Re: Question on HDLC and raw access to T1/E1 serial streams.
From: Krzysztof Halasa
Date: Sat Sep 30 2006 - 13:34:54 EST
Ben Greear <greearb@xxxxxxxxxxxxxxx> writes:
> I am looking for a way to bridge a T1/E1 network by reading a raw
> bitstream from one T1 interface and writing it out to the other. The
> application is adding delay and/or bit corruptions for impairment
> I have been using Sangoma's drivers and NICs, but I'm having no luck
> getting their latest stuff to work so I was hoping to use in-kernel
> drivers (even if that means writing or hiring someone to write new ones.)
> Is there currently a way to read/write the raw bitstream for a full T1
> or E1 or a subset of channels?
Well, my generic HDLC works with HDLC framing only, T1/E1 is
a layer lower than that... I think Cyclades have (had?) a version
of PC300 card with T1/E1 interface. It at least doesn't require
any "binary blobs", though I think the driver would need some work.
Which line interface do you need? G.703?
Do you need to bridge multiple streams (not slots) over one
interface (internal (de)multiplexer - I mean "more than one
subset of channels")?
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/