def topo_draw():
impacts = spofs(gr1)
# gr1.remove_node('RST-BAK01')
changes = diff(gr1, gr2)
for key in impacts:
print key, impacts[key]
for key in changes:
print key, changes[key]
time_start = time.clock()
# draw(gr1, impacts, changes)
# draw(gr1, impacts, return_svg=True)
topo_entry = draw(gr1, impacts, save_svg=False, return_svg=True, return_graphml=True)
print topo_entry['graphml']
print topo_entry['svg']
# draw(gr1)
print "Topology drawing execution time:", time.clock() - time_start, "seconds"
def draw_isis(job, host, conn):
""""Use Exscript to login to a Cisco IOS router, get the IS-IS database,
and parse+analyze+draw the IS-IS topology."""
# host.name is provided by Exscript, returns name of current host
region = router_region[host.name]
conn.send("enable\r")
conn.app_authorize()
conn.execute('term len 0')
conn.execute('show isis database detail')
isis_db = conn.response
# Got the database, now parse it into a DiGraph
topo = isis_db_to_digraph(isis_db, region)
# Got topology DiGraph, now analyze it for potential SPOF impacts
impacts = spofs(topo)
# Got topology & SPOF impacts, now save the diagram (SVG) in the current
# working directory, and try to upload the topology XML data (SVG+GraphML)
# to MongoDB server
topo_entry = draw(topo, impacts, save_svg=True, return_svg=True, return_graphml=True)
topo_entry['region'] = region
topo_entry['timestamp'] = topo.graph['timestamp']
mongo_save(topo_entry)
# use conn.send to 'exit' because conn.execute waits for a normal
# prompt that will never come, and cause a script timeout error.
conn.send('exit')
def ana_spof():
time_start = time.clock()
impacts = spofs(gr1)
print "SPOF nodes:", impacts['spofs']
print "Impacted nodes:", impacts['isolated']
print "SPOF Analysis execution time:", time.clock() - time_start, "seconds"
