Subject: [IPFIX] Question about tcpSequenceNumber, tcpAcknowledgementNumber, tcpUrgentPointer, tcpWindowSize

From: Hitoshi Irino <[email-masked]>
Date: Fri, 01 Dec 2006 19:00:56 +0900

Dear Jurgen, and all

I have a question about some IEs relate TCP, tcpSequenceNumber, 
tcpAcknowledgeNumber, tcpUrgentPointer, tcpWindowSize.
How do an exporter decide these values?
Exporter has several choices: first packet of TCP flow or last packet of 
TCP flow etc...
Are these values a difference between value of first packet and value of 
last packet(, or minimum and maximum)?

The descriptions of these IEs in IPFIX-INFO-14 do not provide these 
Information.
It is better to provide more description about value, I think.

regards,
Hitoshi Irino

-- 
Hitoshi Irino
NTT Network Service Systems Laboratories
9-11 Midori-cho 3-Chome, Musashino-shi, Tokyo 180-8585 Japan
Tel: +81-422-59-4403  Fax: +81-422-59-4549

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