Re: [icnrg] draft-irtf-icnrg-icnlowpan-08.txt
Carsten Bormann <cabo@tzi.org> Wed, 12 August 2020 18:54 UTC
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From: Carsten Bormann <cabo@tzi.org>
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Date: Wed, 12 Aug 2020 20:54:01 +0200
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Subject: Re: [icnrg] draft-irtf-icnrg-icnlowpan-08.txt
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Hi, I am currently looking at draft-irtf-icnrg-icnlowpan-08. I have a number of editorial comments I will send you when I have completed my review, but there also is a technical comment that I think needs to be fixed before this is going forward. Section 12 has this table of allocations desired: +=============+======+===========================================+ | Bit Pattern | Page | Header Type | +=============+======+===========================================+ | 00 0xxxxx | TBD1 | Uncompressed NDN Interest messages | +-------------+------+-------------------------------------------+ | 00 1xxxxx | TBD1 | Uncompressed NDN Data messages | +-------------+------+-------------------------------------------+ | 01 0xxxxx | TBD1 | Compressed NDN Interest messages | +-------------+------+-------------------------------------------+ | 01 1xxxxx | TBD1 | Compressed NDN Data messages | +-------------+------+-------------------------------------------+ | 10 0xxxxx | TBD1 | Uncompressed CCNx Interest messages | +-------------+------+-------------------------------------------+ | 10 1xxxxx | TBD1 | Uncompressed CCNx Content Object messages | +-------------+------+-------------------------------------------+ | 11 0xxxxx | TBD1 | Compressed CCNx Interest messages | +-------------+------+-------------------------------------------+ | 11 1xxxxx | TBD1 | Compressed CCNx Content Object messages | +-------------+------+-------------------------------------------+ Table 1: Dispatch types for NDN and CCNx with page TBD1. Compare the registry at https://www.iana.org/assignments/_6lowpan-parameters/_6lowpan-parameters.txt : 11 11xxxx 0-15 Page switch [RFC8025] So none of the free pages (TBD1 values) can fulfill this request. It seems to me that this can easily be repaired by using two half pages instead of a full page, e.g. by indicating NDN vs. CCNx in the page number instead of the P bit (the most significant bit, which is now the P bit, would always be 0). What have you been using in the existing experiments? Grüße, Carsten
- [icnrg] I-D Action: draft-irtf-icnrg-icnlowpan-08… internet-drafts
- Re: [icnrg] I-D Action: draft-irtf-icnrg-icnlowpa… Cenk Gündoğan
- Re: [icnrg] I-D Action: draft-irtf-icnrg-icnlowpa… Dirk Kutscher
- Re: [icnrg] draft-irtf-icnrg-icnlowpan-08.txt Carsten Bormann
- Re: [icnrg] draft-irtf-icnrg-icnlowpan-08.txt Carsten Bormann
- Re: [icnrg] draft-irtf-icnrg-icnlowpan-08.txt Colin Perkins
- Re: [icnrg] draft-irtf-icnrg-icnlowpan-08.txt Carsten Bormann
- Re: [icnrg] draft-irtf-icnrg-icnlowpan-08.txt Martine Sophie Lenders
- Re: [icnrg] draft-irtf-icnrg-icnlowpan-08.txt Martine Sophie Lenders
- Re: [icnrg] draft-irtf-icnrg-icnlowpan-08.txt Cenk Gündoğan
- Re: [icnrg] draft-irtf-icnrg-icnlowpan-08.txt Colin Perkins