Hi,
I'm running into a problem that should not be happening. According to
the ovs-dpctl manpage, a single machine may host up to 256 datapaths
(numbered 0 to 255).
I'm successively creating a switch and specifying the same controller
for each of them. In a nutshell:
for n in nodes: # length(nodes) = 100
command_create = 'ovs-vsctl add-br sw%s' %(n)
execute(command_create)
command_set = 'ovs-vsctl set-controller sw%s tcp:127.0.0.1' %(n)
execute(command_set)
Syslog does not report anything out of ordinary (ovs-appctl vlog/set
ANY:ANY:dbg):
...
[84876.575065] device sw70 entered promiscuous mode
[84878.019359] device sw79 entered promiscuous mode
[84879.115090] device sw78 entered promiscuous mode
However, on the controller side, only 50 switches end up registering
with the controller no matter what I do. If I remove one of the
connected switches, a new (51th) switch instantiates a connection
towards the controller.
It seems as if there is an artificial limit enforced somewhere, but I
have no idea where it is and what might be causing it.
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