def start_migration():
print "Start migration..."
# bring down the interfaces at ovs-1
print "bring down the interfaces in ovs-1"
remote_cmd.ssh_run_cmd(ovs1_IP, "sudo sh interface-down.sh")
for connection in core.openflow._connections.values():
if connection.dpid == oldswitch_dpid:
connection.send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))
log.debug("Sent %i flow/port stats request(s)", len(core.openflow._connections))
def _handle_flow_ready(event):
if event.ofp.xid != 0x80000000:
return
log.debug("barrier msg received from %s: ", event.connection.dpid)
log.info("install drop rule for 1s")
_drop(1, event.connection, 1)
_drop(1, event.connection, 2)
# bring up the interfaces at ovs-2
print "bring up the interfaces in ovs-2"
remote_cmd.ssh_run_cmd(ovs2_IP, "sudo sh interface-up.sh")
def start_migration():
log.info("Start migration...")
global start_time
start_time = time.time()
log.info('move ovs1')
log.info('bring down the interfaces in ovs1')
remote_cmd.ssh_run_cmd(ovs1_IP, 'sudo ifconfig eth2 down;sudo ifconfig eth3 down')
log.info('request flow tables in ovs-1')
for connection in core.openflow._connections.values():
if connection.dpid == ovs1_dpid:
_request_flow_info(connection)
def start_migration():
print "Start migration..."
# bring down the interfaces at ovs-1
print 'bring down the interfaces in ovs-1'
remote_cmd.ssh_run_cmd(ovs1_IP,'sudo sh interface-down.sh')
log.info("install drop rule for 1s")
for connection in core.openflow._connections.values():
if connection.dpid == newswitch_dpid:
_drop(1, connection, 1)
_drop(1, connection, 2)
# bring up the interfaces at ovs-2
print 'bring up the interfaces in ovs-2'
remote_cmd.ssh_run_cmd(ovs2_IP,'sudo sh interface-up.sh')
def _exp_prep():
# bring up the interfaces at ovs-1 and ovs-3
print 'bring up the interfaces in ovs-1 and ovs-3'
remote_cmd.ssh_run_cmd(ovs1_IP,'sudo sh interface-up.sh')
remote_cmd.ssh_run_cmd(ovs3_IP,'sudo sh interface-up.sh')
# bring down the interfaces at ovs-4 and ovs-6
print 'bring down the interfaces in ovs-4 and ovs-6'
remote_cmd.ssh_run_cmd(ovs4_IP,'sudo sh interface-down.sh')
remote_cmd.ssh_run_cmd(ovs6_IP,'sudo sh interface-down.sh')
def _handle_flow_ready(event):
if event.ofp.xid != 0x80000000:
return
log.debug("barrier msg received from %s: ", event.connection.dpid)
global barrier_count
barrier_count = barrier_count+1
if barrier_count == 3:
log.info("install drop rule for 1s")
for connection in core.openflow._connections.values():
if connection.dpid == ovs4_dpid or connection.dpid == ovs6_dpid:
_drop(4, connection, 1)
_drop(4, connection, 2)
# bring down the interfaces at ovs-1 and ovs-3
print 'bring down the interfaces in ovs-1'
remote_cmd.ssh_run_cmd(ovs1_IP,'sudo sh interface-down.sh')
remote_cmd.ssh_run_cmd(ovs3_IP,'sudo sh interface-down.sh')
# bring up the interfaces at ovs-4 and ovs-6
print 'bring up the interfaces in ovs-4 and ovs-6'
_threading_run_cmd(ovs4_IP,'sudo sh interface-up.sh')
_threading_run_cmd(ovs6_IP,'sudo sh interface-up.sh')
def start_migration():
print "Start migration..."
# bring down the interfaces at ovs-1 and ovs-3
print 'bring down the interfaces in ovs-1'
remote_cmd.ssh_run_cmd(ovs1_IP,'sudo sh interface-down.sh')
remote_cmd.ssh_run_cmd(ovs3_IP,'sudo sh interface-down.sh')
log.info("install drop rule for 1s")
for connection in core.openflow._connections.values():
if connection.dpid == ovs4_dpid or connection.dpid == ovs6_dpid:
print connection.dpid
_drop(2, connection, 1)
_drop(2, connection, 2)
#_drop(2, connection, 3)
print 'bring up the interfaces in ovs-4 and ovs-6'
remote_cmd.ssh_run_cmd(ovs4_IP,'sudo sh interface-up.sh')
remote_cmd.ssh_run_cmd(ovs6_IP,'sudo sh interface-up.sh')
def _handle_flow_ready(event):
if event.ofp.xid != 0x80000000:
return
log.debug("barrier msg received from %s: ", event.connection.dpid)
if event.connection.dpid == ovs1_dpid:
log.info('bring up tunnel interfaces in ovs-1 and ovs-4')
remote_cmd.ssh_run_cmd(ovs1_IP, 'sudo ifconfig eth1 up')
remote_cmd.ssh_run_cmd(ovs4_IP, 'sudo ifconfig eth1 up')
log.info('redirect at gateway 1 and 2 to vn2')
for connection in core.openflow._connections.values():
if connection.dpid == g1_dpid:
_gw_to_vn(connection, 1, 3, 2)
elif connection.dpid == g2_dpid:
_gw_to_vn(connection, 1, 3, 2)
log.info('movs ovs-2')
log.debug('bring down interface in ovs-2')
remote_cmd.ssh_run_cmd(ovs2_IP,'sudo ifconfig eth2 down')
log.info('request flow tables in ovs2')
for connection in core.openflow._connections.values():
if connection.dpid == ovs2_dpid:
_request_flow_info(connection)
elif event.connection.dpid == ovs2_dpid:
log.info('bring up the interfaces in ovs-2 and ovs-5')
remote_cmd.ssh_run_cmd(ovs2_IP,'sudo ifconfig eth1 up')
remote_cmd.ssh_run_cmd(ovs5_IP,'sudo ifconfig eth1 up')
log.info('bring down the interaces in ovs-4')
#remote_cmd.ssh_run_cmd(ovs4_IP,'sudo ifconfig eth1 down')
log.info('move ovs-3')
log.debug('bring down the interfaces on ovs-3')
remote_cmd.ssh_run_cmd(ovs3_IP,'sudo ifconfig eth1 down')
log.info('request flow tables on ovs3')
for connection in core.openflow._connections.values():
if connection.dpid == ovs3_dpid:
_request_flow_info(connection)
elif event.connection.dpid == ovs3_dpid:
log.info('bring down the interaces in ovs-5')
#remote_cmd.ssh_run_cmd(ovs4_IP,'sudo ifconfig eth1 down')
log.info('redirect at gateway 3 to vn2')
for connection in core.openflow._connections.values():
if connection.dpid == g3_dpid:
_gw_to_vn(connection, 1, 3, 2)
log.info('migration finished')
global start_time
migration_time = time.time() - start_time
log.info("%s seconds", migration_time)
def _dump_flow(host, cmd):
remote_cmd.ssh_run_cmd(host, cmd)
def _config_sw_interface():
print 'bring down interfaces to tunnel switch on vn-1'
remote_cmd.ssh_run_cmd(ovs1_IP, 'sudo ifconfig eth1 down;sudo ifconfig eth2 up;sudo ifconfig eth3 up')
remote_cmd.ssh_run_cmd(ovs2_IP, 'sudo ifconfig eth1 down;sudo ifconfig eth2 up')
remote_cmd.ssh_run_cmd(ovs3_IP, 'sudo ifconfig eth2 down;sudo ifconfig eth1 up')
print 'bring down interfaces to tunnel switch on vn-2'
remote_cmd.ssh_run_cmd(ovs4_IP, 'sudo ifconfig eth1 down')
remote_cmd.ssh_run_cmd(ovs5_IP, 'sudo ifconfig eth1 down')
remote_cmd.ssh_run_cmd(ovs6_IP, 'sudo ifconfig eth2 down')
import remote_cmd
import time
def _write_to_log(log_file_dir, data):
if log_file_dir == '':
return
target = open(log_file_dir, 'a')
target.write(str(data))
target.write('\n')
target.close()
gw_1 = '128.163.232.71'
for i in range(0, 50):
start_time = time.time()
cmd = 'sudo python ssh_cmd.py ' + str(start_time)
remote_cmd.ssh_run_cmd(gw_1, cmd)
print("--- %s seconds ---" % (time.time() - start_time))
_write_to_log('time.log', "%s" % (time.time() - start_time))
def _iperf(IP, cmd):
print 'start iperf'
remote_cmd.ssh_run_cmd(IP, cmd)
