[Idr] Early Questions for the draft-ietf-idr-mpbgp-extension-4map6

Susan Hares <shares@ndzh.com> Sun, 17 March 2024 23:06 UTC

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From: Susan Hares <shares@ndzh.com>
To: "idr@ietf.org" <idr@ietf.org>
Thread-Topic: Early Questions for the draft-ietf-idr-mpbgp-extension-4map6
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Date: Sun, 17 Mar 2024 23:06:15 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/idr/yzWP78aA6o1x8mwOCG1BUoDrG2E>
Subject: [Idr] Early Questions for the draft-ietf-idr-mpbgp-extension-4map6
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Chongfeng:

I have a few questions on the tunnel encapsulation section:


  1.  Have you considered putting the fields on page 7 - into the SubTLV type for the tunnel type "4map6" ?
  2.  What type of validation do you need for the node sourcing this information?

One way to secure the information is to validate the tunnel egress ending point.





Here's the diagram:



Peer-1 on Edge (sends update)      BGP Peer 2 (edge)

Originate the (mapping) ----------- receive Update [

[Edge 2] [unmap ]                            receives mapping [Edge 1]



Why do you not want to use the Egress Tunnel Endpoint to validate that you have

Peer 2 has a connection to the egress Peer.

I hope these questions help you to prepare for the IDR meeting today.

Sue