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Re: [ipwave] QoS Data vs. Data for IPv6 over 802.11-OCB

Alexandre Petrescu <alexandre.petrescu@gmail.com> Fri, 11 October 2019 09:15 UTC

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From: Alexandre Petrescu <alexandre.petrescu@gmail.com>
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Subject: Re: [ipwave] QoS Data vs. Data for IPv6 over 802.11-OCB
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Dear Sandra,

Thank you very much for this reporting.

I skimmed quickly through the pcap, and I noticed indeed the presence of 
QoS Data headers in all IPv6 over OCB packets.  That is very good 
confirmation for the Internet Draft.

There are other things worth mentioning.

- the Priority is set to 'Best-Effort', whereas the Internet Draft 
IPv6-over-OCB says it SHOULD be 'Background'.  (in pcap, see header 
'IEEE 802.11 QoS Data', field 'Qos Control', field 'Priority:'; in I-D 
draft-ietf-ipwave-ipv6-over-80211ocb-52 see section 4.2 Frame Format).

- others.

Alex

Le 10/10/2019 à 16:41, Sandra Céspedes U. a écrit :
> Dear all,
> 
> Here at Niclabs, Universidad de Chile, we have been playing with some 
> commercial RSU and OBUs we use for research purposes. I asked my 
> students to capture traffic from basic IP exchanges to confirm the type 
> of encapsulation at the link layer. If you check the report below (I 
> have also included the pcap files), they confirm that all the IP packets 
> are encapsulated as QoS Data.
> 
> I'm providing the files to have more evidence of what the commercial 
> vendors are doing in their implementations.
> 
> Hope you find them useful.
> 
> Best,
> Sandra Céspedes
> 
> 
> 
> 
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