RE: [LARTC] Priority queuing using tc not working

From: nitin panjwani <tacmpe142@yahoo.com>
To: lartc@vger.kernel.org
Subject: RE: [LARTC] Priority queuing using tc not working
Date: Thu, 24 Oct 2002 06:50:37 +0000	[thread overview]
Message-ID: <marc-lartc-103544228806501@msgid-missing> (raw)
In-Reply-To: <marc-lartc-103498491503790@msgid-missing>

I guess Probably this qdisc alread exist .  Try to
delete it and add it again and see what you are
getting.
Nitin
--- Neil Aggarwal <neil@JAMMConsulting.com> wrote:
> Joseph:
> 
> Based on you comments, I deleted all of the qdiscs
> and 
> then typed these commands:
>         echo 1 > /proc/sys/net/ipv4/ip_forward
> 
>         /sbin/tc qdisc add dev eth0 root handle 1:
> prio
>         /sbin/tc qdisc add dev eth0 parent 1:1
> handle 1:10 sfq
> 
> Immediately on typing this second command, I get
> this output:
> Starting tc: RTNETLINK answers: File exists
> 
> Any ideas why I am getting this?
> 
> Thanks,
> 	Neil.
> 
> --
> Neil Aggarwal
> JAMM Consulting, Inc.    (972) 612-6056,
> http://www.JAMMConsulting.com
> Custom Internet Development    Websites, Ecommerce,
> Java, databases
> 
> 
> > -----Original Message-----
> > From: Joseph Watson [mailto:jtwatson@datakota.com]
> > Sent: Wednesday, October 23, 2002 8:22 PM
> > To: Neil Aggarwal
> > Subject: Re: [LARTC] Priority queuing using tc not
> working
> > 
> > 
> > On Friday 18 October 2002 07:43 pm, Neil Aggarwal
> wrote:
> > > Hello:
> > >
> > > I am trying to set up priority based queue for
> my VOIP traffic.
> > > I am running a RedHat 8.0 machine that is
> masquerading my 
> > internal network
> > > which has my PC and a VOIP phone.  All VOIP
> traffic goes to and from
> > > my PBX, which is at 10.0.0.20.
> > >
> > > When I use my phone and try to download a file
> via FTP on my PC,
> > > all of the packets are going into the low
> priority queue.
> > >
> > > I typed these commands:
> > >   echo 1 > /proc/sys/net/ipv4/ip_forward
> > >
> > >   # Create the priority queue
> > >   /sbin/tc qdisc add dev eth0 root handle 1:
> prio
> > >   /sbin/tc qdisc add dev eth0 parent 1:1 handle
> 10: sfq
> >                                                   
>                   ^^^
> >                                                   
>                  1:10
> > >   /sbin/tc qdisc add dev eth0 parent 1:2 handle
> 20: sfq
> >                                                   
>                   ^^^
> >                                                   
>                  1:20
> > >   /sbin/tc qdisc add dev eth0 parent 1:3 handle
> 30: sfq
> >                                                   
>                   ^^^
> >                                                   
>                  1:30
> > >
> > >   # Add filters to put high priority packets
> into queue 1:1
> > >   /sbin/tc filter add dev eth0 pref 1 protocol
> ip parent 1:0 
> > u32 match ip
> > > src 10.0.0.20 flowid 1:10 /sbin/tc filter add
> dev eth0 pref 1 
> > protocol ip
> > > parent 1:0 u32 match ip dst 10.0.0.20 flowid
> 1:10
> > >
> > >   # Add a filter to put all remaining packets
> into queue 1:2
> > >   /sbin/tc filter add dev eth0 protocol ip
> parent 1:0 prio 2 
> > u32 match ip
> > > dst 0.0.0.0/0 flowid 1:20
> >                                 ^^^
> > 			Here is the problem, You dont have a 1:10 
> > or 1:20 qdisc unless you make the 
> > above corrections.
> > 
> > -- 
> > Regards
> > 
> > Joseph Watson
> _______________________________________________
> LARTC mailing list / LARTC@mailman.ds9a.nl
> http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO:
http://lartc.org/

__________________________________________________
Do you Yahoo!?
Y! Web Hosting - Let the expert host your web site
http://webhosting.yahoo.com/
_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/