Re: Level of standardization of the Echo mode of BFD [Re: Tsvart last call review of draft-ietf-bfd-vxlan-07]

2019-07-11 Thread Carlos Pignataro (cpignata)
Thank you Greg for following up on this specific point from my comments. Please see inline. On Jul 10, 2019, at 7:42 PM, Greg Mirsky mailto:gregimir...@gmail.com>> wrote: Hi Carlos, apologies for the delayed response. Please find my answers in-line tagged GIM>>. Regards, Greg On Wed, Jul 3, 2

Re: Level of standardization of the Echo mode of BFD [Re: Tsvart last call review of draft-ietf-bfd-vxlan-07]

2019-07-11 Thread Greg Mirsky
Hi Carlos, apologies for the delayed response. Please find my answers in-line tagged GIM>>. Regards, Greg On Wed, Jul 3, 2019 at 9:35 AM Carlos Pignataro (cpignata) < cpign...@cisco.com> wrote: > Hello, Greg, > > Before you asked about RFC 5884, now RFC 5885, neither of which are > references in

Re: Level of standardization of the Echo mode of BFD [Re: Tsvart last call review of draft-ietf-bfd-vxlan-07]

2019-07-03 Thread Carlos Pignataro (cpignata)
Hello, Greg, Before you asked about RFC 5884, now RFC 5885, neither of which are references in draft-ietf-bfd-vxlan-07. Your new request is: > I hope that you can help me to answer a question related to the scope of RFC > 5885. Asking about RFC 5885, published 9 years ago, is another distracti

Re: Tsvart last call review of draft-ietf-bfd-vxlan-07

2019-07-03 Thread Carlos Pignataro (cpignata)
Hi, Jeff, On Jul 1, 2019, at 4:41 PM, Jeffrey Haas mailto:jh...@pfrc.org>> wrote: Carlos, On Jun 19, 2019, at 10:09 PM, Carlos Pignataro (cpignata) mailto:cpign...@cisco.com>> wrote: This packet loop may not be practical for several encapsulations and thus is out of scope for such encapsula

Re: Level of standardization of the Echo mode of BFD [Re: Tsvart last call review of draft-ietf-bfd-vxlan-07]

2019-07-01 Thread Jeffrey Haas
Greg, > On Jun 20, 2019, at 12:50 AM, Greg Mirsky wrote: > > Hello Carlos, > could you please refer me to the specification of BFD that defines the > message format that is used in the Echo mode of BFD. Is it the BFD control > packet? Something else? It is implementation specific. Only the

Re: Tsvart last call review of draft-ietf-bfd-vxlan-07

2019-07-01 Thread Jeffrey Haas
Carlos, > On Jun 19, 2019, at 10:09 PM, Carlos Pignataro (cpignata) > wrote: > >> >> This packet loop may not be practical for several encapsulations and thus is >> out of scope for such encapsulations. Whether this is practical for vxlan >> today, or in the presence of future extensions to

Re: Level of standardization of the Echo mode of BFD [Re: Tsvart last call review of draft-ietf-bfd-vxlan-07]

2019-06-26 Thread Greg Mirsky
Hello Carlos, I hope that you can help me to answer a question related to the scope of RFC 5885. In RFC 5885 is stated: This specification describes procedures only for BFD asynchronous mode. Neither demand mode, nor Echo function of BFD is explicitly mentioned in RFC 5885. Hence my question If

Re: Level of standardization of the Echo mode of BFD [Re: Tsvart last call review of draft-ietf-bfd-vxlan-07]

2019-06-21 Thread Carlos Pignataro (cpignata)
Hello, Greg, Thank you for having split this thread. I’ll note for ease of tracking that this specific issue is issue #4 our of the six quick comments I sent. Now, questions you ask like this one quoted from below: > Would you suggest that the scope of RFC 5884 must include the BFD Echo > funct

Re: Level of standardization of the Echo mode of BFD [Re: Tsvart last call review of draft-ietf-bfd-vxlan-07]

2019-06-20 Thread Carlos Pignataro (cpignata)
Hello, Greg, Yes, happy too answer your question. First, however, let me make two quick observations on the exchange: 1. You seem to be picking very specific fragments or sub-topics from my comments, and following up on those only. 2. I’m happy to continue answering these questions, but t

Re: Level of standardization of the Echo mode of BFD [Re: Tsvart last call review of draft-ietf-bfd-vxlan-07]

2019-06-20 Thread Greg Mirsky
Hi Carlos, thank you for clarifying your opinion on the applicability of the BFD Echo mode. I've split this thread to help us and others to follow the discussion on this particular issue. I'll note that RFC 5880 does not prohibit the remote system to perform any kind of processing on the packet rec

Level of standardization of the Echo mode of BFD [Re: Tsvart last call review of draft-ietf-bfd-vxlan-07]

2019-06-20 Thread Greg Mirsky
Hello Carlos, could you please refer me to the specification of BFD that defines the message format that is used in the Echo mode of BFD. Is it the BFD control packet? Something else? Regards, Greg On Thu, Jun 20, 2019 at 11:09 AM Carlos Pignataro (cpignata) < cpign...@cisco.com> wrote: > Hello

Re: Tsvart last call review of draft-ietf-bfd-vxlan-07

2019-06-19 Thread Carlos Pignataro (cpignata)
Hi, I have not reviewed this draft before, but triggered by this email, and briefly scanning through a couple of sections, it is unclear to me how some of the mechanics work. There are some major issues with the Mac usage and association, as Joel Halpern mentioned in his Rtg Dir review. And,

Re: Tsvart last call review of draft-ietf-bfd-vxlan-07

2019-06-19 Thread Carlos Pignataro (cpignata)
Hello, Greg, Please see inline. On Jun 19, 2019, at 9:58 PM, Greg Mirsky mailto:gregimir...@gmail.com>> wrote: Hello Carlos, thank you for the expedient clarification. To your questions on demultiplexing BFD control packets with the zero value of the Your Discriminator field: * only BFD c

Re: Tsvart last call review of draft-ietf-bfd-vxlan-07

2019-06-19 Thread Greg Mirsky
Hello Carlos, thank you for the expedient clarification. To your questions on demultiplexing BFD control packets with the zero value of the Your Discriminator field: - only BFD control packets with the zero value of the Your Discriminator field are demultiplexed using the information of the

Re: Tsvart last call review of draft-ietf-bfd-vxlan-07

2019-06-19 Thread Carlos Pignataro (cpignata)
Hello, Greg, > On Jun 19, 2019, at 9:09 PM, Greg Mirsky wrote: > > Hi Carlos, > thank you for reminding of our continued discussion with Joel. We are seeking > comments from VXLAN experts and much appreciate if you have insights on VXLAN > to share. > I've got some clarifying questions before

Re: Tsvart last call review of draft-ietf-bfd-vxlan-07

2019-06-19 Thread Greg Mirsky
Hi Carlos, thank you for reminding of our continued discussion with Joel. We are seeking comments from VXLAN experts and much appreciate if you have insights on VXLAN to share. I've got some clarifying questions before I can respond to you. To which stage of the three-way handshake you refer as "in