diff --git a/mininet/topo.py b/mininet/topo.py index cae1c04a64f2a0cc34f97a7a608a3bfb7b7a33e4..cf0ec5b37cb05b5444c928b5848a5399f6842729 100644 --- a/mininet/topo.py +++ b/mininet/topo.py @@ -233,21 +233,32 @@ def __init__(self, k=2, **opts): class LinearTopo(Topo): "Linear topology of k switches, with one host per switch." - def __init__(self, k=2, **opts): + def __init__(self, k=2, j=1, **opts): """Init. - k: number of switches (and hosts) + k: number of switches + j: number of hosts per switch hconf: host configuration options lconf: link configuration options""" super(LinearTopo, self).__init__(**opts) self.k = k + self.j = j + + if j == 1: + genHostName = lambda i,j: 'h%s' % i + else: + digits = len(str(j-1)) + genHostName = lambda i,j: 'h%s%0*d' % (i,digits,j) lastSwitch = None for i in irange(1, k): - host = self.addHost('h%s' % i) switch = self.addSwitch('s%s' % i) - self.addLink( host, switch) + + for k in irange(0, j-1): + host = self.addHost(genHostName(i, k)) + self.addLink(host, switch) + if lastSwitch: self.addLink( switch, lastSwitch) lastSwitch = switch