RE: 2610 csu/dsu configuration

[Taylor, Don]

Title: RE: 2610 csu/dsu configuration

Yes, you're right; I wasn't specific enough, I suppose, in my explanation. I know the encapsulation is configured on the router under the interface and that it's separate from the CSU. Since the question indicated configuring the CSU for HDLC, I mentioned that she didn't need to change it. I should have specified that even if she had to, it would be separate from the CSU. My bad! =(  Sorry, if I've confused anyone.

 

- Don

-----Original Message-----
From: Chuck Larrieu [mailto:[EMAIL PROTECTED]]
Sent: Friday, December 01, 2000 4:02 PM
To: Taylor, Don; [EMAIL PROTECTED]
Subject: RE: 2610 csu/dsu configuration

Don, I believe that a CSU is a layer one device. I have never seen any option on any CSU I have ever worked with, internal or external, for line encapsulation. It is always AMI / B8ZS and SF / ESF choices.

 

on the router interface is where you configure HDLC or PPP. ( Or SDLC or SMDS or frame relay, for that matter. ) This is done with both internal and external CSU's.

 

notice that within the Cisco config, you even differentiate between the serial interface and the service module when issuing commands.

 

Chuck

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Taylor, Don
Sent: Friday, December 01, 2000 2:38 PM
To: 'Kelly Scroggins'; [EMAIL PROTECTED]
Subject: RE: 2610 csu/dsu configuration

There's not too much to it. HDLC is the default encapsulation, so you won't have to change that. And if the second router you're connecting too has a Cisco internal CSU, they'll have the same default. Basically you just need to put clocking on one of the routers and that should do it. The command is "clock rate ?" (you get to choose the speed - might as well go with the fastest, 4000000).

The commands for configuring your CSU, though, are (in interface config mode) "service-module t1 ?" (get the list). The ones I use most often are:

"service-module t1 timeslots 1-24 speed 64"; this sets the CSU up for 24 channels at 64K per channel (T1 speed)
"service-module t1 linecode b8zs"; B8ZS line coding, as opposed to AMI (your provider can tell you which one to use)
"service-module t1 framing esf"; ESF or SF are your framing choices

Hope that helps. Lemme know if you need something else.

- Don

-----Original Message-----
From: Kelly Scroggins [mailto:[EMAIL PROTECTED]]
Sent: Friday, December 01, 2000 12:35 PM
To: [EMAIL PROTECTED]
Subject: 2610 csu/dsu configuration

Can someone point me to some good documentation on
how to configure the csu/dsu module in a 2610 for
a plain ordinary hdlc t1 connection?

Thanks,
kelly

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