Man page - tc-cgroup(8)
Packages contas this manual
- tc-basic(8)
- ip-l2tp(8)
- tc-hfsc(8)
- vdpa-mgmtdev(8)
- devlink(8)
- devlink-sb(8)
- tipc(8)
- rdma(8)
- devlink-lc(8)
- ip-address(8)
- tc-cgroup(8)
- tipc-socket(8)
- lnstat(8)
- tipc-peer(8)
- tc-vlan(8)
- tc-skbprio(8)
- ip-mptcp(8)
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- ip-maddress(8)
- tc-prio(8)
- libnetlink(3)
- ip-neighbour(8)
- tc-route(8)
- dcb-rewr(8)
- tc-ematch(8)
- ip-route(8)
- routel(8)
- devlink-dev(8)
- ip-nexthop(8)
- rdma-resource(8)
- ss(8)
- tc-fw(8)
- ip-xfrm(8)
- tc-etf(8)
- tc-skbedit(8)
- tc-gate(8)
- ip-ioam(8)
- tc-connmark(8)
- tc-sample(8)
- ip-monitor(8)
- tc-flower(8)
- tc-pedit(8)
- ip-stats(8)
- tipc-node(8)
- rtacct(8)
- dcb-maxrate(8)
- tc-drr(8)
- tc-red(8)
- dcb-app(8)
- tipc-bearer(8)
- ip-sr(8)
- tc-fq_codel(8)
- tc-police(8)
- tc-netem(8)
- tc-bpf(8)
- dcb-ets(8)
- devlink-monitor(8)
- tc-codel(8)
- tc-choke(8)
- dcb-apptrust(8)
- tc-sfb(8)
- devlink-port(8)
- tc-flow(8)
- vdpa-dev(8)
- tc-tunnel_key(8)
- ip-rule(8)
- devlink-rate(8)
- tc-ets(8)
- tipc-media(8)
- tc-matchall(8)
- dcb-pfc(8)
- rdma-link(8)
- tc-skbmod(8)
- tc-ct(8)
- tc-ife(8)
- ctstat(8)
- ip-netns(8)
- devlink-trap(8)
- tc-hfsc(7)
- ip-token(8)
- ip-link(8)
- rdma-statistic(8)
- bridge(8)
- dcb-buffer(8)
- devlink-resource(8)
- tc-u32(8)
- tc-stab(8)
- vdpa(8)
- devlink-health(8)
- ip-addrlabel(8)
- ip-netconf(8)
- devlink-region(8)
- tc-simple(8)
- tc-bfifo(8)
- tc-ctinfo(8)
- ip-tcp_metrics(8)
- tc-gact(8)
- rdma-system(8)
- devlink-dpipe(8)
- tc-actions(8)
- ip-macsec(8)
- tc(8)
- genl(8)
- nstat(8)
- tc-sfq(8)
- dcb-dcbx(8)
- arpd(8)
- tc-htb(8)
- tc-mpls(8)
- tc-nat(8)
- ip-gue(8)
- rdma-monitor(8)
- rtstat(8)
- tc-mirred(8)
- tc-taprio(8)
- rdma-dev(8)
- tc-tbf(8)
- tc-pfifo_fast(8)
- ip-ntable(8)
- tc-csum(8)
- tc-mqprio(8)
- rtmon(8)
- tc-fq_pie(8)
- tc-fq(8)
- ip-vrf(8)
- ip-mroute(8)
- tc-pfifo(8)
- tc-cake(8)
- tc-cbs(8)
- ip(8)
- tipc-nametable(8)
- ip-tunnel(8)
- ip-fou(8)
- tipc-link(8)
apt-get install iproute2
Manual
| Cgroup classifier in tc(8) | Linux | Cgroup classifier in tc(8) |
NAME
cgroup - control group based traffic control filter
SYNOPSIS
tc filter ... cgroup [ match EMATCH_TREE ] [ action ACTION_SPEC ]
DESCRIPTION
This filter serves as a hint to tc that the assigned class ID of the net_cls control group the process the packet originates from belongs to should be used for classification. Obviously, it is useful for locally generated packets only.
OPTIONS
- action ACTION_SPEC
- Apply an action from the generic actions framework on matching packets.
- match EMATCH_TREE
- Match packets using the extended match infrastructure. See tc-ematch(8) for a detailed description of the allowed syntax in EMATCH_TREE.
EXAMPLES
In order to use this filter, a net_cls control group has to be created first and class as well as process ID(s) assigned to it. The following creates a net_cls cgroup named "foobar":
modprobe cls_cgroup mkdir /sys/fs/cgroup/net_cls mount -t cgroup -onet_cls net_cls /sys/fs/cgroup/net_cls mkdir /sys/fs/cgroup/net_cls/foobar
To assign a class ID to the created cgroup, a file named net_cls.classid has to be created which contains the class ID to be assigned as a hexadecimal, 64bit wide number. The upper 32bits are reserved for the major handle, the remaining hold the minor. So a class ID of e.g. ff:be has to be written like so: 0xff00be (leading zeroes may be omitted). To continue the above example, the following assigns class ID 1:2 to foobar cgroup:
echo 0x10002 > /sys/fs/cgroup/net_cls/foobar/net_cls.classid
Finally some PIDs can be assigned to the given cgroup:
echo 1234 > /sys/fs/cgroup/net_cls/foobar/tasks echo 5678 > /sys/fs/cgroup/net_cls/foobar/tasks
Now by simply attaching a cgroup filter to a qdisc makes packets from PIDs 1234 and 5678 be pushed into class 1:2.
SEE ALSO
tc(8), tc-ematch(8),
the file Documentation/cgroups/net_cls.txt of the Linux kernel tree
| 21 Oct 2015 | iproute2 |