def loadbalancer(datarate,Balancer,chain):
if Balancer['type']=='min':
if datarate<float(Balancer['threshhold']):
for flow_delete in Balancer['Delete flows']:
delete_flow(flow_finder(flow_delete))
for flow_add in Balancer['Add flows']:
add_flow(flow_finder(flow_add))
return 'used'
else:
return ''
elif Balancer['type']=='max':
if datarate>float(Balancer['threshhold']):
print '>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>'
print '[LB Info]'+ctime()
print 'Load balancer triggered:'+' Chain- '+chain+' Rule- '+Balancer['balancerName']
for flow_delete in Balancer['Delete flows']:
delete_flow(flow_finder(flow_delete))
for flow_add in Balancer['Add flows']:
add_flow(flow_finder(flow_add))
return 'used'
else:
return ''
def loadbalancer(datarate, Balancer, chain):
if Balancer['type'] == 'min':
if datarate < float(Balancer['threshhold']):
for flow_delete in Balancer['Delete flows']:
delete_flow(flow_finder(flow_delete))
for flow_add in Balancer['Add flows']:
add_flow(flow_finder(flow_add))
return 'used'
else:
return ''
elif Balancer['type'] == 'max':
if datarate > float(Balancer['threshhold']):
print '>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>'
print '[LB Info]' + ctime()
print 'Load balancer triggered:' + ' Chain- ' + chain + ' Rule- ' + Balancer[
'balancerName']
for flow_delete in Balancer['Delete flows']:
delete_flow(flow_finder(flow_delete))
for flow_add in Balancer['Add flows']:
add_flow(flow_finder(flow_add))
return 'used'
else:
return ''
def recovery_manager(tailNodeConnector, headNodeConnector, reds):
# search if any redundancy rules hit
for red in reds:
if tailNodeConnector == red["tailNodeConnector"]:
if headNodeConnector == red["headNodeConnector"]:
print "A previous failed link recovered:", red["redundancy name"]
for flow_add in red["Add flows"]:
delete_flow(flow_finder(flow_add))
for flow_delete in red["Delete flows"]:
add_flow(flow_finder(flow_delete))
def recovery_manager(tailNodeConnector, headNodeConnector, reds):
#search if any redundancy rules hit
for red in reds:
if tailNodeConnector == red['tailNodeConnector']:
if headNodeConnector == red['headNodeConnector']:
print 'A previous failed link recovered:', red[
'redundancy name']
for flow_add in red['Add flows']:
delete_flow(flow_finder(flow_add))
for flow_delete in red['Delete flows']:
add_flow(flow_finder(flow_delete))
def redundancy_manager(tailNodeConnector, headNodeConnector, reds):
#search if any redundancy rules hit
for red in reds:
if tailNodeConnector == red['tailNodeConnector']:
if headNodeConnector == red['headNodeConnector']:
print 'redundancy activated:', red['redundancy name']
for flow_delete in red['Delete flows']:
delete_flow(flow_finder(flow_delete))
delete_flow(flow_finder(red['Add flows'][0]))
for flow_add in red['Add flows']:
add_flow(flow_finder(flow_add))
def redundancy_manager(tailNodeConnector,headNodeConnector,reds):
#search if any redundancy rules hit
for red in reds:
if tailNodeConnector==red['tailNodeConnector']:
if headNodeConnector==red['headNodeConnector']:
print 'redundancy activated:',red['redundancy name']
for flow_delete in red['Delete flows']:
delete_flow(flow_finder(flow_delete))
delete_flow(flow_finder(red['Add flows'][0]))
for flow_add in red['Add flows']:
add_flow(flow_finder(flow_add))
def loadbalancer(datarate,Balancer):
if Balancer['type']=='min':
if datarate<float(Balancer['threshhold']):
for flow_delete in red['Delete flows']:
delete_flow(flow_finder(flow_delete))
for flow_add in red['Add flows']:
add_flow(flow_finder(flow_add))
return 'used'
else:
return ''
elif Balancer['type']=='max':
if datarate>float(Balancer['threshhold']):
print 'lb truggered'
for flow_add in red['Add flows']:
add_flow_tcp(flow_finder(flow_add))
return 'used'
else:
return ''
def flow_adder():
print '**********************************************************'
print '* *'
print '* Add the default flows *'
print '* *'
print '**********************************************************'
starttime = time()
input = open('flowtable.txt', 'r')
input.readline()
success_counter = 0
fail_counter = 0
while 1:
line = input.readline()
if not line:
break
formated_flow = extract_flow(line)
#if the flow is defaultly inactive, turn off the flow
if formated_flow['Status'] == '1':
result = add_flow(formated_flow)
sleep(0.2)
if result < 400:
success_counter += 1
else:
fail_counter += 1
print ''
print 'Summary'
print '=========================================================='
print 'Total number of flow: ' + str(success_counter + fail_counter)
print 'Succeed: ' + str(success_counter)
print 'Failed: ' + str(fail_counter)
print 'For more Info, please check the log.'
print '----------------------------------------------------------'
input.close()
endtime = time()
print 'Finished in ' + '%.2f' % float(endtime - starttime) + ' seconds'
return str(success_counter) + ' Primary flow added ' + str(
18 - success_counter) + ' failed'
print '=========================================================='
def flow_adder():
print 'Reading flow conf and assign flow...'
print '=========================================='
starttime=datetime.datetime.now()
input = open('flowtable.txt', 'r')
input.readline()
success_counter=0
fail_counter=0
while 1:
line=input.readline()
if not line:
break
formated_flow=extract_flow(line)
print formated_flow
#if the flow is defaultly inactive, turn off the flow
if formated_flow['Status']=='1':
result=add_flow(formated_flow)
if result<400:
success_counter+=1
else:
fail_counter+=1
print 'Flow assign done!'
print '=========================================='
print 'Total number of flow: '+str(success_counter+fail_counter)
print 'Succeed: '+str(success_counter)
print 'Failed: '+str(fail_counter)
print 'For more Info, please check the log.'
input.close()
endtime=datetime.datetime.now()
print 'Finished in '+str((endtime-starttime))+'seconds'
return str(success_counter)+' Primary flow added '+str(18-success_counter)+' failed'
def flow_adder():
print 'Reading flow conf and assign flow...'
print '=========================================='
starttime = datetime.datetime.now()
input = open('flowtable.txt', 'r')
input.readline()
success_counter = 0
fail_counter = 0
while 1:
line = input.readline()
if not line:
break
formated_flow = extract_flow(line)
print formated_flow
#if the flow is defaultly inactive, turn off the flow
if formated_flow['Status'] == '1':
result = add_flow(formated_flow)
if result < 400:
success_counter += 1
else:
fail_counter += 1
print 'Flow assign done!'
print '=========================================='
print 'Total number of flow: ' + str(success_counter + fail_counter)
print 'Succeed: ' + str(success_counter)
print 'Failed: ' + str(fail_counter)
print 'For more Info, please check the log.'
input.close()
endtime = datetime.datetime.now()
print 'Finished in ' + str((endtime - starttime)) + 'seconds'
return str(success_counter) + ' Primary flow added ' + str(
18 - success_counter) + ' failed'
def redundancy_manager(tailNodeConnector,headNodeConnector,reds,red_status):
#search if any redundancy rules hit
for red in reds:
if tailNodeConnector==red['tailNodeConnector']:
if headNodeConnector==red['headNodeConnector']:
if red['depend']!='self':
if red_status[red['depend']]=='active':
print '[Service Info]'+ctime()
print 'Redundancy triggered:',red['redundancy name']
for red_d in reds:
if red_d['redundancy name']==red['depend']:
for flow_add in red['Add flows']:
delete_flow(flow_finder(flow_add))
for flow_delete in red['Delete flows']:
add_flow(flow_finder(flow_delete))
for flow_delete in red['Delete flows']:
delete_flow(flow_finder(flow_delete))
delete_flow(flow_finder(red['Add flows'][0]))
for flow_add in red['Add flows']:
add_flow(flow_finder(flow_add))
red_status[red['redundancy name']]='active'
break
elif red['depend']=='self':
print '[Service Info]'+ctime()
print 'Redundancy triggered:',red['redundancy name']
for flow_delete in red['Delete flows']:
delete_flow(flow_finder(flow_delete))
delete_flow(flow_finder(red['Add flows'][0]))
for flow_add in red['Add flows']:
add_flow(flow_finder(flow_add))
red_status[red['redundancy name']]='active'
return red_status
def redundancy_manager(tailNodeConnector, headNodeConnector, reds, red_status):
#search if any redundancy rules hit
for red in reds:
if tailNodeConnector == red['tailNodeConnector']:
if headNodeConnector == red['headNodeConnector']:
if red['depend'] != 'self':
if red_status[red['depend']] == 'active':
print '[Service Info]' + ctime()
print 'Redundancy triggered:', red['redundancy name']
for red_d in reds:
if red_d['redundancy name'] == red['depend']:
for flow_add in red['Add flows']:
delete_flow(flow_finder(flow_add))
for flow_delete in red['Delete flows']:
add_flow(flow_finder(flow_delete))
for flow_delete in red['Delete flows']:
delete_flow(flow_finder(flow_delete))
delete_flow(flow_finder(red['Add flows'][0]))
for flow_add in red['Add flows']:
add_flow(flow_finder(flow_add))
red_status[red['redundancy name']] = 'active'
break
elif red['depend'] == 'self':
print '[Service Info]' + ctime()
print 'Redundancy triggered:', red['redundancy name']
for flow_delete in red['Delete flows']:
delete_flow(flow_finder(flow_delete))
delete_flow(flow_finder(red['Add flows'][0]))
for flow_add in red['Add flows']:
add_flow(flow_finder(flow_add))
red_status[red['redundancy name']] = 'active'
return red_status