tcp_cwnd_normal Parameter

Description

One of three variables for the congestion window burst throttle, along side tcp_cwnd_infinite and tcp_cwnd_ss that together manage packet transfers in cases of congestion.

To prevent performance degradation from transfer congestion, change the parameter's value in a file in the /etc/system.d directory as follows:

# echo "set ip:tcp_cwnd_normal=0xFF" >> /etc/system.d/site:filename
# reboot

where site:filename refers to the file that contains the new parameter setting (0xFF). The new setting will be read from /etc/system.d/file into the /etc/system file during the reboot. The naming convention site:filename enables you to identify the file and the change that you implemented on the parameter. For more information about using files in /etc/system.d, see /etc/system.d/ Directory Files.

For more information about the congestion window, refer to RFC 2581 and RFC 3390.

Default

16

Range

1-65535

Dynamic?

Yes

When to Change

See Description

Commitment Level

Unstable