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: 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
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