[Idr] Questions about draft-hcl-idr-extend-tunnel-egress-point

[Linda Dunbar <[e-mail]>]

PengFei,

I have some questions about your draft-hcl-idr-extend-tunnel-egress-point-00 requesting to expend the Tunnel Egress point.

  *   Is the Tunnel Egress point same as the Tunnel End Point described in RFC9012?
The Tunnel Egress Endpoint of RFC9012 is a SubTLV inside the Tunnel Encapsulation Attribute, which is an IPv4 or IPv6 address of the Egress Endpoint.
Your draft seems to ask for a new Tunnel Type to the Tunnel Encapsulation Attribute.
It would be less confusing if you use a different name. From the attributes described in your draft, this new tunnel type is to list a list of SysPorts for the tunnel.
Is it more like asking a Tunnel Type to indicate that there are multiple egress ports?  Maybe  “Multi-egress-ports” Tunnel Type is a more accurate name?


  *   If you do want to have a tunnel with multiple egress ports, like P2MP (point to multipoint tunnel),  then it makes more sense to consider using Multicast protocol to allow each individual port to “JOIN” or “LEAVE” the p2MP tunnel.


I copied the IDR mailing list. Any extension to BGP needs to be discussed in IDR WG.

Thanks, Linda

From: linchangwang <[e-mail]>
Sent: Monday, July 1, 2024 6:03 AM
To: [e-mail]
Cc: [e-mail]
Subject: [aidc] Fw: [Idr] [RTGWG & IDR] Discussing the Open Scheduled fabric of AI Network



发件人: 霍朋飞 <huopengfei=[e-mail]<mailto:huopengfei=[e-mail]>>
发送时间: 2024年6月30日 12:57
收件人: [e-mail]<mailto:[e-mail]>; [e-mail]<mailto:[e-mail]>
主题: [Idr] [RTGWG & IDR] Discussing the Open Scheduled fabric of AI Network

Hi Wg,

Link:
https://datatracker.ietf.org/doc/html/draft-hcl-rtgwg-ai-network-problem-00
https://datatracker.ietf.org/doc/html/draft-hcl-rtgwg-osf-framework-00
https://datatracker.ietf.org/doc/html/draft-hcl-idr-extend-tunnel-egress-point-00

These documents describe the main disturbances caused by AI applications to the network and propose solutions based on open schedulable network architecture developed to address these issues.
It primarily focuses on the following aspects:

1. Open Scheduled Fabric
  An open network architecture that resolves hash issues through dynamic scheduling based on network measurements.

2. Bgp Extension for Tunnel Egress Point
  A method for implementing the OSF network architecture involves using BGP uniformly in the control plane, extending the data plane as a new tunnel encapsulation, and providing the necessary control information transmission for the data plane.

3. Extending the BGP protocol to carry Tunnel Egress Point information within the community attribute.

We welcome any comments and discussions.

Thank you!

Thanks,
Pengfei
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