Mirja Kühlewind's Discuss on draft-ietf-rtgwg-enterprise-pa-multihoming-08: (with DISCUSS and COMMENT)

Mirja Kühlewind via Datatracker <noreply@ietf.org> Wed, 26 June 2019 15:11 UTC

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Mirja Kühlewind has entered the following ballot position for
draft-ietf-rtgwg-enterprise-pa-multihoming-08: Discuss

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DISCUSS:
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I have a question basically on section 5.3, however, maybe I'm misunderstanding
something or there is an open aspect here: If I have selected one IP address
and then open a TCP connection and during using this TCP connection the
connection to the selected ISP fails, my expected behaviour from a multi-homed
network would have been that my traffic is simply rerouted to the other ISP.
However, all solutions discussed in sec 5.3. assume that the endpoint will
switch its IP address. In case of TCP, which is not migration-capable, as
indicated by the TSV-ART reviewer (Thanks Michael!), this would mean that I
have to open a new TCP connection and start over again. That doesn't see
optimal. Should this be considered?


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COMMENT:
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I was also wondering about the question Alvaro raised in point B. I mean even
if unscoped forwarding is used for internal traffic, this would probably still
prevent spoofing, however, it doesn't seem correctly that unscoped forwarding
table are not needed anymore.

Nit:
Sec 6 s/This document defines a way for network/This document defines a way for
networks/ or
          s/This document defines a way for network/This document defines a way
          for the network/