Hi,
> But I have also used --verbose to chek EventOFPErrorMsg
> but I could not get any EventOFPErrorMsg
Hmm,,,
Can you edit app/ofctl/service.py as follows in order to identify the cause of
the error message?
@@ -174,6 +174,27 @@ class OfctlService(app_manager.RyuApp):
def _handle_reply(self, ev):
msg = ev.msg
datapath = msg.datapath
+ ofp = datapath.ofproto
+ ofproto_parser = datapath.ofproto_parser
+ (version, msg_type, msg_len, xid) = ofproto_parser.header(msg.data)
+ self.logger.debug('EventOFPErrorMsg received.')
+ self.logger.debug(
+ 'version=%s, msg_type=%s, msg_len=%s, xid=%s', hex(msg.version),
+ hex(msg.msg_type), hex(msg.msg_len), hex(msg.xid))
+ self.logger.debug(
+ ' `-- msg_type: %s', ofp.ofp_msg_type_to_str(msg.msg_type))
+ self.logger.debug(
+ "OFPErrorMsg(type=%s, code=%s, data=b'%s')", hex(msg.type),
+ hex(msg.code), utils.binary_str(msg.data))
+ self.logger.debug(
+ ' |-- type: %s', ofp.ofp_error_type_to_str(msg.type))
+ self.logger.debug(
+ ' |-- code: %s', ofp.ofp_error_code_to_str(msg.type, msg.code))
+ self.logger.debug(
+ ' `-- data: version=%s, msg_type=%s, msg_len=%s, xid=%s',
+ hex(version), hex(msg_type), hex(msg_len), hex(xid))
+ self.logger.debug(
+ ' `-- msg_type: %s', ofp.ofp_msg_type_to_str(msg_type))
try:
si = self._switches[datapath.id]
except KeyError:
Or, if you want to manage dp instances, there is an other way.
The other way is to use controller/dpset.py.
I attached a sample app file to this mail that is for understanding how to use
a part of the function of dpset.
(Note: This app is based on the simple_switch_13.py)
thanks,
On 2016年02月25日 23:18, Osman Titu wrote:
> Hi
>
> Thanks for your reply.
>
>>from ryu.app.ofctl.api import get_datapath
>>dp = get_datapath(self, datapath.id <http://datapath.id> )
>
> The thing is that this code is giving me the datapath object from datapath.id
> <http://datapath.id> but showing the error "unknown error xid"
>
> To execute my program I am using
> #ryu-manager --observe-links
>
> But I have also used --verbose to chek EventOFPErrorMsg
> but I could not get any EventOFPErrorMsg
>
> BR
> Titu
>
> On Thu, Feb 25, 2016 at 3:03 AM, Minoru TAKAHASHI
> <[email protected] <mailto:[email protected]>> wrote:
>
> Hi,
>
> On 2016年02月24日 01:03, Osman Titu wrote:
> > Hi
> >
> > For getting datapath object from datapath.id <http://datapath.id>
> <http://datapath.id> (which is an integer) I have added this code bellow
> >
> > from ryu.app.ofctl.api import get_datapath
> >
> > dp = get_datapath(self, datapath.id <http://datapath.id>
> <http://datapath.id>)
>
> Getting the datapath object is successful in my environment.
> My sample code and the execution result is as follows.
>
> <sample code>
>
> from ryu.app.ofctl.api import get_datapath
> ...
> self.add_flow(datapath, 0, match, actions)
> print "-----------------------------------------"
> print "get_datapath(self, datapath.id <http://datapath.id>) start"
> dp = get_datapath(self, datapath.id <http://datapath.id>)
> print dp
> print dp.id <http://dp.id>
> print "get_datapath(self, datapath.id <http://datapath.id>) end"
> print "-----------------------------------------"
>
> <execution result>
>
> $ ryu-manager ./app/sample.py --verbose
> loading app ./app/sample.py
> require_app: ryu.app.ofctl.service is required by sample
> loading app ryu.app.ofctl.service
> loading app ryu.controller.ofp_handler
> instantiating app ryu.app.ofctl.service of OfctlService
> ...snipped...
> connected socket:<eventlet.greenio.GreenSocket object at 0x7f565cbd6d50>
> address:('127.0.0.1', 35091)
> hello ev <ryu.controller.ofp_event.EventOFPHello object at 0x7f565cbea150>
> move onto config mode
> EVENT ofp_event->SimpleSwitch13 EventOFPSwitchFeatures
> EVENT ofp_event->ofctl_service EventOFPSwitchFeatures
> switch features ev
> version=0x4,msg_type=0x6,msg_len=0x20,xid=0xe126de9,OFPSwitchFeatures(auxiliary_id=0,capabilities=79,datapath_id=1,n_buffers=256,n_tables=254)
> -----------------------------------------
> get_datapath(self, datapath.id <http://datapath.id>) start
> EVENT SimpleSwitch13->ofctl_service GetDatapathRequest
> add dpid 1 datapath <ryu.controller.controller.Datapath object at
> 0x7f565cbd6b10> new_info <ryu.app.ofctl.service._SwitchInfo object at
> 0x7f565cbea690> old_info None
> dpid 1 -> datapath <ryu.controller.controller.Datapath object at
> 0x7f565cbd6b10>
> <ryu.controller.controller.Datapath object at 0x7f565cbd6b10>
> 1
> get_datapath(self, datapath.id <http://datapath.id>) end
> -----------------------------------------
>
> >
> > but I am getting this message "unknown error xid"
>
> Maybe, one of the following was executed.
>
> https://github.com/osrg/ryu/blob/master/ryu/app/ofctl/service.py#L185
> or
> https://github.com/osrg/ryu/blob/master/ryu/app/ofctl/service.py#L194
>
> And, the code is described in the handler which is for receive the
> OFPErrorMsg.
>
> https://github.com/osrg/ryu/blob/master/ryu/app/ofctl/service.py#L173
>
> There is a possibility that you were receiving some kind of OpenFlow
> error message.
> FYI, it may becomes easier to find out the OFPErrorMsg for using
> --verbose option as follows.
>
> # ryu-manager [app_name] --verbose
>
> <output example>
>
> EventOFPErrorMsg received.
> version=0x4, msg_type=0x1, msg_len=0x4c, xid=0x55572dbb
> `-- msg_type: OFPT_ERROR(1)
> OFPErrorMsg(type=0x6, code=0x1,
>
> data=b'\x04\x0f\x00\x40\x55\x57\x2d\xbb\x00\x00\x00\x00\x00\x00\x00\x01\x00\x30\x00\x01\xff\xff\xff\xff\xff\xff\xff\xff\x00\x00\x00\x00\x00\x19\x00\x10\x80\x00\x16\x04\x0a\x00\x00\x03\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x02\xff\xe5\x00\x00\x00\x00\x00\x00')
> |-- type: OFPET_GROUP_MOD_FAILED(6)
> |-- code: OFPGMFC_INVALID_GROUP(1)
> `-- data: version=0x4, msg_type=0xf, msg_len=0x40, xid=0x55572dbb
> `-- msg_type: OFPT_GROUP_MOD(15)
>
>
> thanks,
>
> >
> > How can I fix it?
> >
> > BR
> > Titu
> >
> >
> >
> >
> >
> ------------------------------------------------------------------------------
> > Site24x7 APM Insight: Get Deep Visibility into Application Performance
> > APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
> > Monitor end-to-end web transactions and take corrective actions now
> > Troubleshoot faster and improve end-user experience. Signup Now!
> > http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140
> >
> >
> >
> > _______________________________________________
> > Ryu-devel mailing list
> > [email protected] <mailto:[email protected]>
> > https://lists.sourceforge.net/lists/listinfo/ryu-devel
> >
>
>
# Copyright (C) 2011 Nippon Telegraph and Telephone Corporation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
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
from ryu.lib.packet import packet
from ryu.lib.packet import ethernet
from ryu.lib.packet import ether_types
from ryu.controller import dpset
class SimpleSwitch13(app_manager.RyuApp):
OFP_VERSIONS = [ofproto_v1_3.OFP_VERSION]
_CONTEXTS = {
'dpset': dpset.DPSet
}
def __init__(self, *args, **kwargs):
super(SimpleSwitch13, self).__init__(*args, **kwargs)
self.mac_to_port = {}
self.dpset = kwargs['dpset']
@set_ev_cls(ofp_event.EventOFPSwitchFeatures, CONFIG_DISPATCHER)
def switch_features_handler(self, ev):
datapath = ev.msg.datapath
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
# install table-miss flow entry
#
# We specify NO BUFFER to max_len of the output action due to
# OVS bug. At this moment, if we specify a lesser number, e.g.,
# 128, OVS will send Packet-In with invalid buffer_id and
# truncated packet data. In that case, we cannot output packets
# correctly. The bug has been fixed in OVS v2.1.0.
match = parser.OFPMatch()
actions = [parser.OFPActionOutput(ofproto.OFPP_CONTROLLER,
ofproto.OFPCML_NO_BUFFER)]
self.add_flow(datapath, 0, match, actions)
def add_flow(self, datapath, priority, match, actions, buffer_id=None):
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
inst = [parser.OFPInstructionActions(ofproto.OFPIT_APPLY_ACTIONS,
actions)]
if buffer_id:
mod = parser.OFPFlowMod(datapath=datapath, buffer_id=buffer_id,
priority=priority, match=match,
instructions=inst)
else:
mod = parser.OFPFlowMod(datapath=datapath, priority=priority,
match=match, instructions=inst)
datapath.send_msg(mod)
@set_ev_cls(ofp_event.EventOFPPacketIn, MAIN_DISPATCHER)
def _packet_in_handler(self, ev):
# If you hit this you might want to increase
# the "miss_send_length" of your switch
if ev.msg.msg_len < ev.msg.total_len:
self.logger.debug("packet truncated: only %s of %s bytes",
ev.msg.msg_len, ev.msg.total_len)
msg = ev.msg
datapath = msg.datapath
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
in_port = msg.match['in_port']
print "-------------------------"
dpid = 1
dp = self.dpset.get(int(dpid))
print dp
print dp.id
print "-------------------------"
pkt = packet.Packet(msg.data)
eth = pkt.get_protocols(ethernet.ethernet)[0]
if eth.ethertype == ether_types.ETH_TYPE_LLDP:
# ignore lldp packet
return
dst = eth.dst
src = eth.src
dpid = datapath.id
self.mac_to_port.setdefault(dpid, {})
self.logger.info("packet in %s %s %s %s", dpid, src, dst, in_port)
# learn a mac address to avoid FLOOD next time.
self.mac_to_port[dpid][src] = in_port
if dst in self.mac_to_port[dpid]:
out_port = self.mac_to_port[dpid][dst]
else:
out_port = ofproto.OFPP_FLOOD
actions = [parser.OFPActionOutput(out_port)]
# install a flow to avoid packet_in next time
if out_port != ofproto.OFPP_FLOOD:
match = parser.OFPMatch(in_port=in_port, eth_dst=dst)
# verify if we have a valid buffer_id, if yes avoid to send both
# flow_mod & packet_out
if msg.buffer_id != ofproto.OFP_NO_BUFFER:
self.add_flow(datapath, 1, match, actions, msg.buffer_id)
return
else:
self.add_flow(datapath, 1, match, actions)
data = None
if msg.buffer_id == ofproto.OFP_NO_BUFFER:
data = msg.data
out = parser.OFPPacketOut(datapath=datapath, buffer_id=msg.buffer_id,
in_port=in_port, actions=actions, data=data)
datapath.send_msg(out)
------------------------------------------------------------------------------
Site24x7 APM Insight: Get Deep Visibility into Application Performance
APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
Monitor end-to-end web transactions and take corrective actions now
Troubleshoot faster and improve end-user experience. Signup Now!
http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140
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