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Date: Sat, 30 Sep 2006 19:34:33 +0200 From: Krzysztof Halasa <khc@...waw.pl> To: Ben Greear <greearb@...delatech.com> Cc: linux-kernel <linux-kernel@...r.kernel.org> Subject: Re: Question on HDLC and raw access to T1/E1 serial streams. Ben Greear <greearb@...delatech.com> 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 > testing. > > 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")? -- Krzysztof Halasa - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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