rohc

Use of Large CID and Small CID

Asked by Jyotimay Saini

I have a doubt that, What is the point of having two parameters for passing the MAX_CID value to the compressor, I mean that the range of SMALL_CID is (0-15) and the range of LARGE_CID is (0-16383). So the question is only one parameter can do the job, What's the point of having Two parameters. Or if I'm wrong, please tell why do we need two parameters(SMALL_CID & LARGE_CID).

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Didier Barvaux (didier-barvaux) said : 		#1

Hello,

Someone might want to use the "large CIDs" format with MAX_CID <= 15.

The "large CIDs" format might be required by a ROHC compressor for compatibility with a remote ROHC decompressor configured with large CIDs. That ROHC compressor might also be running on a host with very limited resources, so it might want to limit the number of compression contexts.

Regards,
Didier

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