The Linux Manuals (man pages) document is an important part of Linux documents. Linux Manuals are organized as several sections. Each section has a group of commands for a specific area in Linux usage, administration or development.
pedit – generic packet editor action Synopsis tc … action pedit [ex] munge { RAW_OP | LAYERED_OP | EXTENDED_LAYERED_OP } [ CONTROL ] RAW_OP := offset OFFSET { u8 | u16 | u32 } [ AT_SPEC ] CMD_SPEC AT_SPEC := at AT offmask MASK shift SHIFT LAYERED_OP := { ip IPHDR_FIELD | ip BEYOND_IPHDR_FIELD }…
NetEm – Network Emulator Synopsis tc qdisc … dev DEVICE ] add netem OPTIONS OPTIONS := [ LIMIT ] [ DELAY ] [ LOSS ] [ CORRUPT ] [ DUPLICATION ] [ REORDERING ] [ RATE ] [ SLOT ] LIMIT := limit packets DELAY := delay TIME [ JITTER [ CORRELATION ]]] [ distribution…
nat – stateless native address translation action Synopsis tc … action nat DIRECTION OLD NEW DIRECTION := { ingress | egress } OLD := IPV4_ADDR_SPEC NEW := IPV4_ADDR_SPEC IPV4_ADDR_SPEC := { default | any | all | in_addr[/{prefix|netmask}] Description The nat action allows to perform NAT without the overhead of conntrack, which is desirable if…
MQPRIO – Multiqueue Priority Qdisc (Offloaded Hardware QOS) Synopsis tc qdisc … dev dev ( parent classid | root) [ handle major: ] mqprio [ num_tc tcs ] [ map P0 P1 P2… ] [ queues count1 [at] offset1 count2 [at] offset2 … ] [ hw 1|0 ] [ mode dcb|channel] ] [ shaper dcb|…
mpls – mpls manipulation module Synopsis tc … action mpls { POP | PUSH | MODIFY | dec_ttl } [ CONTROL ] POP := pop protocol MPLS_PROTO PUSH := { push | mac_push } [ protocol MPLS_PROTO ] [ tc MPLS_TC ] [ ttl MPLS_TTL ] [ bos MPLS_BOS ] label MPLS_LABEL MODIFY := modify…
mirred – mirror/redirect action Synopsis tc … action mirred DIRECTION ACTION [ index INDEX ] dev DEVICENAME DIRECTION := { ingress | egress } ACTION := { mirror | redirect } Description The mirred action allows packet mirroring (copying) or redirecting (stealing) the packet it receives. Mirroring is what is sometimes referred to as Switch…
matchall – traffic control filter that matches every packet Synopsis tc filter … matchall [ skip_sw | skip_hw ] [ action ACTION_SPEC ] [ classid CLASSID ] Description The matchall filter allows to classify every packet that flows on the port and run a action on it. Options action ACTION_SPEC Apply an action from the…
IFE – encapsulate/decapsulate metadata Synopsis tc … action ife DIRECTION [ ACTION ] [ dst DMAC ] [ src SMAC ] [ type TYPE ] [ CONTROL ] [ index INDEX ] DIRECTION := { decode | encode } ACTION := { allow ATTR | use ATTR value } ATTR := { mark | prio…
HTB – Hierarchy Token Bucket Synopsis tc qdisc … dev dev ( parent classid | root) [ handle major: ] htb [ default minor-id ] [ r2q divisor ] [ offload ] tc class … dev dev parent major:[minor] [ classid major:minor ] htb rate rate [ ceil rate ] burst bytes [ cburst bytes…
HFSC – Hierarchical Fair Service Curve’s control under linux Synopsis tc qdisc add … hfsc [ default CLASSID ] tc class add … hfsc [ [ rt SC ] [ ls SC ] | [ sc SC ] ] [ ul SC ] rt : realtime service curve ls : linkshare service curve sc :…
gate – Stream Gate Action Synopsis tc … action gate [ base-time BASETIME ] [ clockid CLOCKID ] sched-entry <gate state> <interval 1> [ <internal priority> <max octets> ] sched-entry <gate state> <interval 2> [ <internal priority> <max octets> ] sched-entry <gate state> <interval 3> [ <internal priority> <max octets> ]…
fw – fwmark traffic control filter Synopsis tc filter … fw [ classid CLASSID ] [ action ACTION_SPEC ] Description the fw filter allows to classify packets based on a previously set fwmark by iptables. If it is identical to the filter’s handle, the filter matches. iptables allows to mark single packets with the MARK…
FQ-PIE – Flow Queue Proportional Integral controller Enhanced Synopsis tc qdisc … fq_pie [ limit PACKETS ] [ flows NUMBER ] [ target TIME ] [ tupdate TIME ] [ alpha NUMBER ] [ beta NUMBER ] [ quantum BYTES ] [ memory_limit BYTES ] [ ecn_prob PERENTAGE ] [ [no]ecn ] [ [no]bytemode ] [ [no_]dq_rate_estimator ] Description FQ-PIE (Flow Queuing with Proportional Integral controller Enhanced) is a queuing discipline that combines Flow Queuing with the PIE AQM scheme. FQ-PIE uses a Jenkins hash function to…
CoDel – Fair Queuing (FQ) with Controlled Delay (CoDel) Synopsis tc qdisc … fq_codel [ limit PACKETS ] [ flows NUMBER ] [ target TIME ] [ interval TIME ] [ quantum BYTES ] [ ecn | noecn ] [ ce_threshold TIME ] [ memory_limit BYTES ] Description FQ_Codel (Fair Queuing Controlled Delay) is queuing…
FQ – Fair Queue traffic policing Synopsis tc qdisc … fq [ limit PACKETS ] [ flow_limit PACKETS ] [ quantum BYTES ] [ initial_quantum BYTES ] [ maxrate RATE ] [ buckets NUMBER ] [ orphan_mask NUMBER ] [ pacing | nopacing ] [ ce_threshold TIME ] Description FQ (Fair Queue) is a classless…
flower – flow based traffic control filter Synopsis tc filter … flower [ MATCH_LIST ] [ action ACTION_SPEC ] [ classid CLASSID ] [ hw_tc TCID ] MATCH_LIST := [ MATCH_LIST ] MATCH MATCH := { indev ifname | verbose | skip_sw | skip_hw | { dst_mac | src_mac } MASKED_LLADDR | vlan_id VID |…
flow – flow based traffic control filter Synopsis Mapping mode: tc filter … flow map key KEY [ OPS ] [ OPTIONS ] Hashing mode: tc filter … flow hash keys KEY_LIST [ perturb secs ] [ OPTIONS ] OPS := [ OPS ] OP OPTIONS := [ divisor NUM ] [ baseclass ID ]…
ETS – Enhanced Transmission Selection scheduler Synopsis tc qdisc … ets [ bands number ] [ strict number ] [ quanta bytes bytes bytes… ] [ priomap band band band… ] tc class … ets [ quantum bytes ] Description The Enhanced Transmission Selection scheduler is a classful queuing discipline that merges functionality of PRIO…
ETF – Earliest TxTime First (ETF) Qdisc Synopsis tc qdisc … dev dev parent classid [ handle major: ] etf clockid clockid [ delta delta_nsecs ] [ deadline_mode ] [ offload ] Description The ETF (Earliest TxTime First) qdisc allows applications to control the instant when a packet should be dequeued from the traffic control…
ematch – extended matches for use with "basic", "cgroup" or "flow" filters Synopsis tc filter add .. basic match EXPR .. flowid .. EXPR := TERM [ { and | or } EXPR ] TERM := [ not ] { MATCH | ‘(‘ EXPR ‘)’ } MATCH := module ‘(‘ ARGS ‘)’ ARGS := ARG1…