[pox-dev] executing the ip_loadbalancer

[shads s]

Hello

Yes I am able to execute this example and getting the same output. Thank
you.
I observed through the example that the server has a predefined capacity of
10Gbps.
Is there any way to configure server bandwidth?


On Thu, Apr 24, 2014 at 11:54 AM, Murphy McCauley <murphy.mccauley at gmail.com
> wrote:

> Ah, see inline.
>
> On Apr 23, 2014, at 11:02 PM, Murphy McCauley <murphy.mccauley at gmail.com>
> wrote:
>
> And you're running the iperf server on 10.0.0.1 and 10.0.0.2?  And where
> are you running the client from?  With what commandline?
>
> -- Murphy
>
> On Apr 23, 2014, at 10:49 PM, shads s <shasi0625 at gmail.com> wrote:
>
> Hello all,
>
> Actually from last few days I am trying to run ip_loadbalancer example
> using POX and mininet.
> After introducing TCP flow using iperf in mininet, it is showing
> "DEBUG:iplb.00-00-00-00-00-01:No client for (IPAddr('10.0.0.2'),
> IPAddr('10.0.0.6'), 56422, 5001)".
> Even tcpdump shows only ARP request packets.
>
> It will be great help if you send me the steps to run ip_loadbalancer.
>
> *Below is the mininet topology:*
> mininet> net
> h1 h1-eth0:s1-eth1
> h2 h2-eth0:s1-eth2
> h3 h3-eth0:s1-eth3
> h4 h4-eth0:s1-eth4
> h5 h5-eth0:s1-eth5
> h6 h6-eth0:s1-eth6
> s1 lo:  s1-eth1:h1-eth0 s1-eth2:h2-eth0 s1-eth3:h3-eth0 s1-eth4:h4-eth0
> s1-eth5:h5-eth0 s1-eth6:h6-eth0
> c0
>
> *Below is the POX output when TCP flow start using "iperf h2 h6" in
> Mininet:*
>
>
> I don't think that makes any sense.  Do you mean "h2 iperf h6"?  That
> doesn't make any sense either.  h2 is one of the *servers* in this case.
>  You want to be running the iperf client from somewhere *else* and have it
> *access* the servers.  And you don't want to be using one of the servers'
> actual addresses anyway -- you want to be using the "virtual" load balancer
> address -- 10.1.2.3.
>
> I just fired up Mininet with single,3 topology, opened xterms for all
> three hosts, and ran the servers in h1 and h2 with iperf -s.  Then I ran
> iperf -c 10.1.2.3 in h3 several times and saw it go to both h1 and h2.
>  Seems to work fine for me.  Could also have probably run that as "h3 iperf
> 10.1.2.3" from the mininet prompt, but I already was opening xterms anyway.
>
> -- Murphy
>
>
>  [root at localhost pox]# ./pox.py log.level --DEBUG misc.ip_loadbalancer
> --ip=10.1.2.3 --servers=10.0.0.1,10.0.0.2
> POX 0.2.0 (carp) / Copyright 2011-2013 James McCauley, et al.
> DEBUG:core:POX 0.2.0 (carp) going up...
> DEBUG:core:Running on CPython (2.7.5/Feb 19 2014 13:47:40)
> DEBUG:core:Platform is
> Linux-3.13.10-200.fc20.i686+PAE-i686-with-fedora-20-Heisenbug
> INFO:core:POX 0.2.0 (carp) is up.
> DEBUG:openflow.of_01:Listening on 0.0.0.0:6633
> INFO:openflow.of_01:[00-00-00-00-00-01 1] connected
> INFO:iplb:IP Load Balancer Ready.
> INFO:iplb:Load Balancing on [00-00-00-00-00-01 1]
> INFO:iplb.00-00-00-00-00-01:Server 10.0.0.2 up
> INFO:iplb.00-00-00-00-00-01:Server 10.0.0.1 up
> DEBUG:iplb.00-00-00-00-00-01:No client for (IPAddr('10.0.0.2'),
> IPAddr('10.0.0.6'), 56422, 5001)
> DEBUG:iplb.00-00-00-00-00-01:No client for (IPAddr('10.0.0.2'),
> IPAddr('10.0.0.6'), 56422, 5001)
> DEBUG:iplb.00-00-00-00-00-01:No client for (IPAddr('10.0.0.2'),
> IPAddr('10.0.0.6'), 56422, 5001)
> DEBUG:iplb.00-00-00-00-00-01:No client for (IPAddr('10.0.0.2'),
> IPAddr('10.0.0.6'), 56422, 5001)
> DEBUG:iplb.00-00-00-00-00-01:No client for (IPAddr('10.0.0.2'),
> IPAddr('10.0.0.6'), 56422, 5001)
> DEBUG:iplb.00-00-00-00-00-01:No client for (IPAddr('10.0.0.2'),
> IPAddr('10.0.0.6'), 56422, 5001)
>
>
> *TCPDUMP output:*
>
> 17:52:29.244757 ARP, Request who-has 10.0.0.1 (Broadcast) tell 10.1.2.3,
> length 28
> 17:52:31.760936 ARP, Request who-has 10.0.0.2 (Broadcast) tell 10.1.2.3,
> length 28
> 17:52:32.067594 IP6 fe80::dc3a:bdff:feb7:4b58 > ff02::2: ICMP6, router
> solicitation, length 8
> 17:52:34.293540 ARP, Request who-has 10.0.0.1 (Broadcast) tell 10.1.2.3,
> length 28
> 17:52:36.809811 ARP, Request who-has 10.0.0.2 (Broadcast) tell 10.1.2.3,
> length 28
> 17:52:39.355686 ARP, Request who-has 10.0.0.1 (Broadcast) tell 10.1.2.3,
> length 28
> 17:52:41.886370 ARP, Request who-has 10.0.0.2 (Broadcast) tell 10.1.2.3,
> length 28
>
> Thanks & Regards,
> Shads
>
>
>
>
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