js si wrote:
hi
i tried the example given on the examples page to
duplicate selected traffic like
tc qdisc add dev eth0 root handle 1: prio
tc qdisc add dev eth0 parent 1:3 handle 3: netem
duplicate 40%
tc filter add dev eth0 protocol ip parent 1:0 prio 3
u32 match ip dst 11.0.2.2 flowid 1:3
when i ping from 11.0.2.2 to this interface my machine
hangs. the same thing works for drop or delay.
i would appreciate if someone can tell me what i am
doing wrong.
Using netem with an upper qdisc screws up the upper qdisc's
q.qlen counter and qdisc_run() tries to dequeue it indefinitely.
I don't know whether netem is intended to be useable only as
top-level qdisc, if so it should make sure that it really is
used this way to avoid hanging the system.
Regards
Patrick
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