45 lines
1.5 KiB
Python
45 lines
1.5 KiB
Python
from core.topo import Topo
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class MpECMPSingleInterfaceTopo(Topo):
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def __init__(self, topoBuilder, parameterFile):
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super().__init__(topoBuilder, parameterFile)
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print("Hello ECMP topo")
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self.client = self.addHost(Topo.clientName)
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self.server = self.addHost(Topo.serverName)
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self.lswitch = self.addSwitch(Topo.switchNamePrefix + "0")
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self.rswitch = self.addSwitch(Topo.switchNamePrefix + "1")
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self.addLink( self.client, self.lswitch)
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self.addLink( self.server, self.rswitch)
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self.routers = []
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for l in self.topoParam.linkCharacteristics:
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self.routers.append(self.addOneRouterPerLink(l))
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print("added : " + self.routers[-1])
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self.addLink(self.lswitch, self.routers[-1])
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self.addLink(self.rswitch, self.routers[-1], **l.asDict())
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def addOneRouterPerLink(self, link):
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return self.addHost(Topo.routerNamePrefix +
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str(link.id))
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def __str__(self):
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s = "Single if ECMP like env\n"
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i = 0
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n = len(self.topoParam.linkCharacteristics)
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for p in self.topoParam.linkCharacteristics:
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if i == n // 2:
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if n % 2 == 0:
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s = s + "c---sw sw-----s\n"
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s = s + " |-----R-----|\n"
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else:
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s = s + "c---sw----R-----sw-----s\n"
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else:
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s = s + " |-----R-----|\n"
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i = i + 1
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return s
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