Juniper to Cisco : Serial back to back?

Hi Everyone,
Been banging my head against this. The Googs isnt helping. Is it possible to to connect a Juniper (J2300) to a Cisco 2600 back to back via serial? I have both DCE-DTE and DCE-DCE cables. Neither result in Physical Link UP.

Please advise!

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joshuamurphy75

Have you changed the Cisco to PPP? Cisco defaults to HDLC and Juniper defaults to PPP.

Node Man

Hi! Yup I have tried changing to PPP. I don think that is the issue. I believe encapsulation is a layer 2 protocol and the issue is stuck at layer 1. Both the Cisco and Juniper recognize that a serial cable is plugged into them, and they adjust their serial settings when they are changed from DCE to DTE ends. But the Juniper never seems to receive a signal from the Cisco.

So that seems to be the problem, the Juniper knows its DTE, but doesnt seem to receive any timing clock or anything.

Advise?

cisco4life

How is the clocking configured? Can you post the serial configs for Juniper and Cisco?

NikeBoy

Hi! What kind of V.35 cables do you use?
I guess Cisco cable for C-side and Juniper cable for J-side?
As I remember we had some problems when we use Cisco cable for J-side - it didn't worked...

Also you must configure clock on DCE side!