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[tcpm] Comments on draft-bagnulo-tcpm-esn

"Eggert, Lars" <lars@netapp.com> Tue, 21 November 2017 15:24 UTC

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From: "Eggert, Lars" <lars@netapp.com>
To: "tcpm@ietf.org" <tcpm@ietf.org>
Thread-Topic: Comments on draft-bagnulo-tcpm-esn
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Date: Tue, 21 Nov 2017 15:23:35 +0000
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Subject: [tcpm] Comments on draft-bagnulo-tcpm-esn
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Hi,

after my half-baked idea during the Singapore session (i.e., WS option 15 means "multiply by 64 or other large value), here's another one, even less baked:

Make WS option 15 mean "no flow control".

If you're doing >100G/s for a single flow, you're very unlikely to still rely on flow control to protect you from being overrun. Your problem is likely the exact opposite, i.e., making sure that there are no local bottlenecks that would prevent you from reaching that level of throughput. Plus, the number of slots in your NIC ring is probably already enforcing some sort of FC on you...

Lars

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