Re: I-D Action: draft-ietf-bfd-yang-06.txt
"Reshad Rahman (rrahman)" <rrahman@cisco.com> Fri, 28 July 2017 15:08 UTC
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From: "Reshad Rahman (rrahman)" <rrahman@cisco.com>
To: "Acee Lindem (acee)" <acee@cisco.com>, Yingzhen Qu <yingzhen.qu@huawei.com>, Jeffrey Haas <jhaas@pfrc.org>, "rtg-bfd@ietf.org" <rtg-bfd@ietf.org>
CC: "draft-ietf-bfd-yang@ietf.org" <draft-ietf-bfd-yang@ietf.org>, "draft-ietf-ospf-yang@ietf.org" <draft-ietf-ospf-yang@ietf.org>
Subject: Re: I-D Action: draft-ietf-bfd-yang-06.txt
Thread-Topic: I-D Action: draft-ietf-bfd-yang-06.txt
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Date: Fri, 28 Jul 2017 15:08:48 +0000
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References: <149885255897.4584.3006333522740435620@ietfa.amsl.com> <20170705162103.GQ2289@pfrc.org> <D596866E.2C3552%rrahman@cisco.com> <594D005A3CB0724DB547CF3E9A9E810B5227CF@dfweml501-mbb> <D59904F6.2C51B4%rrahman@cisco.com> <D59FB0AD.BA38A%acee@cisco.com> <D59FB38C.2CE83D%rrahman@cisco.com> <D59FB594.BA3A0%acee@cisco.com> <D59FB7D2.2CE8F1%rrahman@cisco.com> <D59FB934.BA3C3%acee@cisco.com> <D59FBE2A.2CEA06%rrahman@cisco.com> <D5A01A7B.BA49E%acee@cisco.com>
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Hi Acee, Got rid of ietf-bfd-clients. I have added example-bfd-client module to provide an example. Regards, Reshad. On 2017-07-27, 10:34 PM, "Acee Lindem (acee)" <acee@cisco.com> wrote: >Hi Reshad, > >Ok - I see now. I was looking at the wrong xxxx-base-cfg-parms groupings. >Fewer similar grouping and modules will be better ;^) > >Thanks, >Acee > >On 7/27/17, 9:03 PM, "Reshad Rahman (rrahman)" <rrahman@cisco.com> wrote: > >>Hi Acee, >> >>What I see @ >>https://github.com/jhaas-pfrc/ietf-bfd-yang/blob/master/src/yang/ietf-bfd >>- >>t >>ypes.yang: >>1) bfd-client-base-cfg-parms has leaf enabled only. BTW this grouping is >>defined twice, this will be fixed when I get rid of ietf-bfd-clients.yang >>2) bfd-grouping-base-cfg-parms has multiplier/timers. >> >>Let me get rid of the client module and have everything in the types >>module. >> >>I am not sure why you’re not seeing something different. >> >>Regards, >>Reshad. >> >> >> >>On 2017-07-27, 3:40 PM, "Acee Lindem (acee)" <acee@cisco.com> wrote: >> >>>Hi Reshad, >>> >>>On 7/27/17, 3:35 PM, "Reshad Rahman (rrahman)" <rrahman@cisco.com> >>>wrote: >>> >>>>Hi Acee, >>>> >>>>1) I’ll see if others chime in on this but I am fine with having the >>>>client grouping in ietf-bfd-types.yang. >>>>2) bfd-grouping-common-cfg-parms has much more than just the >>>>multiplier/timers that the IGPs need. It also has BFD specific stuff >>>>(demand-mode, BFD auth) which IMO has no business outside of BFD. >>> >>>Agreed. >>> >>> >>>>bfd-grouping-base-cfg-parms has only the multiplier/timers. >>> >>>Perhaps, the addition of multiplier/timers to >>>bfd-grouping-base-cfg-parms >>>isn’t pushed to GitHub yet. This version >>>https://github.com/jhaas-pfrc/ietf-bfd-yang/blob/master/src/yang/ietf-bf >>>d >>>- >>>t >>>ypes.yang only has the enabled leaf. >>> >>> >>>Thanks, >>>Acee >>> >>> >>>> >>>>Regards, >>>>Reshad. >>>> >>>> >>>> >>>>On 2017-07-27, 3:30 PM, "Acee Lindem (acee)" <acee@cisco.com> wrote: >>>> >>>>>Hi Reshad, >>>>> >>>>>On 7/27/17, 3:19 PM, "Reshad Rahman (rrahman)" <rrahman@cisco.com> >>>>>wrote: >>>>> >>>>>>Hi Acee, >>>>>> >>>>>>When we met we agreed to have a new model for clients. Afterwards I >>>>>>decided to create a new types module, and still went ahead with the >>>>>>clients module. I am fine with having everything in the types module >>>>>>(no >>>>>>client module). >>>>> >>>>>Although I don’t feel that strongly - I just don’t see that putting >>>>>the >>>>>client config params in wrappers provides any benefit. As for >>>>>detriments, >>>>>it requires more one more local modules for validation and one more >>>>>level >>>>>of indirection to see what we are really allowing to be configured. >>>>> >>>>>> >>>>>>I am not sure I fully understand your comment/question on >>>>>>bfd-client-ext-cfg-parms/bfd-grouping-common-cfg-parms. The reason we >>>>>>have >>>>>>2 groupings is that some protocols may decide to have just the enable >>>>>>leaf >>>>>>and others may also want the multiplier/timer. >>>>> >>>>>The bfd-client-ext-cfg-parms grouping should use >>>>>bfd-types:bfd-grouping-common-cfg-parms rather than >>>>>bfd-types:bfd-client-base-cfg-parms - no? This would be more obvious >>>>>w/o >>>>>the client module. >>>>> >>>>>Thanks, >>>>>Acee >>>>> >>>>> >>>>>> >>>>>>Regards, >>>>>>Reshad. >>>>>> >>>>>> >>>>>> >>>>>>On 2017-07-27, 3:07 PM, "Acee Lindem (acee)" <acee@cisco.com> wrote: >>>>>> >>>>>>>Hi Reshad, >>>>>>>Why do we need a new YANG model for clients? Why can’t they just use >>>>>>>ietf-bfd-types.yang? I’d like to avoid the unnecessary levels of >>>>>>>indirection. In fact, it looks wrong to me since the grouping >>>>>>>bfd-client-ext-cfg-parms uses the grouping >>>>>>>bfd-grouping-base-cfg-parms >>>>>>>which only contains the enabled leaf. I believe you meant to use >>>>>>>bfd-grouping-common-cfg-parms in the other new model. However, I >>>>>>>don’t >>>>>>>see >>>>>>>any reason why client shouldn’t use this directly. >>>>>>>Thanks, >>>>>>>Acee >>>>>>> >>>>>>>On 7/25/17, 2:33 PM, "Reshad Rahman (rrahman)" <rrahman@cisco.com> >>>>>>>wrote: >>>>>>> >>>>>>>>Hi Yingzhen, >>>>>>>> >>>>>>>>The grouping is available @ >>>>>>>>https://github.com/jhaas-pfrc/ietf-bfd-yang/blob/master/src/yang/ie >>>>>>>>t >>>>>>>>f >>>>>>>>- >>>>>>>>b >>>>>>>>f >>>>>>>>d >>>>>>>>- >>>>>>>>c >>>>>>>>lients.yang >>>>>>>> >>>>>>>>If you¹d like changes to the grouping, send me an email. >>>>>>>> >>>>>>>>Regards, >>>>>>>>Reshad. >>>>>>>> >>>>>>>>On 2017-07-21, 12:22 PM, "Yingzhen Qu" <yingzhen.qu@huawei.com> >>>>>>>>wrote: >>>>>>>> >>>>>>>>>Hi Reshad, >>>>>>>>> >>>>>>>>>Thanks for the summary. >>>>>>>>> >>>>>>>>>Both ospf and isis models will make corresponding changes when the >>>>>>>>>new >>>>>>>>>BFD grouping is available. >>>>>>>>> >>>>>>>>>Thanks, >>>>>>>>>Yingzhen >>>>>>>>> >>>>>>>>>-----Original Message----- >>>>>>>>>From: Reshad Rahman (rrahman) [mailto:rrahman@cisco.com] >>>>>>>>>Sent: Thursday, July 20, 2017 7:19 AM >>>>>>>>>To: Jeffrey Haas <jhaas@pfrc.org>; rtg-bfd@ietf.org >>>>>>>>>Cc: draft-ietf-bfd-yang@ietf.org; draft-ietf-ospf-yang@ietf.org >>>>>>>>>Subject: Re: I-D Action: draft-ietf-bfd-yang-06.txt >>>>>>>>> >>>>>>>>>We (BFD and OSPF YANG authors) had a discussion yesterday. >>>>>>>>> >>>>>>>>>The agreement is that since IGP peers are auto-discovered, we want >>>>>>>>>to >>>>>>>>>add >>>>>>>>>back the basic BFD config (multiplier + intervals) in IGP via a >>>>>>>>>grouping. >>>>>>>>>BFD will provide that grouping in a specific YANG module. IGP BFD >>>>>>>>>YANG >>>>>>>>>will be in a separate module (separate from the main IGP module). >>>>>>>>> >>>>>>>>> >>>>>>>>>Regards, >>>>>>>>>Reshad. >>>>>>>>> >>>>>>>>>On 2017-07-05, 12:21 PM, "Rtg-bfd on behalf of Jeffrey Haas" >>>>>>>>><rtg-bfd-bounces@ietf.org on behalf of jhaas@pfrc.org> wrote: >>>>>>>>> >>>>>>>>>>Thanks authors for the edits on the BFD yang module. This gets >>>>>>>>>>us >>>>>>>>>>a >>>>>>>>>>significant step closer to alignment with the rest of IETF for >>>>>>>>>>network >>>>>>>>>>instancing. >>>>>>>>>> >>>>>>>>>>I'd like to encourage the working group to provide feedback on >>>>>>>>>>this >>>>>>>>>>issue and also the changes in the module. >>>>>>>>>> >>>>>>>>>>As noted in another thread, we still have to figure out how to >>>>>>>>>>deal >>>>>>>>>>with accommodating interaction of the BFD yang module with client >>>>>>>>>>protocols. >>>>>>>>>>For >>>>>>>>>>example, the IGPs. In particular, how do you configure the >>>>>>>>>>properties >>>>>>>>>>of the BFD sessions that may be dynamically instantiated based on >>>>>>>>>>control protocol activity? >>>>>>>>>> >>>>>>>>>>-- Jeff >>>>>>>>>> >>>>>>>>>>On Fri, Jun 30, 2017 at 12:55:59PM -0700, >>>>>>>>>>internet-drafts@ietf.org >>>>>>>>>>wrote: >>>>>>>>>>> >>>>>>>>>>> A New Internet-Draft is available from the on-line >>>>>>>>>>>Internet-Drafts >>>>>>>>>>>directories. >>>>>>>>>>> This draft is a work item of the Bidirectional Forwarding >>>>>>>>>>>Detection >>>>>>>>>>>of the IETF. >>>>>>>>>>> >>>>>>>>>>> Title : YANG Data Model for Bidirectional >>>>>>>>>>>Forwarding >>>>>>>>>>>Detection (BFD) >>>>>>>>>>> Authors : Reshad Rahman >>>>>>>>>>> Lianshu Zheng >>>>>>>>>>> Mahesh Jethanandani >>>>>>>>>>> Santosh Pallagatti >>>>>>>>>>> Greg Mirsky >>>>>>>>>>> Filename : draft-ietf-bfd-yang-06.txt >>>>>>>>>>> Pages : 59 >>>>>>>>>>> Date : 2017-06-30 >>>>>>>>>>> >>>>>>>>>>> Abstract: >>>>>>>>>>> This document defines a YANG data model that can be used to >>>>>>>>>>>configure >>>>>>>>>>> and manage Bidirectional Forwarding Detection (BFD). >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> The IETF datatracker status page for this draft is: >>>>>>>>>>> https://datatracker.ietf.org/doc/draft-ietf-bfd-yang/ >>>>>>>>>>> >>>>>>>>>>> There are also htmlized versions available at: >>>>>>>>>>> https://tools.ietf.org/html/draft-ietf-bfd-yang-06 >>>>>>>>>>> https://datatracker.ietf.org/doc/html/draft-ietf-bfd-yang-06 >>>>>>>>>>> >>>>>>>>>>> A diff from the previous version is available at: >>>>>>>>>>> https://www.ietf.org/rfcdiff?url2=draft-ietf-bfd-yang-06 >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> Please note that it may take a couple of minutes from the time >>>>>>>>>>>of >>>>>>>>>>>submission until the htmlized version and diff are available at >>>>>>>>>>>tools.ietf.org. >>>>>>>>>>> >>>>>>>>>>> Internet-Drafts are also available by anonymous FTP at: >>>>>>>>>>> ftp://ftp.ietf.org/internet-drafts/ >>>>>>>>>> >>>>>>>> >>>>>>> >>>>>> >>>>> >>>> >>> >> >
- I-D Action: draft-ietf-bfd-yang-06.txt internet-drafts
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Jeffrey Haas
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Reshad Rahman (rrahman)
- RE: I-D Action: draft-ietf-bfd-yang-06.txt Yingzhen Qu
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Reshad Rahman (rrahman)
- RE: I-D Action: draft-ietf-bfd-yang-06.txt Yingzhen Qu
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Acee Lindem (acee)
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Reshad Rahman (rrahman)
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Acee Lindem (acee)
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Reshad Rahman (rrahman)
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Acee Lindem (acee)
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Reshad Rahman (rrahman)
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Acee Lindem (acee)
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Reshad Rahman (rrahman)
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Acee Lindem (acee)
- RE: I-D Action: draft-ietf-bfd-yang-06.txt Yingzhen Qu
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Reshad Rahman (rrahman)
- RE: I-D Action: draft-ietf-bfd-yang-06.txt Yingzhen Qu
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Mahesh Jethanandani
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Reshad Rahman (rrahman)
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Mahesh Jethanandani
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Mahesh Jethanandani
- RE: I-D Action: draft-ietf-bfd-yang-06.txt Yingzhen Qu
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Mahesh Jethanandani
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Jeffrey Haas
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Jeffrey Haas
- RE: I-D Action: draft-ietf-bfd-yang-06.txt Yingzhen Qu
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Acee Lindem (acee)
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Acee Lindem (acee)
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Mahesh Jethanandani
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Mahesh Jethanandani
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Mahesh Jethanandani
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Jeffrey Haas
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Ashesh Mishra
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Mahesh Jethanandani
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Jeffrey Haas
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Jeffrey Haas
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Mahesh Jethanandani
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Jeffrey Haas
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Mahesh Jethanandani
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Jeffrey Haas
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Mahesh Jethanandani
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Reshad Rahman (rrahman)
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Jeffrey Haas
- Re: I-D Action: draft-ietf-bfd-yang-06.txt Reshad Rahman (rrahman)
- Re: I-D Action: draft-ietf-bfd-yang-17.txt t petch
- Re: I-D Action: draft-ietf-bfd-yang-17.txt Reshad Rahman (rrahman)
- Re: I-D Action: draft-ietf-bfd-yang-17.txt tom petch
- Re: I-D Action: draft-ietf-bfd-yang-17.txt Reshad Rahman (rrahman)
- Re: I-D Action: draft-ietf-bfd-yang-17.txt tom petch
- Re: I-D Action: draft-ietf-bfd-yang-17.txt tom petch
- Re: I-D Action: draft-ietf-bfd-yang-17.txt Reshad Rahman
- Re: I-D Action: draft-ietf-bfd-yang-17.txt Greg Mirsky