Re: I-D Action: draft-ietf-bfd-yang-06.txt
"Reshad Rahman (rrahman)" <rrahman@cisco.com> Fri, 28 July 2017 16:28 UTC
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From: "Reshad Rahman (rrahman)" <rrahman@cisco.com>
To: Yingzhen Qu <yingzhen.qu@huawei.com>, "Acee Lindem (acee)" <acee@cisco.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 16:28:46 +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> <D5A0AFE7.2CF6C3%rrahman@cisco.com> <D5A0D683.BA6A6%acee@cisco.com> <594D005A3CB0724DB547CF3E9A9E810B53867F@dfweml501-mbx>
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Thanks Yingzhen. FYI I will be on holiday for the next 2 weeks. Acee, can you please get in touch with ISIS YANG authors? Regards, Reshad. On 2017-07-28, 12:25 PM, "Yingzhen Qu" <yingzhen.qu@huawei.com> wrote: >Hi Reshad, > >Thanks for the update and example. I'll get ospf part done this weekend. > >Thanks, >Yingzhen > >-----Original Message----- >From: Acee Lindem (acee) [mailto:acee@cisco.com] >Sent: Friday, July 28, 2017 8:56 AM >To: Reshad Rahman (rrahman) <rrahman@cisco.com>; Yingzhen Qu ><yingzhen.qu@huawei.com>; 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 > >Thanks much Reshad - Yingzhen will be adding but the ietf-ospf-bfd module >to the OSPF model and draft. > >Acee > >On 7/28/17, 11:08 AM, "Reshad Rahman (rrahman)" <rrahman@cisco.com> wrote: > >>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 >>>>-bf >>>>d >>>>- >>>>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/iet >>>>>f-b >>>>>f >>>>>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/ >>>>>>>>>>i >>>>>>>>>>e >>>>>>>>>>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