Hi,

The way you are creating the queues is right. You can check the queues you
are making by a command of ovsctl (don't really remember it now). However i
am not sure about the slices you are making since I haven't worked with
flow visor.

Why are you running two controllers?



On Tuesday, 9 February 2016, Guillermo Chica Sabariego <
guillermoch...@correo.ugr.es> wrote:

> Hello everyone,
>
> I am running a small experiment to isolate bandwidth with flowvisor
> (version 1.4) implementing a port based slicing. With mininet, I create a
> topology that consists of a host h1 (10.0.0.1), connected to a switch,
> called s3, connected to another host, h2 (10.0.0.2), this way:
>
> h1 ----- s3 ------ h2
>
>
> To achieve this I use this mininet command: sudo mn --custom simpletopo.py
> --topo mytopo --switch ovsk --controller remote --mac --arp --link tc
>
> I want all traffic going to port 666 from h1 to h2 to have a bandwidth of
> 1Mbps, and all traffic going to port 555 from h1 to h2 to have a bandwidth
> of 1Gbps. To achieve this, I create two queues in switch s3, q0 and q1. q0
> is for the 1Mbps traffic and q1 for 1Gbps traffic.
>
> I create the queues like this:
>
> sudo ovs-vsctl -- set Port s3-eth1 qos=@newqos -- --id=@newqos create QoS
> type=linux-htb other-config:max-rate=10000000000 queues=0=@q0,1=@q1 --
> --id=@q0 create Queue other-config:min-rate=1000000
> other-config:max-rate=1000000 -- --id=@q1 create Queue
> other-config:min-rate=1000000000 other-config:max-rate=1000000000
>
> sudo ovs-vsctl -- set Port s3-eth2 qos=@newqos -- --id=@newqos create QoS
> type=linux-htb other-config:max-rate=10000000000 queues=0=@q0,1=@q1 --
> --id=@q0 create Queue other-config:min-rate=1000000
> other-config:max-rate=1000000 -- --id=@q1 create Queue
> other-config:min-rate=1000000000 other-config:max-rate=1000000000
>
> I have supposed that it's necessary to create a QoS for the two interfaces
> that connect the switch to the hosts, that is a QoS for eth1 and a QoS for
> eth2. But I'm not sure of this. Can anyone tell me if I'm wrong?
>
> Then, I have created the two slices. Slice1 for traffic going to and from
> port 666 and slice2 for traffic going to and from port 555.
>
> fvctl add-slice slice1 tcp:127.0.0.2:6643 gene...@email.com
> fvctl add-slice slice2 tcp:127.0.0.3:6653 gene...@email.com
>
> fvctl add-flowspace --forced-queue=1 flow1 3 100
> in_port=1,nw_src=10.0.0.1,nw_dst=10.0.0.2,tp_dst=666 slice1=7
> fvctl add-flowspace --forced-queue=0 flow2 3 100
> in_port=1,nw_src=10.0.0.1,nw_dst=10.0.0.2,tp_dst=555 slice2=7
> fvctl add-flowspace --forced-queue=1 flow3 3 100
> in_port=2,nw_src=10.0.0.2,nw_dst=10.0.0.1,tp_src=666 slice1=7
> fvctl add-flowspace --forced-queue=0 flow4 3 100
> in_port=2,nw_src=10.0.0.2,nw_dst=10.0.0.1,tp_src=555 slice2=7
>
> After this, I run the controllers of each slice:
>
> ./pox.py --verbose pox.openflow.of_01 --address=127.0.0.2 --port=6643
> pox.forwarding.l2_learning
> ./pox.py --verbose pox.openflow.of_01 --address=127.0.0.3 --port=6653
> pox.forwarding.l2_learning
>
> Then, I run the topology in mininet, with the command given above. And
> finally, I run a test with iperf to test the bandwidth. However, I always
> get a bandwidth of 17-18 Gbps. So flowvisor force-enqueue option is not
> working. What is wrong with my procedure? Maybe a problem with the queues I
> have created? I'd appreciate any help.
>
> Thank you.
>
> Best regards,
> Guillermo Chica.
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>
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