def get_cool_rib(self):
# from ryu.services.protocols.bgp.api.base import call
# show = {
# 'params': ['rib', 'ipv4'],
# 'format': format
# }
#
# call('operator.show', **show)
from ryu.services.protocols.bgp.operator.internal_api import InternalApi
INTERNAL_API = InternalApi() #_init_log_handler())
# table_manager = self.get_core_service().table_manager
# gtable = table_manager.get_global_table_by_route_family(rf)
return INTERNAL_API.get_single_rib_routes('ipv4')
def update_networks_from_rib(self):
from ryu.services.protocols.bgp.operator.internal_api import InternalApi
INTERNAL_API = InternalApi()
rib_bgp = INTERNAL_API.get_single_rib_routes('ipv4')
print rib_bgp
to_delete = {}
for route in rib_bgp:
prefix = route['prefix']
paths = route['paths']
best_hop = None
list_of_next_hops = []
for index, path in enumerate(paths):
aspath = path['aspath']
if aspath == []:
continue
nexthop = path['nexthop']
list_of_next_hops.append(nexthop)
is_best_route = path['best']
if is_best_route:
best_hop = nexthop
ip = IPNetwork(prefix) # ("172.16.0.0/24")
ip_network = str(ip.network)
# mask_value = ip.prefixlen
# netmask = ip.netmask
#print prefix,'\n\n\n'
if ip_network not in self.networks:
switch = self.neighbor[nexthop]['switch']
port = self.neighbor[nexthop]['port']
controller_ip = None
if aspath == []: # aspath = [] means that this prefix is local
controller_ip = self.local_networks[prefix][
'controller_ip']
else:
controller_ip = self.hosts['neighbors'][nexthop][
'controller_ip']
self.networks[ip_network] = {
'mask': str(ip.netmask),
'controller_ip': controller_ip,
'next_hop': {
nexthop: {
'switch': switch,
'port': port,
'bandwidth': 0,
'congested': 0
}
},
'as_path': aspath,
'best_hop': nexthop
}
else:
best_next_hop = self.networks[ip_network]['best_hop']
if best_hop != best_next_hop:
self.networks[ip_network]['next_hop'][
'best_hop'] = best_hop
if nexthop not in self.networks[ip_network]['next_hop']:
switch = self.neighbor[nexthop]['switch']
port = self.neighbor[nexthop]['port']
controller_ip = None
if aspath == []: # aspath = [] means that this prefix is local
controller_ip = self.local_networks[prefix][
'controller_ip']
else:
controller_ip = self.hosts['neighbors'][nexthop][
'controller_ip']
self.networks[ip_network]['next_hop'][nexthop] = {
'switch': switch,
'port': port,
'bandwidth': 0,
'congested': 0
}
else:
#I dont know if it is necessary to change
pass
self.networks[ip_network]['as_path'] = aspath
ip = IPNetwork(prefix) # ("172.16.0.0/24")
ip_network = str(ip.network)
if ip_network in self.networks:
for nexthop in self.networks[ip_network]['next_hop']:
if nexthop not in list_of_next_hops:
del self.networks[ip_network]['next_hop'][nexthop]