Hi every one,
Apart from aggregate statistics I want to retrieve flows from switches.
To do that I am running my component along with monitoring component in the
command line.
In my component I have the following code:
# to send flow stats request
def send_flow_stats_request():
global xid
flow = of.ofp_match()
flow.wildcards = of.OFPFW_ALL
flow.dl_source = NONE
flow.dl_type = ethernet.IP_TYPE
inst.Monitoring.send_flow_stats_request(dpid,flows,0xff,xid)
xid +=1
# to handle flow stats in
def flow_stats_in_handler(dpid, flows, more, xid):
print"\n^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Flow statistics report
^^^^^^^^^^^^^"
print "from %s: size %s:" % dpid,str(flows)
print "number of flow %s: " % flows['flow_count']
#data =0;
#ELEPHANT_FLOW_THRESHOLD = 500
for i, flw in flows:
num_bytes = flw['byte_count']
num_packets = flw['packet_count']
print "Byte -size: %s , pakcet size: %s "%
longlong_to_octstr(num_byte)
if num_bytes > ELEPHANT_FLOW_THRESHOLD:
inport = flows[i]['match']['in_port']
flow = flows[i]['match']
actions = []
#do sth with the flow here
I have also set appropriate call back timers.
So the question is I am not getting the flows. I am able to get aggregate
flow stats and port stats with the same approach.
can any one please tell me where I did the mistake.
Also which component is printing the following message:
[(XEROX CORPORATION):00:00:0c>01:23:20:00:00:01:LLDP]<chassis
ID:64:70:69:64:3a:63><port ID:00:06><ttl:120><tlv end>
when I run my component a bunch of this text is displayed in the screen.
Sincerely,
--
Baraki H. Abay
Department of Math and Computer science
North Carolina Central University
Durham, 27707 NC
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