Hi Brian,

Thanks for the information, I will consider and note it in the '-04' version.

BR/Xun

-----Original Message-----
From: Anima <[email protected]> On Behalf Of Brian E Carpenter
Sent: Tuesday, 27 July 2021 00:29
To: Anima WG <[email protected]>
Subject: [Anima] Bulk transfer in draft-ietf-anima-grasp-distribution-03

Recently I rediscovered something that we included in RFC 8990:

"2.8.3. Message Size

GRASP nodes MUST be able to receive unicast messages of at least 
GRASP_DEF_MAX_SIZE bytes. GRASP nodes MUST NOT send unicast messages longer 
than GRASP_DEF_MAX_SIZE bytes unless a longer size is explicitly allowed for 
the objective concerned. For example, GRASP negotiation itself could be used to 
agree on a longer message size."

In other words, the method of bulk transfer described in 
draft-ietf-anima-grasp-distribution at Section 4.3 "Bulk Information Transfer" 
could be improved by first negotiating a larger message size than the default 
2048 bytes. That might improve efficiency for distributing large files. (All it 
really changes in a GRASP implementation over TLS or TCP is the buffer sized 
set in two or three socket recv() calls.)

Regards
   Brian

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