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MLPPP over serial (X21)

MLPPP over serial (X21)

MLPPP over serial (X21)


I'm trying to set this up with
- a cisco 3725 with a WIC2A/S module... (2 serial ports with smart serial connectors)
- on the other side an industrial board that extracts data from 2 E1 links and makes it available at 2 X21 outputs, synchronized, 64kbps

X21: the Cisco is DCE, the industrial board is DTE.

Is this even possible, did any of you do something like this?
Current config:
Mlppp bundle with 2 links, one on serial 1/0 the other one on serial 1/1
ppp encapsulation set for both serial interfaces
clock rate 64000 for both serial interfaces
no fragmentation set up for the mlppp

I'm seeing line up, protocol down for both serial interfaces. There seem to be no input packets for each of the serial ports.

I can get back with more detailed information if it's useful  for a diagnose..


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