[ovs-discuss] MTU / Fragmentation / VXLAN

[Heim, Dennis]

I have an issue with SIP phones registered to a Cisco Call Manager Express 
(CME).

Network Layout:
Phone->Physical Switch->OvS(A)VXLAN Overlay-OvS(B)-CME.

When the packet reaches  OvS(A) the sip (invite) packet for the phone call is 
in tact (packet 51).

[cid:image006.jpg@01D55BA6.A22EEA20]

However, when I look at traces on OvS(B), I do not see that SIP invite. 
Interesting enough, the SIP registration message arrives as the phone is 
registered with the CME.

Dennis Heim | Domain Architect (Collaboration Labs)
World Wide Technology, Inc. | +1 314-212-1814
[cid:image001.png@01D10DD2.7FC81F90]
[cid:image002.png@01D10DD2.7FC81F90][cid:image003.png@01D10DD2.7FC81F90][cid:image004.png@01D10DD2.7FC81F90]

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Re: [ovs-discuss] Multiple streams using ostinato packet generator

[Ben Pfaff]

On Sun, Aug 25, 2019 at 08:21:08PM +0530, V Sai Surya Laxman Rao Bellala wrote:
> Hello all, is it possible to generate multiple streams with varying vlanid
> for each stream using ostinato packet generator?

I haven't heard of that packet generator before, and it's not a typical
topic of discussion on this mailing list, so you probably will get
better help elsewhere.
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[ovs-discuss] QoS Queues on wireless interfaces

[Calvin . Schmidt]

Hi all,

 

I tried configuring queues with OpenFlow on ethernet interfaces and it worked just fine.

However if I set a specific queue on a flow with the set_queue action that outputs the packet to a wireless interface, it somehow is ignored and the default queue 0 is taken. I can set a certain bandwith on queue 0 and therby limit the bandwith however this is not sufficient for my use case.

 

I've run the following commands:

 

1. Create the QoS and Queues on wireless interface wlan0


ovs-vsctl -- set port wlan0 qos=@newqos -- --id=@newqos create qos type=linux-htb queues:1=@newqueue queues:2=@newqueue2 -- --id=@newqueue create queue other-config:min-rate=300 other-config:max-rate=300 -- --id=@newqueue2 create queue other-config:min-rate=800 other-config:max-rate=800

2. Check the Queues have been created

ovs-ofctl queue-get-config ovsbr wlan0 -O OpenFlow13

3. Create a flow that uses Queue 1 for HTTPS traffic

ovs-ofctl add-flow ovsbr priority=1,dl_type=0x800,nw_proto=6,tp_src=443,in_port="eth0.2",actions=set_queue:1,output:"wlan0" -O OpenFlow13

4. Check the flow has been created and packets are processed by it

ovs-ofctl dump-flows ovsbr -O OpenFlow13

5. Check if traffic is going through Queue 1 (unfortunately not)

ovs-ofctl queue-stats ovsbr -O OpenFlow13

 


So my questions are:

 

1. Is it possible to have multiple queues on a wireless interface that are managed by a set of flows? 

2. What do I have to do to make it work?

 

I found this thread which seems to be related to the issue as well however I do not quite get it: https://mail.openvswitch.org/pipermail/ovs-discuss/2013-August/030714.html

 

Any help is highly appreciated.

Thanks and kind regards,
Calvin
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[ovs-discuss] Multiple streams using ostinato packet generator

[V Sai Surya Laxman Rao Bellala]

Hello all, is it possible to generate multiple streams with varying vlanid
for each stream using ostinato packet generator?
Regards.
Laxman
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