Re: [CCAMP] [Teas] Enhanced VPN discussions in various WGs

David Sinicrope <david.sinicrope@ericsson.com> Wed, 13 November 2019 13:59 UTC

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From: David Sinicrope <david.sinicrope@ericsson.com>
To: "adrian@olddog.co.uk" <adrian@olddog.co.uk>, "teas@ietf.org" <teas@ietf.org>
CC: "'ccamp@ietf. org'" <ccamp@ietf.org>
Thread-Topic: [Teas] Enhanced VPN discussions in various WGs
Thread-Index: AdWZ8fL6e34ke91DSr6B2EObbFdAKAAQQjEA
Date: Wed, 13 Nov 2019 13:59:45 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ccamp/YEBK7WQ_H01LjklHBWKBxwsaCsI>
Subject: Re: [CCAMP] [Teas] Enhanced VPN discussions in various WGs
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Hi Adrian,
Thanks for providing the cross reference, this is very useful.

How is the VPN+ work below related to GMPLS Routing and Signaling Framework for Flexible Ethernet (FlexE) draft-izh-ccamp-flexe-fwk-07?
There are some serious concerns with the draft above and exposure of FlexE constructs that OIF FlexE notes should not be exposed. 
e.g., FlexE Group, FlexE Channel
OIF FlexE indicates that it should present to the upper layer as Ethernet with no indication of FlexE in the dataplane i.e., it looks like any other Ethernet interface (with perhaps enhanced QoS capabilities.)

I see what looks to be exposure of similar FlexE constructs in the TEAS draft and other drafts. (e.g., FlexE Channels)

It would be good for these drafts to align with OIF specification of FlexE such that these constructs remain transparent and thereby ensuring they are leveraging what OIF specified and not variants.  i.e., present an Ethernet interface to the upper layer vs exposing FlexE constructs OIF says remain transparent. One exception to this would of course be the management and FlexE models which would be required to configure the FlexE links.  These of course should be liaised to OIF with an invite for that community to review and comment the work ongoing in IETF (CCAMP).

Thanks,
Dave


-----Original Message-----
From: Teas <teas-bounces@ietf.org>; on behalf of "Adrian uk>" <adrian@olddog.co.uk>;
Organization: Old Dog Consulting
Reply-To: "Adrian uk>" <adrian@olddog.co.uk>;
Date: Wednesday, November 13, 2019 at 8:28 AM
To: TEAS WG <teas@ietf.org>;
Subject: [Teas] Enhanced VPN discussions in various WGs

    Hi,
    
    TEAS is the home of draft-ietf-teas-enhanced-vpn, and that provides an
    anchor for a lot of VPN+ work going on across the IETF in Singapore.
    
    It is worth a heads-up on this to help you track what is going on and pull
    together the pieces in case you are interested in this approach to network
    slicing. Apologies if I have missed anything.
    
    TEAS
    - A Framework for Enhanced Virtual Private Networks (VPN+) Service 
       draft-ietf-teas-enhanced-vpn-01
    - Control plane considerations of enhanced VPN
       draft-dong-teas-enhanced-vpn-control-plane-00
    
    LSR
    - IGP Extensions for Segment Routing Based Enhanced VPN 
      draft-dong-lsr-sr-enhanced-vpn
    
    BESS
    - BGP-LS Filters: A Framework for Network Slicing and Enhanced VPNs
      draft-drake-bess-enhanced-vpn
    
    SPRING
    - Segment Routing for Enhanced VPN Service
      draft-dong-spring-sr-for-enhanced-vpn
    
    I also note draft-dong-idr-bgpls-sr-enhanced-vpn, but don't see it on any
    agendas this time around.
    
    Cheers,
    Adrian
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