial card in it, I get an up/down on the serial port (S1/0). The configuration for S0 on the 2501 and S1/0 on the 2611 are the same (including the sub-interfaces), and the minute I go back to the 2501, it get up/up. Any ideas?

Thanks

3 REPLIES
Silver

Re: Adtran TSU 100-Cisco 2611XM

do a sh ver see if the serial card is a 8 port async if it is the async serial cards only support up to 128 K

New Member

Re: Adtran TSU 100-Cisco 2611XM

That may be it. a sho ver gives me this

8 Low-speed serial(sync/async) network interface(s)

Does that mean it only supports up to 128K?

Thanks

Silver

Re: Adtran TSU 100-Cisco 2611XM

yeah that is the problem

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