def getgriport(hwswitch,core,griport):
"""
In the following logical topology <Host> - <HwSwitch> - <Core Router>, the OSCARS circuits ends onto the
port on the core router connected to the HwSwitch. This function returns the port on the HwSwitch that
is connected to the the core router when the OSCARS circuit terminates.
"""
hwswitchname = hwswitch.name
corename = core.name
links = getlinks(corename, hwswitchname)
if links == None or len(links) == 0:
print "No links from",corename,"to",hwswitchname
return False
corelink = None
for link in links:
(node,port) = linkednode (link, hwswitchname)
if port != None and port == griport:
# found the link between HwSwith and Core that ends to the OSCARS circuit.
corelink = link
break
(node,hwport_tocore) = linkednode (corelink,corename)
return hwport_tocore
def connect (localpop,
remotepop,
host,
remotehost,
gri,
hostvlan,
remotehostvlan,
meter=3,
host_rewitemac = None):
hostname = host['name']
remotehostname = remotehost['name']
core = localpop.props['coreRouter']
corename = core.name
(corename,coredom,coreport,corevlan) = getgrinode(gri,corename)
remotecore = remotepop.props['coreRouter']
remotecorename = remotecore.name
(remotecorename,remotecoredom,remotecoreport,remotecorevlan) = getgrinode(gri,remotecorename)
datapath = getdatapaths(host)[0] # Assumes the first datapath
hostport = datapath['name']
remotedatapath = getdatapaths(remotehost)[0] # Assumes the first datapath
remotehostport = remotedatapath['name']
hwswitch = localpop.props['hwSwitch']
hwswitchname = hwswitch.name
remotehwswitch = remotepop.props['hwSwitch']
remotehwswitchname = remotehwswitch.name
remotelinks = getlinks(remotecorename, remotehwswitchname)
# Find hwswith/port - core/port
hwport_tocore = getgriport(hwswitch,core,coreport)
# Find remotehwswith/port - remotecore/port
remotehwport_tocore = getgriport(remotehwswitch,remotecore,remotecoreport)
# Find the port on the HwSwitch that is connected to the host's port
links = getlinks(hostname, hwswitchname)
if links == None or len(links) == 0:
print "No links from",hostname,"to",hwswitchname
return False
hostlink = None
for link in links:
(node,port) = linkednode (link, hwswitchname)
if port != None and port == hostport:
# found the link
hostlink = link
break
(node,hwport_tohost) = linkednode ( hostlink,hostname)
connectdataplane(hwswitch,
host,
hostport,
hostvlan,
hwswitch,
hwport_tohost,
hwport_tocore,
corevlan,
gri,
meter,
host_rewitemac = host_rewitemac)
# Find the port on the remote HwSwitch that is connected to the remote host's port
links = getlinks(remotehostname, remotehwswitchname)
if links == None or len(links) == 0:
print "No links from",remotehostname,"to",remotehwswitchname
return False
hostlink = None
for link in links:
(node,port) = linkednode (link, remotehwswitchname)
if port != None and port == remotehostport:
# found the link
hostlink = link
break
(node,remotehwport_tohost) = linkednode ( hostlink,remotehostname)
connectremoteplane(switch = remotehwswitch,
host = host,
hostvlan = hostvlan,
remotehost_port = remotehwport_tohost,
remotehost = remotehost,
remotehost_vlan = remotehostvlan,
remotehwport_tocore =remotehwport_tocore,
corevlan = corevlan,
gri = gri,
meter = meter,
host_rewitemac = host_rewitemac)
return True