Re: [6tisch] Protocol Action: '6TiSCH Operation Sublayer Protocol (6P)' to Proposed Standard (draft-ietf-6tisch-6top-protocol-12.txt)

2018-08-20 Thread Qin Wang
Great! On Thursday, August 16, 2018, 9:38:13 AM EDT, The IESG wrote: The IESG has approved the following document: - '6TiSCH Operation Sublayer Protocol (6P)'   (draft-ietf-6tisch-6top-protocol-12.txt) as Proposed Standard This document is the product of the IPv6 over the TSCH mode of

Re: [6tisch] Alexey Melnikov's Discuss on draft-ietf-6tisch-6top-protocol-11: (with DISCUSS and COMMENT)

2018-04-19 Thread Qin Wang
Hi Alexey, Thank you for your further comments. Please see inline. Qin On Thursday, April 12, 2018, 1:20:01 PM EDT, Alexey Melnikov wrote: Hi Xavi, On Fri, Apr 6, 2018, at 4:39 PM, Xavi Vilajosana Guillen wrote: Dear Alexey,  We are answering here the two emails we received from you

Re: [6tisch] Review of draft-ietf-6tisch-6top-protocol-09

2018-03-26 Thread Qin Wang
Xavi,  The response to Nicola is very good.  Many thanksQin On Monday, March 26, 2018, 1:53:26 AM EDT, Xavi Vilajosana Guillen wrote: Dear Nicola, Thank you so much for your proposal and review of the draft. We did not answer before as we wanted to discuss all the comments we received

Re: [6tisch] Genart telechat review of draft-ietf-6tisch-6top-protocol-09

2018-03-06 Thread Qin Wang
notifying you in advance, and thank you for your review again. ThanksQin On Monday, March 5, 2018 8:21 PM, Brian E Carpenter wrote: Hi, On 27/02/2018 05:31, Qin Wang wrote: ... > [Qin] Add following textin both section 3.1.1 and 3.1.2 > In case a race conditionhappens duri

Re: [6tisch] Genart telechat review of draft-ietf-6tisch-6top-protocol-09

2018-02-26 Thread Qin Wang
Hi Bian, Thank you for your comments. Please see inline. On Friday, February 23, 2018 6:11 PM, Brian E Carpenter wrote: Hi Qin, see in line: On 24/02/2018 04:16, Qin Wang wrote: > Hi Brian, > Thank you very much for your comments. Please see inline. > > On Monday, Febru

Re: [6tisch] Genart telechat review of draft-ietf-6tisch-6top-protocol-09

2018-02-23 Thread Qin Wang
Hi Brian, Thank you very much for your comments. Please see inline. On Monday, February 19, 2018 6:22 PM, Brian Carpenter wrote: Reviewer: Brian Carpenter Review result: Ready with Issues Gen-ART Last Call review of draft-ietf-6tisch-6top-protocol-09 I am the assigned Gen-ART reviewer fo

Re: [6tisch] Sheperd's WGLC review for draft-ietf-6tisch-6top-protocol-08

2017-09-29 Thread Qin Wang
Pascal and Diego, thank you very much for your comments. Xavi, let me know what I can help. ThanksQin On Friday, September 29, 2017 8:30 AM, Xavi Vilajosana Guillen wrote: Hi, yes I will do it asap.  thanks Pascal for the comments!!X 2017-09-29 14:12 GMT+02:00 Thomas Watteyne : Thanks

Re: [6tisch] Regarding IPR on draft-ietf-6tisch-6top-protocol

2017-09-26 Thread Qin Wang
No, I'm not aware of any IPR that applies to this draft. Qin On Tuesday, September 26, 2017 4:16 AM, Pascal Thubert (pthubert) wrote: Authors, Contributors, WG,   As part of the preparation for WG Adoption Call:   Are you aware of any IPR that applies to drafts identified above?  

Re: [6tisch] Question about the Relocation in 6P

2017-09-11 Thread Qin Wang
mandatory. This idea can maintain the consistency with ADD and DELETE.   Which one do you think is better? Using the empty cell or using two CellLists in the response message?   Best regards,   Remy From: Qin Wang [mailto:qinwang6...@yahoo.com] Sent: Thursday, September 07, 2017 3:39 AM To: Liubing

Re: [6tisch] Question about the Relocation in 6P

2017-09-06 Thread Qin Wang
Hi  Ramy, I can see your point. I think, as you proposed, a list of relocated cells in Response message may be a good idea, because it supports more flexibility. Take Fig 15 as an example. Assume only (4,2) is available at nodeB. If (1,2) is relocated to (4,2), then, the list of relocated cells

[6tisch] Fw: Qin comments on SF0

2017-06-09 Thread Qin Wang
Hi Diego, I'm not sure if you got this email. So, I re-send it. ThanksQin On Monday, May 1, 2017 5:22 PM, Qin Wang wrote: Dear authors, I read through SF0 (v4). The following is my comments. 2. Introduction ü   “The Scheduling Algorithmcollects the cell allocation/deletionrequests

Re: [6tisch] 6P comments

2017-06-07 Thread Qin Wang
defined and explained in SF0 draft. What do you think? Thanks Qin  On Wednesday, June 7, 2017 3:54 PM, Qin Wang wrote: Hi Jonathan, Thank you very much for your review. Please see inline. Qin On Wednesday, June 7, 2017 11:21 AM, Jonathan Muñoz wrote: Dear 6P authors, W.G, I

Re: [6tisch] 6P comments

2017-06-07 Thread Qin Wang
Hi Jonathan, Thank you very much for your review. Please see inline. Qin On Wednesday, June 7, 2017 11:21 AM, Jonathan Muñoz wrote: Dear 6P authors, W.G, I read the 6top Protocol draft - v05, and I find it very clear. I have some questions and few comments. Hopefully you'll find them u

Re: [6tisch] Timeout implementation on 6P/SF0

2017-05-22 Thread Qin Wang
Hi Diego and all, According to my understanding, TTL is the lifetime of a Message and its function is different from Timeout. For example, when nodeA sends a ADD-Request to nodeB, nodeA can set Timeout in a local Timer counting for the maximum waiting time for Response from nodeB, and, at same t

[6tisch] consideration on initial status in Figure 1, SF0 draft

2017-05-12 Thread Qin Wang
Hi Diego, Just below Figure 1, the text is as follows. -1.  If REQUIREDCELLS<(SCHEDULEDCELLS-SF0THRESH), delete one or more       cells.2.  If (SCHEDULEDCELLS-SF0THRESH)<=REQUIREDCELLS<=SCHEDULEDCELLS, do       nothing.3.   If SC

[6tisch] Qin comments on SF0

2017-05-01 Thread Qin Wang
Dear authors, I read through SF0 (v4). The following is my comments. 2. Introduction ü   “The Scheduling Algorithmcollects the cell allocation/deletionrequests from the   neighbors and thenumber of cells which are currently under usage.” ==> addition/deletion? allocation/deallocation?  4. SF0

Re: [6tisch] Comments/questions about 6P draft

2017-02-02 Thread Qin Wang
Hi Remy, Regarding to your question on 4.2.6.  6P CellOptions, the first column is the cell's type from node A's point of view, and the second column is the cell's type from node B's point of view. Does it make sense? ThanksQin On Thursday, February 2, 2017 8:09 AM, Remy Leone wrote:

Re: [6tisch] Fwd: I-D Action: draft-ietf-6tisch-minimal-19.txt

2017-01-25 Thread Qin Wang
Hi Xavi, I have just read minimal v19, and the difference between v18 and v19. I have some comments as follows.(1) In section 8, K2 is used to replace KL in the sentence "Provisioning a network with a fixed link key K2 is not secure." I wonder if it should be K1 instead of K2 to be used to repla

Re: [6tisch] Adding A cellOptin field to 6P Clear Request Command

2017-01-23 Thread Qin Wang
ction and decided to CLEAR my TX cells to my current next hop and move on, I do not exactly know how many cells have been allocated and what they are. Does that make sense ? Regards, Sedat On 21 Jan 2017 12:19 am, "Qin Wang" wrote: Hi Sedat, I think CLEAR is usually used when i

Re: [6tisch] Adding A cellOptin field to 6P Clear Request Command

2017-01-20 Thread Qin Wang
Hi Sedat, I think CLEAR is usually used when inconsistency in schedules of a pair of nodes is detected. In your case, DELETE, instead of CLEAR, can be used. In addition, DELETE already has CellOption field. Make sense? ThanksQin  On Friday, January 20, 2017 11:22 AM, Sedat Gormus wrote:

Re: [6tisch] 6P "design team" session this Friday, same time as interim meeting

2016-12-19 Thread Qin Wang
Hi Xavi, Thanks for the summary. Please see inline. > > >I tried to summarize the action items we identified during the call. Please >comment if you do not agree. Here a list: > > >1 clarify the use of RC_END_OF_LIST text upon receiving a list command and >reaching the end of the list [Qin]: ag

Re: [6tisch] 6P "design team" session this Friday, same time as interim meeting

2016-12-16 Thread Qin Wang
Hi Simon, I agree to your detailed analysis about with/without adding Confirmation. I would like add the possible processes after the transactions. After 2-way transaction, node A will find the inconsistency by generation counter when it starts a new transaction.  And then, node A can send CLEAR

Re: [6tisch] 6P "design team" session this Friday, same time as interim meeting

2016-12-15 Thread Qin Wang
Hi Yatch and all, I think 6top as a sublayer should support broadcast/multicast, but it may not necessary for 6P to support scheduling cells for broadcast/multicast dynamically. There may be two solutions for broadcast/multicast. One is use EB cell in slotframe 0, because it is not supposed that

Re: [6tisch] [6TiSCH] sixtop relocation command format/sixtop general message format?

2016-12-12 Thread Qin Wang
Hi Tengfei, My impression on your proposal is that you are trying to use the combination of the length of ADD CellList and DELETE CellList as sort of operation code. Right? If 6P really needs so many operations, why do we just add more operation codes, which could cost just 1 more bit? ThanksQin

Re: [6tisch] Call for adoption of ddraft-vucinic-6tisch-minimal-security as WG document

2016-12-09 Thread Qin Wang
+1 Qin On Friday, December 9, 2016 6:23 AM, peter van der Stok wrote: +1 peter I hope the bootstrap drafts can be combined. Tengfei Chang schreef op 2016-12-09 11:45: > +1. I support to adopt this draft. It's important to have this secure > joining process in 6TiSCH network. > > Teng

Re: [6tisch] Handling Inconsistent Allocation in 6P

2016-12-01 Thread Qin Wang
consistency until a subsequent transaction; it   may take a long time. The reactive approach using timeout doesn't have such disadvantages; furthermore, it's simpler than the the schedule generation management, in my opinion. I still cannot see why the generation management at 6P is re

Re: [6tisch] Handling Inconsistent Allocation in 6P

2016-11-30 Thread Qin Wang
to confirm inconsistency if the schedule generation inconsistency detection was disabled... Best, Yatch On 2016/11/29 22:40, Qin Wang wrote: > Hi Yasuyuki, > > I'm not sure I fully understand you. > > Let's assume node A wants to ADD cells with nodeB in 2-step > transaction.

Re: [6tisch] Handling Inconsistent Allocation in 6P

2016-11-29 Thread Qin Wang
Hi Yasuyuki, I'm not sure I fully understand you. Let's assume node A wants to ADD cells with nodeB in 2-step transaction. After nodeA sends ADD Request to nodeB, the Timeout of nodeA is set. nodeB receives the ADD Request, adds the cells to its schedule and sends Response back to nodeA at same

Re: [6tisch] Handling Inconsistent Allocation in 6P

2016-11-23 Thread Qin Wang
Hi Yasuyuki, Regarding to the reasons of inconsistent allocation asked in your email, I think, roughly speaking, they are (1) failure in communication because of PHY problems like bed channel condition, collision, and (2) failure in processing because of MAC problems such as buffer overflow.  Th

Re: [6tisch] Call for adoption of draft-richardson-6tisch-dtsecurity-secure-join as WG document

2016-11-23 Thread Qin Wang
+1 Qin On Wednesday, November 23, 2016 3:37 PM, Kristofer PISTER wrote: +1 ksjp On Wed, Nov 23, 2016 at 5:15 AM, Prof. Diego Dujovne wrote: +1 El nov 23, 2016 10:06 AM, "Xavi Vilajosana Guillen" escribió: Hi, I also support this draft as a zero touch approach to enable secure join

Re: [6tisch] Call for adoption of ddraft-vucinic-6tisch-minimal-security as WG document

2016-11-23 Thread Qin Wang
+1Qin On Wednesday, November 23, 2016 2:56 AM, Pascal Thubert (pthubert) wrote: Dear all : The sense of the room at the WG meeting at IETF 97 in Seoul was that draft-richardson-6tisch-dtsecurity-secure-join and draft-vucinic-6tisch-minimal-security could be combined as a staged join

Re: [6tisch] [6P+SF0] CALL FOR CONSENSUS: sending a CLEAR request to old parents

2016-11-23 Thread Qin Wang
+1 Qin On Tuesday, November 22, 2016 2:17 AM, Thomas Watteyne wrote: In thread "Node Behavior at Boot in SF0" (https://www.ietf.org/mail-archive/web/6tisch/current/msg04883.html), we ended up discussing the following paragraph  https://tools.ietf.org/html/draft-ietf-6tisch-6top-sf0-0

Re: [6tisch] 6TiSCH WG meeting @IETF97: remote participation

2016-11-17 Thread Qin Wang
Hi Thomas, >From the SF0 presentation slides, I can see the Timeout mechanism is still in >discussion. It is not clear who will be responsible for setting Timeout, SF0 >or 6P. And this modification you mentioned is related. Right? Maybe I missed >something. ThanksQin On Wednesday, November

Re: [6tisch] SF Timeout calculation (Ticket #53)

2016-10-31 Thread Qin Wang
Hi Nicola and Diego, Since we agree Timeout is needed no matter what schemes we will choose, let's make calculation about the Timeout in different schemes. Assume:t1: Node A 6top prepares ADD Requestt2: Node A 6top sends out ADD Request, ending with MAC-ACK successt3: Node B 6top processes ADD R

Re: [6tisch] SF Timeout calculation (Ticket #53)

2016-10-31 Thread Qin Wang
Hi Nicola, I want to confirm my understanding first.  Your proposal is to introduce a new 6P message, i.e. 6P ACK message, into a transaction, then the sequence of a original 2-way ADD transaction will be: (1) node A SF0 sets "adding TX cells" OPEN, and 6top layer sends ADD request to nodeB(2) n

Re: [6tisch] Link Options bitmap in 6P Cell format

2016-10-06 Thread Qin Wang
the priority field for example also interesting. I agree however that we use 5-extra bits per requested cell and that the timekeeping and priority fields are not in the scope as of today. Maybe even 8 if we leave some reserved bits as 15.4. thoughts?X 2016-10-05 17:27 GMT+02:00 Qin Wang : Hi Tero

Re: [6tisch] Link Options bitmap in 6P Cell format

2016-10-05 Thread Qin Wang
Hi Tero, Thank you for the update.  According to my understanding, the flag used in 6P is trying to define the communication direction of scheduled cell(s). So, I wonder if 2 bits flag is enough. ThanksQin  On Wednesday, October 5, 2016 11:03 AM, Tero Kivinen wrote: Qin Wang writes

Re: [6tisch] Link Options bitmap in 6P Cell format

2016-10-05 Thread Qin Wang
Hi Xavi, In IEEE802.15.4e, LinkOptions is defined as follows. Is it what you are going to use? Then, another way is to use two bits to express TX/RX/Share. I'm not sure which way is better than another. ThanksQin On Wednesday, October 5, 2016 9:40 AM, Xavier Vilajosana wrote: Hi, fo

Re: [6tisch] [6TiSCH] return code in 6p response defined in sixtop draft

2016-10-03 Thread Qin Wang
Hi, Regarding to how to choose a error code when multiple error codes could be candidate, I think we can use a simple rule as follows. If a specific error code, such as RC_ERR_NORES, is matched to the abnormal situation, then the specific error code must be used. If there is no specific error co

Re: [6tisch] follow up LIST cmd 6P

2016-09-07 Thread Qin Wang
Hi Xavi, I think there are two scenarios which may result in the number of cells in the CellList of response packet less than numCells_max, (1)  when node B has N cells, where Offset wrote: Hi, according to our discussion during the last 6TiSCH meeting I want to follow up Tero's proposal for

Re: [6tisch] proposed text to describe SF and 6P in archie

2016-06-06 Thread Qin Wang
Hi Pascal In the paragraph"The SF may be seen as divided between an upper bandwidth adaptation   logic that is not aware of the particular technology that is used to   obtain and release bandwidth, and an underlying service sublayer that   maps those needs in the actual technology, which means m

Re: [6tisch] Slot type in 6P cell list

2016-06-06 Thread Qin Wang
Hi all, I think Sedat raised a good question.  The explicit expression of LinkOption may be more flexible and more efficient if we can find application in which a Node knows the need of two-way communication bandwidth at a time. In  another word, the current assumption for implicit expression is

Re: [6tisch] New error type for concurrent transactions on 6top protocol draft

2016-05-25 Thread Qin Wang
Hi Diego, I understand your concern and  your proposal to have two return codes corresponding to no enough resource and candidate cells in Lock status. But I think SF is better place to handle it. For example,  in Metadata of response message, 1-bit Flag can be used to distinguish (1) No Enough

Re: [6tisch] New error type for concurrent transactions on 6top protocol draft

2016-05-24 Thread Qin Wang
+1 Qin On Tuesday, May 24, 2016 1:22 PM, Xavier Vilajosana wrote: Looks good to me! ===A node MAY support concurrent 6P Transactions from different neighbors.  In this case the cells involved in the ongoing 6P transaction MUST be locked until the transaction finishes. For example, in

Re: [6tisch] Doubts in 3-step transactions mentioned in draft-wang-6tisch-6top-protocol-00

2016-04-27 Thread Qin Wang
Hi Seema and Satish, Thank you for your comments. We will correct the tpyo you mentioned.  Regarding to 3-step transaction, let me explain the motivation behind it. Assume node A is a Child of node B, then usually node B has more knowledge about the cell usage, right? But sometime, the Child may

Re: [6tisch] comments on latest terminology draft

2016-04-27 Thread Qin Wang
Hi all, Do we really need the term "Link"? IMO, "Link" in 6TiSCH is same as Bundle. Right? ThanksQin On Friday, April 22, 2016 9:07 AM, Maria Rita PALATTELLA wrote: #yiv5085214591 #yiv5085214591 -- _filtered #yiv5085214591 {panose-1:2 4 5 3 5 4 6 3 2 4;} _filtered #yiv5085214591 {font

Re: [6tisch] 6P and Sf0 issue: Piggybacking data packet with IE confirmation

2016-03-09 Thread Qin Wang
ually sync. What do you think? Pascal Le 8 mars 2016 à 22:34, Qin Wang a écrit : Hi Diego, I also have question regarding to the third message, i.e. Child acknowledge.  In this case, the Child must accept the selected cells in the Parent's message if it received the message. Right? In an

Re: [6tisch] 6P and Sf0 issue: Token to identify transactions in 6P

2016-03-09 Thread Qin Wang
d the serialization of requests but I agree that is a non goal today. Regards, Pascal Le 8 mars 2016 à 22:10, Qin Wang a écrit : Hi all, I'm not convinced that token is necessary yet. From the discussion in the last WG meeting, we have agreed that the Token is used in the 6P messag

Re: [6tisch] 6P and Sf0 issue: Piggybacking data packet with IE confirmation

2016-03-08 Thread Qin Wang
Hi Diego, I also have question regarding to the third message, i.e. Child acknowledge.  In this case, the Child must accept the selected cells in the Parent's message if it received the message. Right? In another word, if the Parent knows the Child has received the message correctly, the Parent c

Re: [6tisch] 6P and Sf0 issue: Token to identify transactions in 6P

2016-03-08 Thread Qin Wang
Hi all, I'm not convinced that token is necessary yet. From the discussion in the last WG meeting, we have agreed that the Token is used in the 6P message exchange between neighbors. Based on the agreement, let's consider the two following scenarios. (1) nodeA send ADD_Request(token=1) to nodeB,

[6tisch] information model or data model in the new charter

2016-01-22 Thread Qin Wang
Dear all, In today's Webex meeting, we were talking about the feedback from Bonoit about the new Charter, see [6tisch] Benoit Claise's No Objection on charter-ietf-6tisch-01-00: (with COMMENT), and want to continue the discussion in the ML.  The question is what is exactly we want to do with Yan

Re: [6tisch] Typeof sixtop subIE:short or long

2016-01-11 Thread Qin Wang
I think both of the two format are fine. But, if IEEE802.15 recommends the second one, I think we should choose the second. ThanksQin On Monday, January 11, 2016 11:17 AM, "pat.kin...@kinneyconsultingllc.com" wrote: Thank you for the figures, I agree on both, especially the second one.

Re: [6tisch] Cell types for 6top protocol

2016-01-08 Thread Qin Wang
Hi Pascal and all, I think chunk is a good idea to avoid conflicts in cell allocation. According to my understanding, a Chunk is a part of a superframe, and thus inherits the properties of the superframe like priority.  In the draft-ietf-6tisch-6top-interface, you can find two data structures re

Re: [6tisch] #40 (minimal): Ralph's INT AREA review on minimal

2015-12-11 Thread Qin Wang
Hi Pat, According to my understanding, in the TSCH mode of 802.15.4, if the attribute of a slot is Shared, slotted- aloha access should be allowed in the slot. Right? ThanksQin On Friday, December 11, 2015 2:29 PM, "pat.kin...@kinneyconsultingllc.com" wrote: Xavi; As I understand slot

Re: [6tisch] Comments on the 6top-sublayer and 6top-sf0 drafts

2015-11-10 Thread Qin Wang
Hi Maria Rita and all, For support RPL structure of parent & children, I agree to think upstream and downstream resource reservation separately. But, I'm not sure if we should use 3-phase protocol for upstream resource reservation, because that means 1/3 communication cost will be added for one

Re: [6tisch] New Version Notification for draft-wang-6tisch-6top-sublayer-03.txt

2015-10-28 Thread Qin Wang
HI Charlie, See the inline. I marked with names for others to read. Hello Qin, Thanks for your quick reply.  Follow-up below... On 10/27/2015 8:44 AM, Qin Wang wrote: 1.There is a strong need for non-local statistics, for instance flow statistics[Qin] Since different Scheduling Function (SF

Re: [6tisch] New Version Notification for draft-wang-6tisch-6top-sublayer-03.txt

2015-10-27 Thread Qin Wang
Hi Charlie, Thank you very much for your comments. We will address the comments in your attached file (Diff draft-wang-6tisch-6top-sublayer-03.txt - draft-wang-6tisch-6top-sublayer-03cep.txt.htm) in the next version. In the following, I would like to discuss with you regarding to your questions

Re: [6tisch] OTF: IP or not IP?

2015-10-09 Thread Qin Wang
Hi Pascal and all, I don't understand the meaning of  "with the capability for IoT routers to appropriatechunks of the matrix without starving, or interfering with, other 6TiSCH nodes." (even IoT routers is replaced with "6tisch router"). I cannot figure out what the capability is. Can you expla

Re: [6tisch] ChongGang's point on item 3 to specify P2P operations

2015-10-09 Thread Qin Wang
Hi Pascal, Can you explain more about "with the capabilityfor IoT routers to appropriate chunks of the Time/frequency matrix withoutstarving, or interfering with, other 6TiSCH nodes."? ThanksQin On Friday, October 9, 2015 11:57 AM, Pascal Thubert (pthubert) wrote: Dear all :  

Re: [6tisch] 6top-interface-04

2015-09-30 Thread Qin Wang
? ThanksQin On Wednesday, September 30, 2015 2:16 PM, Tero Kivinen wrote: Qin Wang writes: > In the IEEE802.15.4e, there are two attributes related with a cell, i.e. > LinkOption and LinkType. LinkOption indicates TX, RX, Shared, or Timekeeping; > and LinkType indicates

Re: [6tisch] 6top-interface-04

2015-09-30 Thread Qin Wang
the reader.   Thanks for the reply! Randy   From: Qin Wang [mailto:qinwang6...@yahoo.com] Sent: Wednesday, September 30, 2015 10:43 AM To: Turner, Randy; 6tisch@ietf.org Subject: Re: [6tisch] 6top-interface-04   Hi Randy,   In the IEEE802.15.4e, there are two attributes related with a cell, i.e.

Re: [6tisch] 6top-interface-04

2015-09-30 Thread Qin Wang
Hi Randy, In the IEEE802.15.4e, there are two attributes related with a cell, i.e. LinkOption and LinkType. LinkOption indicates TX, RX, Shared, or Timekeeping; and LinkType indicates Normal or Advertising. According to my understanding, if the attributes of a cell are set as LinkOption = TX and

Re: [6tisch] Comment to draft-wang-6tisch-6top-coapie-01.txt

2015-07-23 Thread Qin Wang
Hi Pat, Since there are two approaches mentioned in the discussion, i.e. (1) containing 6top-to-6top message in a specific payload IE (coapie), (2) using the mechanism provided by IEEE802.15.9 to convey the 6top-to-6top message, I would like to do more evaluation. I couldn't find the IEEE802.15.

Re: [6tisch] Comment to draft-wang-6tisch-6top-coapie-01.txt

2015-07-21 Thread Qin Wang
some answer? I may missed something.  ThanksQin On Wednesday, July 22, 2015 12:36 AM, Tero Kivinen wrote: Qin Wang writes: > Before going to 802.15.9, I would like to discuss more about the > coapie approach. In the 802.15.4e, the range (0x2-0x9) of group ID > for payl

Re: [6tisch] Comment to draft-wang-6tisch-6top-coapie-01.txt

2015-07-21 Thread Qin Wang
Hi Tero, Thank you for your comments. Before going to 802.15.9, I would like to discuss more about the coapie approach. In the 802.15.4e, the range (0x2-0x9) of group ID for payload IE is unmanaged. I thought IEEE802.15.4 WG had discussed how to use those Group ID, and also taken the requirement

[6tisch] attributes of 6top YANG model (version 4) corresponding to K1 and K2

2015-07-14 Thread Qin Wang
Hi All, The new version 6top interface draft has been published  https://datatracker.ietf.org/doc/draft-ietf-6tisch-6top-interface/. One of the new parts is the container SecurityAttributes of YANG model. According to the discussion on WG meeting, the SecurityAttributes is designed following the

Re: [6tisch] attributes of 6top interface YANG model corresponding to K1 and K2

2015-07-14 Thread Qin Wang
14, 2015 5:36 AM, Michael Richardson wrote: Qin Wang wrote:     > Thank you very much for your comments. Can I bring the discussion thread to     > 6tisch ML? Yes, you can forward, or I can reply.  I will include my entire email if you want...  yeah let me just write. I was

Re: [6tisch] draft-dujovne-6tisch-on-the-fly-05

2015-07-01 Thread Qin Wang
t. 237 michel.veille...@trilliantinc.comwww.trilliantinc.com   |   From: Qin Wang [mailto:qinwang6...@yahoo.com] Sent: 1 juillet 2015 11:28 To: Nicola Accettura; Michel Veillette Cc: 6tisch@ietf.org; diego.dujo...@mail.udp.cl Subject: Re: [6tisch] draft-dujovne-6tisch-on-the-fly-05 Hi Michel and Nicola,  I think Michel's

Re: [6tisch] draft-dujovne-6tisch-on-the-fly-05

2015-07-01 Thread Qin Wang
Hi Michel and Nicola, I think Michel's idea is interesting. But, according to my understanding, the Frame Pending setting just means there is frame following, does not mean that the current bandwidth provided by TSCH schedule, including hard cells and soft cells, is not enough to convey those fr

Re: [6tisch] 6top and neighbour list

2015-06-10 Thread Qin Wang
). make sense? ThanksQin On Wednesday, June 10, 2015 9:12 PM, Michael Richardson wrote: Qin Wang wrote:     > NeighborList contains the Link information, and the information about     > Parent is contained in TimeSource for saving space. Make sense? I don't see how container

Re: [6tisch] 6top and neighbour list

2015-06-10 Thread Qin Wang
Hi Michael, Regarding to including DAG rank into 6top NeighborList, I think,  besides RPL, there may be other routing protocols working on top of 6top in the future. Thus, it could be better to decouple 6top sublayer and upper layer protocol like RPL. What do you think?  What other people think?

Re: [6tisch] 6top and neighbour list

2015-06-10 Thread Qin Wang
[mailto:6tisch-boun...@ietf.org]On Behalf Of Qin Wang Sent: mardi 9 juin 2015 13:58 To: Michael Richardson; 6tisch@ietf.org Subject: Re: [6tisch] 6top and neighbour list   Hi Michael,   NeighborList contains the Link information, and the information about Parent is contained in TimeSource for saving

Re: [6tisch] 6top and neighbour list

2015-06-09 Thread Qin Wang
37 michel.veille...@trilliantinc.com www.trilliantinc.com   |     From: Qin Wang [mailto:qinwang6...@yahoo.com] Sent: 9 juin 2015 16:46 To: Michel Veillette; Michael Richardson; 6tisch@ietf.org Subject: Re: [6tisch] 6top and neighbour list   Hi Michael and Michel,   The attached file is the Yang mode

Re: [6tisch] 6top and neighbour list

2015-06-09 Thread Qin Wang
Hi Michael, NeighborList contains the Link information, and the information about Parent is contained in TimeSource for saving space. Make sense? ThanksQin    On Wednesday, June 10, 2015 1:33 AM, Michael Richardson wrote: 1) I was reading draft-ietf-6tisch-6top-interface-03. 2) It

Re: [6tisch] 6top and neighbour list

2015-06-09 Thread Qin Wang
Hi Michael and Michel, The attached file is the Yang model, which has been embedded into 6top interface draft. ThanksQin On Wednesday, June 10, 2015 4:23 AM, Michel Veillette wrote: Hi Michael You will find in attachment the 6TiSCH YANG modules with a more consistent indentation

Re: [6tisch] 6top and transmit power control

2015-06-08 Thread Qin Wang
Hi Anand, Regarding to power management, there is a parameter in the IEEE802.15.4 PIB, i.e. phyTXPower. You can control the transmitting power by changing its value. Is that what you want? If so, I think 6tisch MIB will provide the interface to access phyTXPower, which will be defined in the 6ti

Re: [6tisch] "security" of EBs

2015-05-21 Thread Qin Wang
Hi Micheal and Jonathan, You bring up a good question, i.e. how to use EBs. I have the related questions.(1) Is it possible for a 6TiSCH network to change its timeslot format, or channel hopping sequence, or Frame & Link structure after ASN starts counting?(2) Is it possible to have more than on

Re: [6tisch] Minimal draft IEs examples

2015-05-12 Thread Qin Wang
Xavi, The format is very clear.  I think there is typo on line 54. That should be channel hopping sequence? ThanksQin On Tuesday, May 12, 2015 9:44 PM, Pascal Thubert (pthubert) wrote: #yiv9648369827 #yiv9648369827 -- _filtered #yiv9648369827 {font-family:Calibri;panose-1:2 15 5 2

Re: [6tisch] Shipping minimal

2015-05-12 Thread Qin Wang
eed that analysis for anything 6TiSCH, not minimal specifically. Cheers, Pascal > -Original Message- > From: Tero Kivinen [mailto:kivi...@iki.fi] > Sent: mardi 12 mai 2015 06:44 > To: Pascal Thubert (pthubert) > Cc: Qin Wang (qinwang6...@yahoo.com); Michael Richardson

Re: [6tisch] Issue #34 of draft-dujovne-6tisch-on-the-fly

2015-05-11 Thread Qin Wang
Hi Diego and Thomas, Firstly, I want to go through the combination of {Tx, Rx, Shared} and {Hard, Soft}. I think Tx or Rx can go with both Hard and Soft, but Shared can only go with Hard. The reason is Shared cell could be used by more than a pair of nodes, so monitoring function (i.e. self moni

Re: [6tisch] security section in minimal

2015-05-11 Thread Qin Wang
+1 Qin On Monday, May 11, 2015 12:25 PM, Xavier Vilajosana wrote: Dear all, after the last call we would like to close the security section in minimal. We wrapped up all comments from the previous days and from the meeting and here is our proposal: This draft assumes the existence

Re: [6tisch] differential security for CoAP resources

2015-05-07 Thread Qin Wang
Hi Carsten, My understanding about the model is: a URI is associated with a set of access permission. Correct? If we want that different Client has different access permission to a resource, e.g. node A is allowed to GET/PUT /6t/cellList in node C, but node B is only allowed to GET /6t/cellList

Re: [6tisch] differential security for CoAP resources

2015-05-07 Thread Qin Wang
S can establish a authorization access to resources even with ACE. ThanksQin On Friday, May 8, 2015 12:24 AM, Thomas Watteyne wrote: Isn't that exactly authorization, for which (Half of) the A in ACE stands for?  On Thursday, May 7, 2015, Qin Wang wrote: To address Kris

Re: [6tisch] differential security for CoAP resources

2015-05-07 Thread Qin Wang
To address Kris's question, I agree with Tero that there are two security elements involved, one is something like DTLS to secure the network access; another is ACL to guarantee right access to the database in devices. ThanksQin   On Thursday, May 7, 2015 9:46 PM, Thomas Watteyne wrote:

Re: [6tisch] proposed text for minimal security

2015-05-06 Thread Qin Wang
+1. Qin On Wednesday, May 6, 2015 9:40 PM, Tom Phinney wrote: Let's put this to bed (i.e., reach a conclusion for this aspect). Saying less is very much in the spirit of "minimal". +1 === On 2015.05.05 14:46, Kris Pister wrote: > This is my proposed text for all of section 8.  This d

Re: [6tisch] Shipping minimal

2015-05-06 Thread Qin Wang
Pascal, The protection against transmission errors on EBs rely on the CRC in PSDU, right? ThanksQin On Wednesday, May 6, 2015 6:34 PM, Pascal Thubert (pthubert) wrote: Hum... But then, if the JN does not know K1, how can it validate the MIC? Do  we have another way to protect aga

Re: [6tisch] Shipping minimal

2015-05-01 Thread Qin Wang
Hi Pascal, After the discussion in the thread "Removing the "e" in the charter", do you still ask agreement about solution on the second point?  Personally, I prefer the text suggested by Pat, because it can decouple 6TiSCH from IEEE802.15.4 MAC. But, if the minimal draft is not final standard, I

Re: [6tisch] Removing the 'e' in the charter

2015-04-30 Thread Qin Wang
Hi all, I understand that reference IEEE 802.15.4 includes IEEE802.15.4e by definition. But I have a problem in writing 6TiSCH draft if we remove "e" in reference.   Here is an example. "A 10ms time slot length is the default value defined by   [IEEE802154e].  Section 6.4.3.3.3 of [IEEE802154e] de

Re: [6tisch] draft-ietf-6tisch-minimal Section 4.4.1. IE Header

2015-04-25 Thread Qin Wang
Hi Ismail, The reason is there could be more than one frame IE/Link IE. The length of Frame IE/Link IE equal to number of frame/link times the length of one frame/link data. Make sense? QIn  On Saturday, April 25, 2015 8:06 PM, ismail hakkı turan wrote: Hello,I am currrently tryin

Re: [6tisch] a little puzzle

2015-04-23 Thread Qin Wang
Hi Thomas and Xavi, I agree that with the a well-known key based MIC, some useless "start to join" can be avoided. However, it is under the assumption that there is no other 6tisch networks, right? If there are more than one 6tisch networks in the same area, and all of them use the well-known  k