Wireshark-bugs: [Wireshark-bugs] [Bug 9427] Dissector for T1-data-over-TCP protocol from Guisys
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Thu, 14 Nov 2013 00:47:07 +0000

Comment # 10 on bug 9427 from 
(In reply to comment #9)
> Guy is now stuck in a good place, same place I am, I think.  See the
> attached comment from the bug please, I believe questioning the map of
> router layer 2 frame with payload is delivered to the T1, and of course how
> to extract it.

Actually, I'm questioning how the 24 channels of your T1/DS1 are encapsulated
into an Ethernet frame.

Now that I look at it, I'll also ask what "The Packet contains a total of
40-T1's" means.  Does it mean "40 T1 frames of 24 bits each"?  It sounds from

    Src_router--T3--ch_16_T1>

as if "ch_16_T1" mean mean T3 channel 16 is carrying a single T1; is that
correct?

Once I know that, the next question is "so is this T1 carrying nothing but one
Frame Relay line", so that it's not multiplexing multiple bitstreams?  And, if
so, does that mean the first bit of the Frame Relay bit stream is in channel 0
of a T1 frame, the second bit is in channel 1 of that frame, ... the 24th bit
is in channel 24 of that T1 frame, the 25th bit is in channel 0 of the next T1
frame, etc.?

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