Wireshark mailing list archives
Re: Window scaling
From: Lee <ler762 () gmail com>
Date: Mon, 6 Jun 2016 19:11:34 -0400
On 6/6/16, Robert Dahlem <Robert.Dahlem () gmx net> wrote:
On 06.06.2016 17:37, ronnie sahlberg wrote:I do not agree with the statement that packets with the SYN bit set are never scaled.The standard is pretty clear for this case.The Window field in a SYN (i.e., a <SYN> or <SYN,ACK>) segment itself is never scaled.Maybe my English is not good enough for the proper definition of "scaled". To clarify this for me: I have a SYN/ACK packet with Window size 8192 and Window scale 8 (multiply by 256): is the client allowed to send 8192 or 2G bytes without seeing the first ACK without SYN from the server?
You're supposed to start out in 'slow start', so unless the MTU is
4KB it's probably allowed to send two packets. See
https://tools.ietf.org/html/rfc5681 3.1. Slow Start and Congestion Avoidance Regards, Lee ___________________________________________________________________________ Sent via: Wireshark-users mailing list <wireshark-users () wireshark org> Archives: https://www.wireshark.org/lists/wireshark-users Unsubscribe: https://wireshark.org/mailman/options/wireshark-users mailto:wireshark-users-request () wireshark org?subject=unsubscribe
Current thread:
- Window scaling Robert Dahlem (Jun 01)
- Re: Window scaling Maynard, Chris (Jun 01)
- Message not available
- Re: Window scaling Jim Aragon (Jun 01)
- Re: Window scaling Robert Dahlem (Jun 06)
- Re: Window scaling ronnie sahlberg (Jun 06)
- Re: Window scaling Robert Dahlem (Jun 06)
- Re: Window scaling ronnie sahlberg (Jun 06)
- Re: Window scaling Lee (Jun 06)
- Message not available
- Re: Window scaling Maynard, Chris (Jun 01)