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[Roll] reducing DAO size by compressing targets

"Rahul Arvind Jadhav (Rahul Arvind Jadhav, 2012 Labs)" <rahul.jadhav@huawei.com> Fri, 13 November 2015 05:51 UTC

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From: "Rahul Arvind Jadhav (Rahul Arvind Jadhav, 2012 Labs)" <rahul.jadhav@huawei.com>
To: Routing Over Low power and Lossy networks <roll@ietf.org>
Thread-Topic: reducing DAO size by compressing targets
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Date: Fri, 13 Nov 2015 05:51:11 +0000
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Subject: [Roll] reducing DAO size by compressing targets
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Hello All,

Currently "RPL Target" option that is carried by DAO keeps the target uncompressed even if the 6Lowpan context information might be available.
Can we have an option for "RPL Compressed Target" which uses Context ID to compress the ipv6 addr? Targets could be prefixes, partial prefixes or full ipv6 addresses which could be compressed. 
This will not only help in reducing control overhead but also improve DAO aggregation efficiency.

Is there any move already in this direction or an alternative soln? 6550 mentions "RPL Target Descriptor" but I feel the purpose of that descriptor is different.

Thanks,
Rahul

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