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Re: [quicwg/base-drafts] Updated ICMP PMTU section (#1412)

Igor Lubashev <notifications@github.com> Mon, 18 June 2018 21:54 UTC

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Subject: Re: [quicwg/base-drafts] Updated ICMP PMTU section (#1412)
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igorlord commented on this pull request.



>  
-### Special Considerations for Packetization Layer PMTU Discovery
+#### ICMP PTB During Handshake  {#icmp-ptb-during-handshake}
+
+It is important that any problems are detected quickly during the connection
+handshake, because the client may be able to mitigate them by switching to
+alternative IP addresses or protocols.  Hence, an endpoint SHOULD reduce Path

Yes, this would need to be reconfirmed.  I do believe that we should encourage implementations to use the best available signal, including ICMP, especially when we have reasons to trust it.  Performance is important for QUIC, and it is double-important for handshake, and ICMP works much faster than PLPMTUD.

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