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NAME | SYNOPSIS | DESCRIPTION | ALGORITHM | PARAMETERS | SOURCE | SEE ALSO | AUTHOR | COLOPHON |
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TC(8) Linux TC(8)
choke - choose and keep scheduler
tc qdisc ... choke limit packets min packets max packets avpkt
bytes burst packets [ ecn ] [ bandwidth rate ] probability chance
CHOKe (CHOose and Keep for responsive flows, CHOose and Kill for
unresponsive flows) is a classless qdisc designed to both
identify and penalize flows that monopolize the queue. CHOKe is a
variation of RED, and the configuration is similar to RED.
Once the queue hits a certain average length, a random packet is
drawn from the queue. If both the to-be-queued and the drawn
packet belong to the same flow, both packets are dropped.
Otherwise, if the queue length is still below the maximum length,
the new packet has a configurable chance of being marked (which
may mean dropped). If the queue length exceeds max, the new
packet will always be marked (or dropped). If the queue length
exceeds limit, the new packet is always dropped.
The marking probability computation is the same as used by the
RED qdisc.
The parameters are the same as for RED, except that RED uses
bytes whereas choke counts packets. See tc-red(8) for a
description.
o R. Pan, B. Prabhakar, and K. Psounis, "CHOKe, A Stateless
Active Queue Management Scheme for Approximating Fair
Bandwidth Allocation", IEEE INFOCOM, 2000.
o A. Tang, J. Wang, S. Low, "Understanding CHOKe: Throughput
and Spatial Characteristics", IEEE/ACM Transactions on
Networking, 2004
tc(8), tc-red(8)
sched_choke was contributed by Stephen Hemminger.
This page is part of the iproute2 (utilities for controlling
TCP/IP networking and traffic) project. Information about the
project can be found at
⟨http://www.linuxfoundation.org/collaborate/workgroups/networking/iproute2⟩.
If you have a bug report for this manual page, send it to
netdev@vger.kernel.org, shemminger@osdl.org. This page was
obtained from the project's upstream Git repository
⟨https://git.kernel.org/pub/scm/network/iproute2/iproute2.git⟩ on
2024-06-14. (At that time, the date of the most recent commit
that was found in the repository was 2024-06-11.) If you
discover any rendering problems in this HTML version of the page,
or you believe there is a better or more up-to-date source for
the page, or you have corrections or improvements to the
information in this COLOPHON (which is not part of the original
manual page), send a mail to man-pages@man7.org
iproute2 August 2011 TC(8)
Pages that refer to this page: tc(8), tc-red(8)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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