rohc team mailing list archive

Thread
Date

Re: [Question #241175]: about Profile0x0000

To: rohc@xxxxxxxxxxxxxxxxxxx
From: Didier Barvaux <question241175@xxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 23 Dec 2013 13:31:18 -0000
Reply-to: question241175@xxxxxxxxxxxxxxxxxxxxx
Sender: bounces@xxxxxxxxxxxxx

Question #241175 on rohc changed:
https://answers.launchpad.net/rohc/+question/241175

    Status: Open => Answered

Didier Barvaux proposed the following answer:
Hello,

You're right, the ROHC library does not conform to RFC 3095 for feedback. All 1.5.x and 1.6.x versions send ACK, NACK and SNACK and use FEEDBACK-2. They should:
 - send only ACK feedback (no NACK or SNACK).
 - use the FEEDBACK-1 format with 0 as profile-specific byte (no FEEDBACK-2 format).

RFC 3095, §5.10.4 entitled "Feedback" reads:
   The only kind of feedback in Profile 0x0000 is ACKs.  Profile 0x0000
   MUST NOT be rejected.  Profile 0x0000 SHOULD be associated with at
   most one CID.  ACKs use the FEEDBACK-1 format of section 5.2.  The
   value of the profile-specific octet in the FEEDBACK-1 ACK is 0
   (zero).

I opened a ticket in the bugtracker to fix this problem in next 1.7.0
release.

Didier

-- 
You received this question notification because you are a member of ROHC
Team, which is an answer contact for rohc.