Hi Pradeep,
Thank you.
Now I have associated this meter to a flow (Switch2) in one side of the
network using the below command.
dpctl unix:/var/runs2.sock flow-mod cmd=add,table=0 in_port=1
meter:2 apply:output=2
I want to match field in the other side of the network say in Switch3 to
match the packets that are dscp marked. I saw a match field for dscp in
github as ip_dscp.I just don't know how to use it. Since I dint know what
exactly happens when the packets are marked. looks like the ToS value in
the IP header will be reduced by the value given by us in "prec_level=x",
Am I right?
If so in the below command,
dpctl unix:/var/runs3.sock flow-mod cmd=add,table=0
in_port=3,eth_type=0x800,ip_dscp=y apply:output=1
What should be the value of ip_dscp=y when I give prec_level=x?
On Thu, May 23, 2013 at 7:05 PM, Voleti, Pradeep (HP Networking) <
pvol...@hp.com> wrote:
> Hi Purnima,****
>
> ** **
>
> I think the command should be “dpctl unix:/var/runs2.sock meter-mod
> cmd=add,flags=1,meter=2 dscp_remark:rate=10000,prec_level=x” to create a
> meter which would remark the DSCP precedence to value “x” for all packets
> that exceed 10000kbps****
>
> (I see that you were using mod command instead of add)****
>
> ** **
>
> However, I see that the current dpctl code does not have any code using
> the “prec_level” yet. (You may need to modify the same).****
>
> ** **
>
> To associate this meter to a flow, you would need to use “meter:2” in the
> actions (assuming your meter ID is 2)****
>
> ** **
>
> All flows that would match the flow would use this meter and that would
> mean that the packets if exceeding the rate would have their DSCP
> precedence level changed by the value mentioned while configuring the meter.
> ****
>
> ** **
>
> Regards,****
>
> Pradeep.V****
>
> ** **
>
> *From:* openflow-discuss-boun...@lists.stanford.edu [mailto:
> openflow-discuss-boun...@lists.stanford.edu] *On Behalf Of *Purnima Mohan
> *Sent:* Thursday, May 23, 2013 4:09 PM
> *To:* openflow-discuss
> *Subject:* [openflow-discuss] Openflow1.3 Metering with band type as
> DSCP_REMARK****
>
> ** **
>
> Hi,
>
> ****
>
> Can anyone help me with the dscp marking feature in Openflow1.3. I am
> using ofsoftswitch13.****
>
> 1. For eg. I configure a meter as shown below and attach it to a flow. ***
> *
>
>
> dpctl unix:/var/runs2.sock meter-mod cmd=mod,flags=1,meter=2
> dscp_remark:rate=10000
>
> SENDING:
> meter_mod{cmd="mod", flags="0x1"", meter_id="2"", bands=[{type =
> dscp_remark, rate="10000", burst_size="0", prec_level="0"}]}
>
>
> OK.****
>
> 2. Now how do I use match field to check if the packets are marked? What
> does the dscp_remark feature actually do?****
>
> Thanks in advance,****
>
>
> -- ****
>
> *Regards,*****
>
> *Purnima*****
>
> ** **
>
> _______________________________________________
> openflow-discuss mailing list
> openflow-discuss@lists.stanford.edu
> https://mailman.stanford.edu/mailman/listinfo/openflow-discuss
>
>
--
*Regards,*
*Purnima*
_______________________________________________
openflow-discuss mailing list
openflow-discuss@lists.stanford.edu
https://mailman.stanford.edu/mailman/listinfo/openflow-discuss
