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Re: [bess] bess: draft-zzhang-bess-mvpn-msdp-sa-interoperation

Leonard Giuliano <lenny@juniper.net> Wed, 22 November 2017 23:10 UTC

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Date: Wed, 22 Nov 2017 14:38:09 -0800
From: Leonard Giuliano <lenny@juniper.net>
To: Toerless Eckert <tte+ietf@cs.fau.de>
CC: bess@ietf.org, MBONED WG <mboned@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/bess/QclyT33caenIgWv1-W54jWAOiTw>
Subject: Re: [bess] bess: draft-zzhang-bess-mvpn-msdp-sa-interoperation
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Toerless,

Thanks for the comments.  After thinking about your feedback on RFC4610 a 
bit, I'm not sure that case is applicable here.  Consider the 2 directions 
of interworking:

1) MSDP SA/AnycastRP_PIM_Register -> MVPN SA

2) MVPN SA -> MSDP SA/AnycastRP_PIM_Register

As I understand, #1 is already covered by RFC6513/6514.  #2 is the missing 
piece that this draft attempts to address.  I don't believe #2 will be 
applicable for RFC4610, as these registers only go to members of the RP 
set.  And the RP set should be configured on all the C-RPs.  It wouldn't 
make much sense to have these registers transit the MVPN domain to go to 
an AnycastRP not in the configured RP set.

Hope this is clear, and let me know if I'm missing anything.

-Lenny

| -----Original Message-----
| From: BESS [mailto:bess-bounces@ietf.org] On Behalf Of Toerless Eckert
| Sent: Monday, November 13, 2017 9:43 PM
| To: bess@ietf.org
| Cc: mboned@ietf.org
| Subject: [bess] bess: draft-zzhang-bess-mvpn-msdp-sa-interoperation
| 
| Jeffrey presented subject draft in mboned. Given how i am
| not usually tracking BESS WG mailing list and may not be around:
| 
| I would like to see subject draft to be adopted as a WG document in BESS
| and become an update to RFC6514 (not to say bugfix ;-).
| 
| Feeedback detail: The draft should be amended to fix the same problem not only for
| MSDP SA but also RFC4610 and probably accordingly change the draft name.
| 
| Cross-posted to mboned (sorry) because there where a couple of MBoned
| participants expressing support for the draft in BESS and may like me not
| be BESS regulars.
| 
| Cheers
|     Toerless

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