call 9/1/2015 notes
Folks,
Start: 9/1/2015 6AM PDT
End: 9/1/2015 ~6:45AM PDT
Present:
Jouni Korhonen
Bomin Li
Xhafer Krasnigi
Steinar Björnstad
Gareth Edwards
Raz Gabe
Peter Turnbull
Binrong Chen
Richard Tse
Sriram Devi
Richard Maiden
Duncan Cockburn
Actual Agenda:
The agenda was posted on the reflector: http://www.ieee1904.org/3/email/msg00237.html
Note that when you download the PPTX the filename needs to be renamed to end with ".pptx"
instead of ".bin". Some interesting email reflector stuff ongoing here..
Discussion:
* Quick discussion about the virtual meeting experience. It is OK every now and then but
does not work out as a replacement for f2f meetings. The definitive good side of
virtual meeting is that there is no travel.
* Quick reminder about open APs:
1) jouni: initiate discussion on the reflector concerning both RoE and Mapper(s) configuration
parameters, and the configuration information structure -> first mail sent..
2) Yasser/Richard: Initiate dicussion on start of frame and handling of different cases for
e.g. UTRA, GSM, ..
3) Kevin: write a proposal how to handle structure agnostic mode encapsulation.
4) Shijia Ma: write a proposal how to handle silent suppression & write a proposal on handling
sequence numbers and timestamps. How to detect packet loss in a case of timestamps.
5) Jinri: Manageability of RoE endpoints, alarms, etc.
* Baselines and way forward.. quick look into approved motions. They will be added to the list of
baselines and some of them were said just as "starting point".
* Extended header and C-flag:
- Jouni referred to discussion during August meeting and the point made by Glen that C-flag could
be part of pkt_type and those packets that need the extended header would just be a new packet
type. In that way we would not reserve one bit (or actually implicitly always having extended header
for each packet type) extended header.
- With C-flag being part of pkt_type -> max 64 packets and selectively introduce an additional packet
type for one that needs also extended header.
- Seen as a good idea. We take this as a working assumption now and reflect that in the spec.
* Start of frame:
- Jouni apologized the confusion during the August meeting about the S-bit. That really
should mark the start of a radio frame like the 10ms frame in LTE.
- Seen as a good idea. We take this as a working assumption now and reflect that in the spec.
* Other discussion related to start of frame was on the use of E-bit (end of frame). That has
been discussed in past and its usefulness.
- Jouni proposed that we dump E-bit and move it to flow_id -> would extend flow_id to max 128.
- Richard & Raz think this is a good idea. We take this as a working assumption now and reflect that
in the spec.
Decisions:
* Move C-flag to pkt_type (making pkt_type 6 bit field)
* Packets needing extended header will be given a new pkt_type: example normal data packer
has pkt_type 0x01 and one with extended header 0x21.
* S-flag marks the beginning of a radio frame like 10ms LTE frame.
* E-flag removed and moved to be moved to flow_ids.
- Jouni
--
Jouni Korhonen, CTO Office, Networking, Broadcom Corporation
O: +1-408-922-8135, M: +1-408-391-7160