mininet-n-ryu-routing-algor.../topocreatesimpletree.py

64 lines
1.5 KiB
Python
Executable File

#!/usr/bin/env python3
# -*- encoding: utf-8 -*-
import json
from pathlib import Path
from counteriter import CounterIterator
from toporender import main as renderer
SPEED = 1
LEVELS = 3
hosts_iter = CounterIterator()
switch_iter = CounterIterator()
def reset_iters():
global hosts_iter
global switch_iter
hosts_iter = CounterIterator()
switch_iter = CounterIterator()
def create_tree(root, levels_coming=0):
this_hosts = []
this_switches = []
this_links = []
for _ in range(2):
if levels_coming <= 0:
this_hosts.append(f'h{next(hosts_iter)}')
this_links.append((root, this_hosts[-1], SPEED))
else:
this_switches.append(f's{next(switch_iter)}')
this_links.append((root, this_switches[-1], SPEED))
h, s, l = create_tree(this_switches[-1], levels_coming-1)
this_hosts += h
this_switches += s
this_links += l
return this_hosts, this_switches, this_links
def create_topo():
this_hosts = []
this_switches = []
this_links = []
root = f's{next(switch_iter)}'
this_switches.append(root)
h, s, l = create_tree(root, LEVELS)
this_hosts += h
this_switches += s
this_links += l
return this_hosts, this_switches, this_links
def main(fn: str = 'simpletree'):
reset_iters()
topo = create_topo()
reset_iters()
Path(f'{fn}.json').write_text(json.dumps(topo))
renderer(fn)
if __name__ == '__main__':
main()