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TCP Window Scale and SACK Parameters
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Topic: TCP Window Scale and SACK Parameters (Read 7921 times)
mhLearn
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Posts: 10
TCP Window Scale and SACK Parameters
«
on:
Wednesday 06 March 2013, 04:21:21 pm »
Hi,
Aren't both of these parameters to be enabled by default? In version 2.5.1, both were disabled in sysctl.conf.
net.ipv4.tcp_sack = 0
net.ipv4.tcp_timestamps = 0
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.tcp_window_scaling = 0
net.ipv4.tcp_syn_retries = 3
net.ipv4.tcp_synack_retries = 3
Any reason why both were disabled?
In some scenario, incoming tcp packets were distorted, where Window Scale in tcp options where removed and showed "4 NOP" in trace. Anyone can help to explain as I am still new to this? Thanks.
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