Re: [mpls] nits and question on draft-ietf-mpls-spring-lsp-ping-02

"Nagendra Kumar Nainar (naikumar)" <naikumar@cisco.com> Sun, 12 February 2017 22:04 UTC

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From: "Nagendra Kumar Nainar (naikumar)" <naikumar@cisco.com>
To: Loa Andersson <loa@pi.nu>, "Carlos Pignataro (cpignata)" <cpignata@cisco.com>, "Acee Lindem (acee)" <acee@cisco.com>
Thread-Topic: [mpls] nits and question on draft-ietf-mpls-spring-lsp-ping-02
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Date: Sun, 12 Feb 2017 22:04:16 +0000
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References: <D4C4B5FD.9C23E%acee@cisco.com> <D713341E-F21A-4632-BB1D-0880FF36C9EF@cisco.com> <D4C4C7FA.9C253%acee@cisco.com> <A9C6442D-12AA-4CD8-9F9C-76B0CBF42AC5@cisco.com> <D4C4F29D.9C26B%acee@cisco.com> <AE1C8AAB-40E8-4457-A739-20A1231F0839@cisco.com> <f31f6a9f-48e7-40b8-1657-7112160cf9f9@pi.nu>
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Cc: "mpls@ietf.org" <mpls@ietf.org>, "mpls-chairs@ietf.org" <mpls-chairs@ietf.org>, "draft-ietf-mpls-spring-lsp-ping@ietf.org" <draft-ietf-mpls-spring-lsp-ping@ietf.org>
Subject: Re: [mpls] nits and question on draft-ietf-mpls-spring-lsp-ping-02
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Loa,

Sorry about the delayed response. We will update the same in the next
revision.

Thanks,
Nagendra

On 2/11/17, 10:00 PM, "Loa Andersson" <loa@pi.nu> wrote:

>Carlos and Acee,
>
>OK - I agree.
>
>Authors,
>
>can you update the document with the other changes discussed?
>
>/Loa
>
>/Loa
>
>On 2017-02-12 06:25, Carlos Pignataro (cpignata) wrote:
>> I agree, Acee.
>>
>>
>>
>> *From: *"Acee Lindem (acee)" <acee@cisco.com>
>> *Date: *Saturday, February 11, 2017 at 4:59 PM
>> *To: *Carlos Pignataro <cpignata@cisco.com>
>> *Cc: *Loa Andersson <loa@pi.nu>nu>, "mpls@ietf.org" <mpls@ietf.org>rg>,
>> "mpls-chairs@ietf.org" <mpls-chairs@ietf.org>rg>,
>> "draft-ietf-mpls-spring-lsp-ping@ietf.org"
>> <draft-ietf-mpls-spring-lsp-ping@ietf.org>
>> *Subject: *Re: [mpls] nits and question on
>> draft-ietf-mpls-spring-lsp-ping-02
>>
>>
>>
>> Hi Carlos,
>>
>>
>>
>> *From: *"Carlos Pignataro (cpignata)" <cpignata@cisco.com
>> <mailto:cpignata@cisco.com>>
>> *Date: *Saturday, February 11, 2017 at 2:16 PM
>> *To: *Acee Lindem <acee@cisco.com <mailto:acee@cisco.com>>
>> *Cc: *Loa Andersson <loa@pi.nu <mailto:loa@pi.nu>>, "mpls@ietf.org
>> <mailto:mpls@ietf.org>" <mpls@ietf.org <mailto:mpls@ietf.org>>,
>> "mpls-chairs@ietf.org <mailto:mpls-chairs@ietf.org>"
>> <mpls-chairs@ietf.org <mailto:mpls-chairs@ietf.org>>,
>> "draft-ietf-mpls-spring-lsp-ping@ietf.org
>> <mailto:draft-ietf-mpls-spring-lsp-ping@ietf.org>"
>> <draft-ietf-mpls-spring-lsp-ping@ietf.org
>> <mailto:draft-ietf-mpls-spring-lsp-ping@ietf.org>>
>> *Subject: *Re: [mpls] nits and question on
>> draft-ietf-mpls-spring-lsp-ping-02
>>
>>
>>
>>     Hi Acee,
>>
>>
>>
>>         On Feb 11, 2017, at 2:02 PM, Acee Lindem (acee) <acee@cisco.com
>>         <mailto:acee@cisco.com>> wrote:
>>
>>
>>
>>         Hi Carlos,
>>
>>
>>
>>         I guess I commented without knowing the context of the comment
>>         ;^) See inline.
>>
>>
>>
>>         *From: *"Carlos Pignataro (cpignata)" <cpignata@cisco.com
>>         <mailto:cpignata@cisco.com>>
>>         *Date: *Saturday, February 11, 2017 at 1:29 PM
>>         *To: *Acee Lindem <acee@cisco.com <mailto:acee@cisco.com>>
>>         *Cc: *Loa Andersson <loa@pi.nu <mailto:loa@pi.nu>>,
>>         "mpls@ietf.org <mailto:mpls@ietf.org>" <mpls@ietf.org
>>         <mailto:mpls@ietf.org>>, "mpls-chairs@ietf.org
>>         <mailto:mpls-chairs@ietf.org>" <mpls-chairs@ietf.org
>>         <mailto:mpls-chairs@ietf.org>>,
>>         "draft-ietf-mpls-spring-lsp-ping@ietf.org
>>         <mailto:draft-ietf-mpls-spring-lsp-ping@ietf.org>"
>>         <draft-ietf-mpls-spring-lsp-ping@ietf.org
>>         <mailto:draft-ietf-mpls-spring-lsp-ping@ietf.org>>
>>         *Subject: *Re: [mpls] nits and question on
>>         draft-ietf-mpls-spring-lsp-ping-02
>>
>>
>>
>>             Hi, Acee,
>>
>>                 On Feb 11, 2017, at 12:40 PM, Acee Lindem (acee)
>>                 <acee@cisco.com <mailto:acee@cisco.com>> wrote:
>>
>>
>>
>>                         And a last question, should BGP-LS be in that
>>                         registry?
>>
>>
>>                     I guess no until someone needs it?
>>
>>
>>                 BGP-LS has its own set of registries.
>>
>>
>>
>>             Thanks. Yes. The question is whether to have a BGP-LS value
>>             for the MPLS LSP Ping DDMAP
>>             protocol:
>>https://tools.ietf.org/html/draft-ietf-mpls-spring-lsp-ping-02#section-6
>>
>>
>>
>>         In that case, it might make sense to add a code point for BGP-LS
>>         since it is the only way to advertise the SIDs (i.e, labels when
>>         MPLS SR is the data plane) for BGP EPE as described
>>         in https://www.ietf.org/id/draft-ietf-idr-bgp-prefix-sid-04.txt.
>>         However, one could argue that specifying BGP would suffice since
>>         unless you are going to specify other BGP Address Families
>>         (AFI/SAFI tuples) as individual protocols.
>>
>>
>>
>>
>>
>>     That¹s exactly the question ‹ use the BGP protocol or define a new
>>     BGP-LS?
>>
>>
>>
>>     To me though, until someone sits down to do the BGP EPE LSP Ping
>>     analysis, we should not assume one way or another.
>>
>>
>>
>> I¹d vote to just use BGP rather than setting the precedent of a separate
>> protocol ID for an AFI/SAFI ­ are we going to have a protocol ID for BGP
>> L3VPN or BGP EVPN? I guess the question is, from an OAM perspective, how
>> is the DDMAP protocol going to be used?
>>
>>
>>
>> Thanks,
>>
>> Acee
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>     Thanks,
>>
>>
>>
>>     Carlos.
>>
>>
>>
>>         Thanks,
>>
>>         Acee
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>             Thanks,
>>
>>
>>
>>             Carlos.
>>
>>
>>
>
>-- 
>
>
>Loa Andersson                        email: loa@mail01.huawei.com
>Senior MPLS Expert                          loa@pi.nu
>Huawei Technologies (consultant)     phone: +46 739 81 21 64