1 .TH TC 8 "August 2011" "iproute2" "Linux"
3 choke \- choose and keep scheduler
16 .B [ ecn ] [ bandwidth
23 CHOKe (CHOose and Keep for responsive flows, CHOose and Kill for unresponsive flows)
24 is a classless qdisc designed to both identify and penalize flows that monopolize the
25 queue. CHOKe is a variation of RED, and the configuration is the same as RED.
28 Once the queue hits a certain average length, a random packet is drawn from the
29 queue. If both the to-be-queued and the drawn packet belong to the same flow,
30 both packets are dropped. Otherwise, if the queue length is still below the maximum length,
31 the new packet has a configurable chance of being marked (which may mean dropped).
32 If the queue length exceeds
34 , the new packet will always be marked (or dropped).
35 If the queue length exceeds
37 , the new packet is always dropped.
39 The marking probability computation is the same as used by the RED qdisc.
42 The parameters are the same as for RED, see
49 R. Pan, B. Prabhakar, and K. Psounis, "CHOKe, A Stateless
50 Active Queue Management Scheme for Approximating Fair Bandwidth Allocation",
54 A. Tang, J. Wang, S. Low, "Understanding CHOKe: Throughput and Spatial
55 Characteristics", IEEE/ACM Transactions on Networking, 2004
62 sched_choke was contributed by Stephen Hemminger.