[Click] Queue Capacity and RatedUnqueue

[Giovanni Giardinelli]

Hi Eddie,

I use three ethernet Gbit

In order to generate packets, I use  the element FastUDPSource.

tester's configuration is the following:  

src2::FastUDPSource (204800,8192000,64,00:30:48:28:ba:28,192.168.10.145,
1234,00:30:48:28:ba:ae,192.168.10.209,1234) 
-> SetIPDSCP(46)
-> ToDevice(eth2);

src3::FastUDPSource (20000,800000,64,00:30:48:28:ba:29,192.168.10.225,
1234,00:30:48:28:ba:af,192.168.10.209,1234) 
-> SetIPDSCP(0)
-> ToDevice(eth3);

FromDevice(eth0) 
-> c0 :: Classifier(12/0806 20/0001,-);

c0[0] 
-> ar0 :: ARPResponder(192.168.10.209 00:07:e9:1f:b2:50)
-> SimpleQueue
-> ToDevice(eth0);

c0[1]
-> cf0:: Counter() 
-> Discard();


The principal part of the configuration of the Router is the following:  

c0 :: Classifier(12/0806 20/0001,
                  12/0806 20/0002,
                  12/0800,
                  -);

c2 :: Classifier(12/0806 20/0001,
                  12/0806 20/0002,
                  12/0800,
                  -);

c3 :: Classifier(12/0806 20/0001,
                  12/0806 20/0002,
                  12/0800,
                  -);

src0 :: PollDevice(eth0)
-> [0]c0;
src2 :: PollDevice(eth2) 
-> [0]c2;
src3 :: PollDevice(eth3) 
-> [0]c3;

.............
.............
.............

c2[2] 
      -> Paint(3) 
      -> Strip(14)
      -> CheckIPHeader(1.255.255.255)
      -> ipc2 :: IPClassifier(ip dscp 46, ip dscp 0); 

c3[2] 
      -> Paint(4) 
      -> Strip(14)
      -> CheckIPHeader(1.255.255.255)
      -> ipc3 :: IPClassifier(ip dscp 46, ip dscp 0);

qef :: SimpleQueue(32000);

ipc2[0] 
-> qef; 

qef
-> RatedUnqueue(204800) 
-> rt;

...........
...........
...........

PokeHandlers( wait 5,
  read qef.length,
  read qef.droppes
  loop
  )


The qef.lenght=32000

the qef.droppes increases in continuation



Thanks

Giovanni



----- Original Message ----- 
From: "Eddie Kohler" <kohler at CS.UCLA.EDU>
To: "Giovanni Giardinelli" <giovanni.giardinelli at tin.it>
Cc: <click at amsterdam.lcs.mit.edu>
Sent: Friday, June 18, 2004 11:04 PM
Subject: Re: [Click] Queue Capacity and RatedUnqueue


> Giovanni
> 
> Please send a more complete configuration.  What are you using to 
> generate packets?
> 
> 
> Eddie
> 
> On Jun 18, 2004, at 2:06 PM, Giovanni Giardinelli wrote:
> 
> > Hi all,
> > I'm doing some tests for a simple router architecture which have to 
> > perform differentiated service between two kind of flows.
> > When I use a Queue element and a RatedUnqueue element in this way:
> > SimpleQueue(32000) -> RatedUnqueue(X), where X is a certain rate 
> > value, even if the tester emission rate is <=X, the queue
> > always overflow, causing a lot of packets to be dropped. I use 64 
> > bytes packets.
> > I have two question:
> > 1) Why the click in my machine not allow me to fix a CAPACITY 
> > parameter value for the queue greater than 32000 packets?
> > 2) Why the RatedUnqueue element seems to not work correctly?
> >
> > _______________________________________________
> > click mailing list
> > click at amsterdam.lcs.mit.edu
> > https://amsterdam.lcs.mit.edu/mailman/listinfo/click
>