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doc: Consider null buffer_id in first example

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If the switch does not buffer the packet (like when using mininet), the example does not work.
For such cases, include the packet contents in  OFPPacketOut
This commit is contained in:
Santiago Rodriguez 2020-06-14 16:13:22 +01:00
parent 861587c8ed
commit 20c0ececeb
1 changed files with 7 additions and 2 deletions
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9
doc/source/writing_ryu_app.rst
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@ -67,11 +67,16 @@ the ports.
dp = msg.datapath
ofp = dp.ofproto
ofp_parser = dp.ofproto_parser
actions = [ofp_parser.OFPActionOutput(ofp.OFPP_FLOOD)]
data = None
if msg.buffer_id == ofp.OFP_NO_BUFFER
data = msg.data
out = ofp_parser.OFPPacketOut(
datapath=dp, buffer_id=msg.buffer_id, in_port=msg.in_port,
actions=actions)
actions=actions, data = data)
dp.send_msg(out)