Hi, Dear all:

    After receiving arp packet from openflow switch, the controller will
handler the arp and send the arp reply packet out. For example, an arp
packet ask for the ip adress 10.0.0.1, and the controller send the reply:
00:00:00:00:00:01.

    My question is can the controller send an "arp flow-mod" into the
openflow swith to avoiding Packet-In if another arp ask for the same ip
adress of 10.0.0.1 to improve performance.

Best Regards,
Vinllen
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