On Fri, 21 Mar 2014 16:40:58 -0300
Eros Spalla <[email protected]> wrote:
> Hi. Im running some tests, and realized is happening some delay (about
> 40ms) after flowmod messages. Im running on ryu 3.7 a simple-switch-v13
> app, 2 switches (ovs) and 4 hosts per switch. For this test I ran the
> command pingall in Mininet.
> I attached an image with the packets in wireshark.
You mean that your application sends PacketOut message right after
FlowMod message but PacketOut was not sent right after FlowMod
message?
If so, the following helps?
diff --git a/ryu/controller/controller.py b/ryu/controller/controller.py
index 93d2b33..0ecb903 100644
--- a/ryu/controller/controller.py
+++ b/ryu/controller/controller.py
@@ -22,6 +22,7 @@ from ryu.lib.hub import StreamServer
import traceback
import random
import ssl
+from socket import IPPROTO_TCP, TCP_NODELAY
import ryu.base.app_manager
@@ -101,6 +102,7 @@ class Datapath(ofproto_protocol.ProtocolDesc):
super(Datapath, self).__init__()
self.socket = socket
+ self.socket.setsockopt(IPPROTO_TCP, TCP_NODELAY, 1)
self.address = address
self.is_active = True
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