def cdp_neighbors_json(device_name):
response = odl_http_get(url_neighbours, {'node-id': device_name},
'application/json',
expected_status_code=(200, 404))
j = json_loads(response.text)
container = j["cdp"]["nodes"]["node"][0]
print(json_dumps(container, indent=2))
if "neighbors" in container:
neighbors = container["neighbors"]
print(len(neighbors))
print(json_dumps(neighbors, indent=2))
def cdp_neighbors_json(device_name):
response = odl_http_get(url_neighbours.format(**{'node-id': quote_plus(device_name), }),
'application/json',
expected_status_code=(200, 404)
)
j = json_loads(response.text)
container = j["cdp"]["nodes"]["node"][0]
print(json_dumps(container, indent=2))
if "neighbors" in container:
neighbors = container["neighbors"]
print(len(neighbors))
print(json_dumps(neighbors, indent=2))
def findneighbor(device_name):
'''
Description :
This function retrieve the cdp information for the specific device through
restconf API. It then parse the data and store the information in global
var like nodes and edges.
'''
#get the result from cdp url for device_name
response = odl_http_get(
url_neighbours.format(**{
'node-id': quote_plus(device_name),
}),
'application/json',
expected_status_code=(200, 404))
if response.status_code == 400:
print(_BUG_CHECK % 'This interface is not provided!')
return None
j = json_loads(response.text)
#add the node into the nodes, we store the device_id
nodes.append(dict(nodename=devname2devid(device_name)))
container = j["cdp"]["nodes"]["node"][0]
#print(json_dumps(container, indent=2))
if "neighbors" in container:
neighbors = container["neighbors"]
if 'summaries' in neighbors:
summaries = neighbors['summaries']['summary']
#now we get the list of summarirs, each summary is a {} dict type
for summary in summaries:
#here we skip the mgt interface
if 'MgmtEth' in summary['interface-name']:
continue
#add the data of an edge
dict_item = {'localnode':devname2devid(device_name),\
'remotenode':summary['device-id'],\
'localifname':summary['interface-name'],\
'remoteifname':summary['cdp-neighbor'][0]['port-id']
}
#At first we have to set the interface's bandwidth to maxmium,
#in our design, we use available_bandwidth to implement the
#route calculate and bandwidth reserve.
if initial_flag == True:
dict_item['maxbandwidth'] = _MAXMIUM_BANDWIDTH
dict_item['available_bandwidth'] = _MAXMIUM_BANDWIDTH
# now we have to set the local network address and networkmask
netresult = interface_configuration(
devid2devname(dict_item['localnode']),
dict_item['localifname'])
# !!-.-!! here i can only accees the element by index even if the debugger tell me the data in it is address=10.0xxx, but
# it is not a dict. so can anyone help?
if netresult is not None:
dict_item['localaddr'] = netresult[3]
dict_item['localmask'] = netresult[4]
netresult = None
else:
print(
_BUG_CHECK %
'The interface of the local node is wrong, maybe the device is not mounted'
)
# now it is the remote address and networkmask
netresult = interface_configuration(
devid2devname(dict_item['remotenode']),
dict_item['remoteifname'])
if netresult is not None:
dict_item['remoteaddr'] = netresult[3]
dict_item['remotemask'] = netresult[4]
else:
print(
_BUG_CHECK %
'The interface of the remote node is wrong, maybe the device is not mounted'
)
edges.append(dict_item)
else:
print(_BUG_CHECK %
'The node has no neighbors or maybe the device is not mounted')
return None
def findneighbor(device_name):
'''
Description :
This function retrieve the cdp information for the specific device through
restconf API. It then parse the data and store the information in global
var like nodes and edges.
'''
#get the result from cdp url for device_name
response = odl_http_get(url_neighbours.format(**{'node-id': quote_plus(device_name), }),
'application/json',
expected_status_code=(200, 404)
)
if response.status_code == 400:
print(_BUG_CHECK %'This interface is not provided!')
return None
j = json_loads(response.text)
#add the node into the nodes, we store the device_id
nodes.append(dict(nodename=devname2devid(device_name)))
container = j["cdp"]["nodes"]["node"][0]
#print(json_dumps(container, indent=2))
if "neighbors" in container:
neighbors = container["neighbors"]
if 'summaries' in neighbors:
summaries = neighbors['summaries']['summary']
#now we get the list of summarirs, each summary is a {} dict type
for summary in summaries:
#here we skip the mgt interface
if 'MgmtEth' in summary['interface-name']:
continue
#add the data of an edge
dict_item = {'localnode':devname2devid(device_name),\
'remotenode':summary['device-id'],\
'localifname':summary['interface-name'],\
'remoteifname':summary['cdp-neighbor'][0]['port-id']
}
#At first we have to set the interface's bandwidth to maxmium,
#in our design, we use available_bandwidth to implement the
#route calculate and bandwidth reserve.
if initial_flag == True :
dict_item['maxbandwidth'] = _MAXMIUM_BANDWIDTH
dict_item['available_bandwidth'] = _MAXMIUM_BANDWIDTH
# now we have to set the local network address and networkmask
netresult = interface_configuration(devid2devname(dict_item['localnode']), dict_item['localifname'])
# !!-.-!! here i can only accees the element by index even if the debugger tell me the data in it is address=10.0xxx, but
# it is not a dict. so can anyone help?
if netresult is not None :
dict_item['localaddr'] = netresult[3]
dict_item['localmask'] = netresult[4]
netresult = None
else :
print(_BUG_CHECK %'The interface of the local node is wrong, maybe the device is not mounted')
# now it is the remote address and networkmask
netresult = interface_configuration(devid2devname(dict_item['remotenode']), dict_item['remoteifname'])
if netresult is not None :
dict_item['remoteaddr'] = netresult[3]
dict_item['remotemask'] = netresult[4]
else :
print(_BUG_CHECK %'The interface of the remote node is wrong, maybe the device is not mounted')
edges.append(dict_item)
else :
print(_BUG_CHECK %'The node has no neighbors or maybe the device is not mounted')
return None
