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

66 lines
1.4 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
PODS = 4
hosts_iter = CounterIterator()
switch_iter = CounterIterator()
def reset_iters():
global hosts_iter
global switch_iter
hosts_iter = CounterIterator()
switch_iter = CounterIterator()
def sew_rows(r1, r2, bw=None):
return [(i, j, bw) for i in r1 for j in r2]
def create_pod():
this_hosts = []
this_switches = []
this_links = []
sw = f's{next(switch_iter)}'
hosts = [f'h{next(hosts_iter)}' for _ in range(PODS)]
this_hosts += hosts
this_switches += [sw]
this_links += sew_rows([sw], hosts, SPEED)
return this_hosts, this_switches, this_links
def create_topo():
this_hosts = []
this_switches = []
this_links = []
spines = [f's{next(switch_iter)}' for _ in range(PODS)]
stategic = []
for i in range(PODS):
h, s, l = create_pod()
this_hosts += h
this_switches += s
this_links += l
stategic.append(h[-PODS:])
this_links += [(i[0], i[1], SPEED) for l in stategic for i in zip(spines, l)]
this_switches += spines
return this_hosts, this_switches, this_links
def main(fn: str = 'bcube'):
reset_iters()
topo = create_topo()
reset_iters()
Path(f'{fn}.json').write_text(json.dumps(topo))
renderer(fn)
if __name__ == '__main__':
main()