Yes capacity of 2 servers (h1,h2) is 20GBps.
Is there a way to configure these servers so that the capacity of one
server is more than the other?
On Thu, Apr 24, 2014 at 2:51 PM, Murphy McCauley
<murphy.mccau...@gmail.com>wrote:
> I don't know anything about anything having a predefined capacity of
> 10GBps. Are you talking about iperf? At least on my system, I was getting
> upwards of 20GBps.
>
> -- Murphy
>
> On Apr 24, 2014, at 2:16 AM, shads s <shasi0...@gmail.com> wrote:
>
> 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.mccau...@gmail.com> wrote:
>
>> Ah, see inline.
>>
>> On Apr 23, 2014, at 11:02 PM, Murphy McCauley <murphy.mccau...@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 <shasi0...@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@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
>>
>>
>>
>>
>
>
