Subject: [nvo3] One comment for draft-dt-nvo3-encap-01

From: "lizho.jin" <[email-masked]>
Date: Thu, 4 May 2017 00:24:43 +0800

Hi authors,

One comment for the section 7 "Design team recommendations":

2. Geneve has the total options length that allow skipping over the
options for NIC offload operations, and will allow transit devices to
view flow information in the inner payload.

[Lizhong] Total option length will not solve the parser buffer issue. The parser buffer is located before parser, and for Geneve, implement 512Byte is the only way since the longest of Geneve header is 260Bytes. At least in some implementations as I know, hardware will firstly receive enough 512Bytes per packets, and send the 512Bytes to parser. Then parse will be able to skip over options to get inner payload. Did I have any misunderstanding?

Regards

Lizhong