80 lines
1.9 KiB
Python
Executable File
80 lines
1.9 KiB
Python
Executable File
#!/usr/bin/env python3
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# -*- encoding: utf-8 -*-
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import json
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from pathlib import Path
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from counteriter import CounterIterator
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from toporender import main as renderer
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SPEED = 1
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CORE = 3
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PODS = 4
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LEAFS = 2
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hosts_iter = CounterIterator()
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switch_iter = CounterIterator()
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def reset_iters():
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global hosts_iter
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global switch_iter
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hosts_iter = CounterIterator()
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switch_iter = CounterIterator()
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def sew_rows(I, J, bw=None):
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return [(i, j, bw) for i in I for j in J]
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def create_edge_layer(root):
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this_hosts = []
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this_switches = []
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this_links = []
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for _ in range(LEAFS):
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this_hosts.append(f'h{next(hosts_iter)}')
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this_links.append((root, this_hosts[-1], SPEED))
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return this_hosts, this_switches, this_links
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def create_aggregation_layer():
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this_hosts = []
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this_switches = []
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this_links = []
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outer_sws = [f's{next(switch_iter)}' for i in range(LEAFS)]
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inner_sws = [f's{next(switch_iter)}' for i in range(LEAFS)]
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this_links+=sew_rows(outer_sws, inner_sws, SPEED)
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for i in inner_sws:
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h,s,l = create_edge_layer(i)
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this_hosts += h
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this_switches += s
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this_links += l
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this_switches += outer_sws
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this_switches += inner_sws
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return this_hosts, this_switches, this_links
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def create_topo():
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this_hosts = []
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this_switches = []
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this_links = []
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cores = [f's{next(switch_iter)}' for i in range(CORE)]
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pods_inner_sws = []
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for i in range(PODS):
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h, s, l = create_aggregation_layer()
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this_hosts += h
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this_switches += s
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this_links += l
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pods_inner_sws += s[:-LEAFS]
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this_links += sew_rows(pods_inner_sws, cores, SPEED)
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this_switches += cores
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return this_hosts, this_switches, this_links
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def main(fn: str = 'fattree'):
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reset_iters()
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topo = create_topo()
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reset_iters()
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Path(f'{fn}.json').write_text(json.dumps(topo))
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renderer(fn)
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if __name__ == '__main__':
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main()
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