Hi
Recently I find out some problems during the development of a Ryu's
application.
The first problem I found out is I don't know how to enable the buffering
in the SDN switch.
Basically most of the time when adding a rule we use OFP_NO_BUFFER to tell
the switch not to buffer the packet .
I try to change the OFP_NO_BUFFER to the number of byte the switch can
transmit.
However I found out when the number is small like 60~70 bytes, the switch
will send an incomplete packet to the controller. But the effect I want is
the switch will add the packet into its own buffer and will only send the
buffer id and the packet header to the controller without any payload. Is
there something I miss or need to add in the .EventOFPSwitchFeature handler
?
The second problem I need to know is the cookie in the SDN flow table. I
can only guess that, every SDN flow rule in the SDN switch will have a
cookie, and when we want to modify or delete the flow rule, we basically
can use the cookie mask to filter out some flow rules. But how does this
work, what is the maximum number of the cookie mask ? An example will be
appreciated.
BR
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