[LARTC] Ingress qdisc problems

[LARTC] Ingress qdisc problems

[Claudio Neves]

Hello,

I tried ingress qdisc with kernel 2.4.16, and it works very
well.
But when I tried it with kernel 2.2.20, with diffserv-8
patches applied (and latest HTB too), it doesn't work. It
seems that the filter don't classify the packets to the
ingress queue.

Here follows the simplest setup I tried:

#!/bin/bash

tc qdisc del dev eth0 root 2> /dev/null > /dev/null
tc qdisc del dev eth0 ingress 2> /dev/null > /dev/null

tc qdisc add dev eth0 handle ffff: ingress

tc filter add dev eth0 parent ffff: protocol ip prio 0 u32
match ip src \
   0.0.0.0/0 police rate 1000kbit burst 90k mtu 1500 drop
flowid :1


This doesn't seems to limit any traffic, nor the traffic
goes to the ingress qdisc.

root@gw ~# tc -s qdisc
qdisc ingress ffff: dev eth0 ----------------
 Sent 0 bytes 0 pkts (dropped 0, overlimits 0)


Do you have any clues on what I am doing wrong ?!
I'm using iproute2 001007.

Thanks for your attention,

Claudio Neves


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Re: [LARTC] Ingress qdisc problems

[bert hubert]

On Fri, Dec 21, 2001 at 04:49:47PM -0300, Claudio Neves wrote:
> Hello,
> 
> I tried ingress qdisc with kernel 2.4.16, and it works very
> well.
> But when I tried it with kernel 2.2.20, with diffserv-8
> patches applied (and latest HTB too), it doesn't work. It
> seems that the filter don't classify the packets to the
> ingress queue.

It may be that the diffserv patches don't work too well.. you might want to
mail their author, Werner I think.

> This doesn't seems to limit any traffic, nor the traffic

In 2.4 the ingress qdisc also doesn't match any packets according to the
stats- it's a bug that Jamal has fixed, should go in somewhere soon.

Regards,

bert

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Re: [LARTC] Ingress qdisc problems

[Claudio Neves]

 --- bert hubert <ahu@ds9a.nl> escreveu: > On Fri, Dec 21,
> It may be that the diffserv patches don't work too well..
> you might want to
> mail their author, Werner I think.
> 
> > This doesn't seems to limit any traffic, nor the
> traffic
> 
> In 2.4 the ingress qdisc also doesn't match any packets
> according to the
> stats- it's a bug that Jamal has fixed, should go in
> somewhere soon.

You are right, even in 2.4 the ingress qdisc doesn't show
any packets on the stats. But filter stats are correct, the
counter increments.
On 2.2, nothing works.

I'll try posting on the diffserv mailing list.
Thanks for your attention, and for your great work writing
the HOWTO!

Claudio Neves.

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