RE: Tc does not seem to be limiting bandwidth

["Neil Aggarwal" <neil@JAMMConsulting.com>]

Hello all:

I think I figured out something.

I am able to filter the download bandwidth to a VPS server, but
not the upload bandwidth.

How do I filter the upload bandwidth for a VPS server?

Thank you,
  Neil

--
Neil Aggarwal, (972)834-1565, http://UnmeteredVPS.net/centos
Virtual private server with CentOS 6 preinstalled
Unmetered bandwidth = no overage charges

-----Original Message-----
From: lartc-owner@vger.kernel.org [mailto:lartc-owner@vger.kernel.org] On
Behalf Of Neil Aggarwal
Sent: Sunday, February 03, 2013 5:56 PM
To: lartc@vger.kernel.org
Subject: RE: Tc does not seem to be limiting bandwidth

Hello all:

It looks like tc thinks I set a token bucket filter on my interface:

# tc -s qdisc ls dev v1252
qdisc tbf 8006: root refcnt 2 rate 1000Kbit burst 2Kb lat 5.0ms
 Sent 6788208 bytes 51190 pkt (dropped 0, overlimits 0 requeues 0)
 rate 0bit 0pps backlog 0b 0p requeues 0

But I am still seeing bandwidth consumption hitting 80mbit/sec.

Any ideas why it would not be working?
This is a CentOS server with all the latest updates installed.
V1252 is a KVM guest running on the machine.

Thank you,
  Neil

--
Neil Aggarwal, (972)834-1565, http://UnmeteredVPS.net/centos
Virtual private server with CentOS 6 preinstalled
Unmetered bandwidth = no overage charges

-----Original Message-----
From: lartc-owner@vger.kernel.org [mailto:lartc-owner@vger.kernel.org] On
Behalf Of Neil Aggarwal
Sent: Friday, February 01, 2013 1:20 PM
To: lartc@vger.kernel.org
Subject: Tc does not seem to be limiting bandwidth

Hello:

I have these commands in my firewall startup script:

DEV=v1252
IP=a.b.c.d
/sbin/tc qdisc del dev $DEV root
/sbin/tc qdisc add dev $DEV root handle 1: htb default 30
/sbin/tc class add dev $DEV parent 1: classid 1:1 htb rate 10mbit
/sbin/tc class add dev $DEV parent 1: classid 1:2 htb rate 10mbit
/sbin/tc filter add dev $DEV protocol ip parent 1:0 prio 1 u32 match ip dst
$IP flowid 1:1
/sbin/tc filter add dev $DEV protocol ip parent 1:0 prio 1 u32 match ip src
$IP flowid 1:2

And tc qdisc list shows it has something for that dev:

qdisc htb 1: dev v1252 root refcnt 2 r2q 10 default 30 direct_packets_stat 3

But, I am still seeing huge consumption of bandwidth from that server.
Take a look at the attached graph.

Any ideas why tc is not limiting the bandwidth?

Thanks,
  Neil

--
Neil Aggarwal, (972)834-1565, http://UnmeteredVPS.net/centos
Virtual private server with CentOS 6 preinstalled
Unmetered bandwidth = no overage charges

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