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K12 protocols

0

Hello.

I wonder what protocol should be used in case of ISDN PRI in tectronix files .rf5 ?

asked 16 Feb '12, 02:48

Pnk's gravatar image

Pnk
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2 Answers:

1

I would guess at q931 or LAPD. browsing the .r5 file might give a hint.

answered 17 Feb '12, 11:28

Anders's gravatar image

Anders ♦
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edited 27 Feb '12, 13:39

Guy%20Harris's gravatar image

Guy Harris ♦♦
17.4k335196

Not q931 nor LAPD gives result. Can't upload file, it is too big. Seems that the analyser is K15 and it have differencies with coding LAPD (as it seen in trace,parsed with analyser). Q931 also does'n bring anything.

(27 Feb '12, 01:17) Pnk

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Some manipulating with protocols braught result: like half of packets in Q931 and half in LAPD. Don't get how it worked :) Anyway thx for help. Result protocols in frame k12:lapd:q931:q932:q932.ros:data Wireshark 1.6.5

answered 27 Feb '12, 01:28

Pnk's gravatar image

Pnk
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accept rate: 0%

edited 27 Feb '12, 01:33

Q.931 is a protocol that runs over LAPD, so perhaps "half of packets in Q931 and half in LAPD" means all the packets are LAPD and half of them transport Q.931 (rather than being, say, S-frames that just transmit flow control and error information at the LAPD layer).

(27 Feb '12, 13:38) Guy Harris ♦♦