On Fri, 6 Jun 2014 16:57:19 -0400
Chen Chen <[email protected]> wrote:
> Hi guys:
>
> I'm using ryu 3.4 with ovs 2.0.1, through OpenFlow 1.2.
> There is a bewildering problem:
> A GotoTable instruction would result in a flow entry whose actions is
> "drop", rather than "GotoTable".
>
> To be more specific, the code for installing the flow entry is as follows:
>
> *****
> @handler.set_ev_cls(dpset.EventDP, dpset.DPSET_EV_DISPATCHER)
> def switch_connection_handler(self, event):
> datapath = event.dp
> parser = datapath.ofproto_parser
> ofproto = datapath.ofproto
>
> if event.enter:
> match = parser.OFPMatch(eth_src="10:10:10:10:10:10")
> inst = [parser.OFPInstructionGotoTable(1)]
>
> datapath.send_msg(
> parser.OFPFlowMod(datapath=datapath,
> match=match,
> priority=50,
> flags=ofproto.OFPFF_SEND_FLOW_REM,
> command=ofproto.OFPFC_ADD,
> instructions=inst))
Hmm, looks ok. Actually, I can add a flow including 'goto_table' to
OVS successfully with the similar code:
fujita@ubuntu:~$ sudo ovs-ofctl dump-flows -O OpenFlow13 br0
OFPST_FLOW reply (OF1.3) (xid=0x2):
cookie=0x0, duration=7.91s, table=0, n_packets=0, n_bytes=0,
priority=1,in_port=10 actions=goto_table:1
=
from ryu.base import app_manager
from ryu.controller import ofp_event
from ryu.controller.handler import CONFIG_DISPATCHER, MAIN_DISPATCHER
from ryu.controller.handler import set_ev_cls
from ryu.ofproto import ofproto_v1_3
class SimpleSwitch13(app_manager.RyuApp):
OFP_VERSIONS = [ofproto_v1_3.OFP_VERSION]
def __init__(self, *args, **kwargs):
super(SimpleSwitch13, self).__init__(*args, **kwargs)
pass
@set_ev_cls(ofp_event.EventOFPStateChange, MAIN_DISPATCHER)
def add_flow(self, ev):
datapath = ev.datapath
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
match = parser.OFPMatch(in_port=10)
inst = parser.OFPInstructionGotoTable(1)
priority = 1
mod = parser.OFPFlowMod(datapath=datapath, priority=priority,
match=match, instructions=[inst])
datapath.send_msg(mod)
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