[Freeswitch-users] Looking for Linux tc wizard

[Joel Serrano]

Hi Chad,


Jitter & Loss info:

alias jitteron='tc qdisc add dev eth1 root handle 1: netem delay 40ms 20ms
; tc qdisc add dev eth1 parent 1:1 pfifo limit 1000'

alias joff='tc qdisc del dev eth1 root netem'

alias jon='tc qdisc del dev eth1 root netem ; sleep 1; tc qdisc add dev
eth1 root netem delay 200ms reorder 75% gap 1'

alias jon2='tc qdisc del dev eth1 root netem ; sleep 1; tc qdisc add dev
eth1 root netem delay 20ms reorder 10% gap 1'

alias jon3='tc qdisc del dev eth1 root netem ; sleep 1; tc qdisc add dev
eth1 root netem delay 100ms reorder 25% gap 1'

alias jonl='tc qdisc del dev eth1 root netem ; sleep 1; tc qdisc add dev
eth1 root netem loss 15%'

alias jshow='tc qdisc show dev eth1'

alias loss='tc qdisc change dev eth1 root netem loss '


You will have to adapt them to suit your need...

Also, I would have a look at https://freeswitch.org/stash/
projects/FS/repos/freeswitch/browse/support-d/.bashrc

Best,
Joel.

On Fri, Sep 2, 2016 at 4:36 PM, Chad Phillips <chad at apartmentlines.com>
wrote:

> Anybody here a master of the Linux Traffic Control program?
>
> http://lartc.org/manpages/tc.txt
>
> Asking because I have a need for a script that will allow me to simulate
> different types of internet connections (shitty 3G, DSL, wifi, etc), for
> the purposes of quality testing a WebRTC implementation.
>
> I’d like to use tc (and perhaps iptables if that would help) to as closely
> simulate the various conditions (asymmetric bandwidth, packet loss, etc.)
> as possible.
>
> I’m willing to pay for the help, and would be happy to donate the work
> back as open source.
>
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