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Re: [Question #234822]: How to run and execute the rohc sources

To: rohc@xxxxxxxxxxxxxxxxxxx
From: Didier Barvaux <question234822@xxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 12 Sep 2013 13:11:25 -0000
Reply-to: question234822@xxxxxxxxxxxxxxxxxxxxx
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Question #234822 on rohc changed:
https://answers.launchpad.net/rohc/+question/234822

    Status: Open => Answered

Didier Barvaux proposed the following answer:
No, you didn't understand at all. There are 2 couples of ROHC
compressor/decompressor. Every IP packet is compressed then decompressed
with the first couple, then it is compressed then decompressed with the
second couple. That emulates a both-way traffic, and it checks the
behaviour of the bidirectionnal mode of the ROHC library.

If there are N packets in the source.pcap file, there are 2 * N ROHC
packets in rohc*.pcap. Even ROHC packets were generated by the first
compressor. Odd ROHC packets were generated by the 2nd compressor. Those
2 ROHC packets are equal, except for feedback data that one compressor
may add while the other don't.

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