destpath = [] # Store shortest path info in an array
orgId = []
destId = []
revDestId = []
orgWeight = []
destWeight = []
revDestWeight = []
ordNodeString = str(ordNode)
ordNodeString = ordNodeString[offset:]
ordNodeString = ordNodeString + endingString
ordNodeGraph = topo.getNode(ordNodeString)
# Compute paths forwards and backwards
firstShort = DijkstraShortestPath(graph, ordNodeGraph, destNodeGraph)
firstpath = firstShort.getPathEdgeList()
firstweight = firstShort.getPathLength()
secondShort = DijkstraShortestPath(graph, destNodeGraph, ordNodeGraph)
secondpath = secondShort.getPathEdgeList()
secondWeight = secondShort.getPathLength()
# Skip paths that give us a NoneType, but record into nonetype dictionary and increment counter
if firstpath == None:
Nonetypecounter += 1
# Create entry if not in dictionary, else increment value
nonetype[ordNodeString.encode("ascii")] = nonetype.get(
ordNodeString, 0) + 1
nonetype[destNodeString.encode("ascii")] = nonetype.get(
destNodeString, 0) + 1
continue
orgId = []
destId = []
revDestId = []
orgWeight = []
destWeight = []
revDestWeight = []
ordNodeString = str(ordNode)
ordNodeString = ordNodeString[offset:]
ordNodeString = ordNodeString + endingString
ordNodeGraph = topo.getNode(ordNodeString)
# Compute paths forwards and backwards
firstShort = DijkstraShortestPath(graph, ordNodeGraph, destNodeGraph)
firstpath = firstShort.getPathEdgeList()
firstweight = firstShort.getPathLength()
secondShort = DijkstraShortestPath(graph, destNodeGraph, ordNodeGraph)
secondpath = secondShort.getPathEdgeList()
secondWeight = secondShort.getPathLength()
# Skip paths that give us a NoneType, but record into nonetype dictionary and increment counter
if firstpath == None:
Nonetypecounter += 1
# Create entry if not in dictionary, else increment value
nonetype[ordNodeString.encode("ascii")] = nonetype.get(ordNodeString, 0) + 1
nonetype[destNodeString.encode("ascii")] = nonetype.get(destNodeString, 0) + 1
continue
if secondpath == None:
nonetype[ordNodeString.encode("ascii")] = nonetype.get(ordNodeString, 0) + 1
# Syntax error
print "Syntax error: path src@domain dst@domain"
print " example: path [email protected] [email protected]"
sys.exit()
topology = TopologyFactory.instance()
topo = topology.retrieveTopologyProvider("localLayer2")
graph = topo.getGraph(TopologyProvider.WeightType.TrafficEngineering)
nodes = topo.getNodes()
srcNode = topo.getNode(command_args[2])
dstNode = topo.getNode(command_args[3])
path = DijkstraShortestPath.findPathBetween(graph, srcNode, dstNode)
if path == None:
print "No path between " + srcNode.getId() + " and " + dstNode.getId()
sys.exit()
start = DateTime.now()
end = start.plusHours(2)
reserved = OSCARSReservations(topo).getReserved(start, end)
print "Start Node= " + srcNode.getId()
maxReservable = -1
for link in path:
node = topo.getNodeByLink(link.getId())
port = topo.getPortByLink(link.getId())
# Created by davidhua on 7/17/14.
#
# Run by calling viewtopo.py in netshell (No arguments); viewtopo.py [path] [source] [dest]; or viewtopo.py [bandwidth] [source] [dest].
topology = TopologyFactory.instance()
topo = topology.retrieveTopologyProvider("localLayer2")
command_args = sys.argv
if len(command_args) == 2:
graph = topo.getGraph(TopologyProvider.WeightType.TrafficEngineering)
viewer = GraphViewer(graph)
viewer.init()
elif len(command_args) == 5:
srcNode = topo.getNode(command_args[3]+"@es.net");
dstNode = topo.getNode(command_args[4]+"@es.net");
if command_args[2] == "path":
graph = topo.getGraph(TopologyProvider.WeightType.TrafficEngineering)
path = DijkstraShortestPath(graph, srcNode, dstNode)
thispath = path.getPath()
viewer = GraphViewer(thispath, graph)
elif command_args[2] == "bandwidth":
graph = topo.getGraph(TopologyProvider.WeightType.MaxBandwidth)
md = ModifiedDijkstra(graph, srcNode, dstNode)
maxBandwidth = md.getPath()
viewer = GraphViewer(maxBandwidth, graph)
viewer.init()
else:
sys.exit()
# Created by davidhua on 7/17/14.
#
# Run by calling viewtopo.py in netshell (No arguments); viewtopo.py [path] [source] [dest]; or viewtopo.py [bandwidth] [source] [dest].
topology = TopologyFactory.instance()
topo = topology.retrieveTopologyProvider("localLayer2")
command_args = sys.argv
if len(command_args) == 2:
graph = topo.getGraph(TopologyProvider.WeightType.TrafficEngineering)
viewer = GraphViewer(graph)
viewer.init()
elif len(command_args) == 5:
srcNode = topo.getNode(command_args[3] + "@es.net")
dstNode = topo.getNode(command_args[4] + "@es.net")
if command_args[2] == "path":
graph = topo.getGraph(TopologyProvider.WeightType.TrafficEngineering)
path = DijkstraShortestPath(graph, srcNode, dstNode)
thispath = path.getPath()
viewer = GraphViewer(thispath, graph)
elif command_args[2] == "bandwidth":
graph = topo.getGraph(TopologyProvider.WeightType.MaxBandwidth)
md = ModifiedDijkstra(graph, srcNode, dstNode)
maxBandwidth = md.getPath()
viewer = GraphViewer(maxBandwidth, graph)
viewer.init()
else:
sys.exit()
