Hi,
thank you very much. Sometimes life can be so easy. I just didn't see
the answer :D
I searched for wildcard in the source and found the following in
src/nox/lib/core.py:
"Absent keys are interpretted as wildcards."
So the answer is: leaving the value empty should do the trick!
I am working in Python. I had only in mind that it was called "ANY" in
the OpenFlow specification, so I only searched for ANY and tried to find
relevant code.
Best regards
Bernd
On 26.03.2012 17:59, Hiroyasu Ohyama wrote:
Hi Bernd
In order to realize that, there is a thing called "Wildcard".
The OpenFlow specification v1.0 at "5.2.3 Flow Match Structures" helps you.
Concretely you can do as follows. I will assume that you create a
component in C/C++.
You would fill a ofp_flow_mod object when you install a flow into swtich.
To detect ANY value at tcp_source, you should set following value at
wildcards variable of ofp_match object which combined in ofp_flow_mod
object (see include/openflow/openflow/openflow.h).
ofm->match.wildcards = 0;
ofm->match.wildcards |= htonl(OFPFW_TP_SRC);
And following statement is needed to be interpreted as a tcp/ip microflow.
ofm->match.nw_proto = IP_TYPE_TCP;
I hope you will find it helpful.
De: Hiroyasu OHYAMA
2012年3月26日23:34 Bernd Wittefeld<[email protected]>:
Hi,
I couldn't find anything useful, so I hope someone over here can give me a
quick answer :)
I am installing flows on switches and I have to use an ANY value for the
Transport Layer source port, but I don't know what I have to insert there.
Is there some kind of global variable for this purpose?
Thanks in advance
Bernd
