Hello,all:
I am newer in SDN and Ryu, I am trying to discovery switches and links
between switches, and I use the module ryu/topology/switches.py and
ryu/topology/dumper.py just as the ryu-del mailing list described
<http://sourceforge.net/p/ryu/mailman/ryu-devel/thread/[email protected]/>
:
1. Run mininet $ sudo mn --topo=tree,depth=2 --controller=remote
2. Run ryu-manager with topology module and event dumper
$ ./bin/ryu-manager --verbose --observe-links ryu/topology/switches.py
ryu/topology/dumper.py
However, here I get an ERROR:
Import Error: "cannot import name cfg"
Could anyone give me some iedas about this?
Thanks in advance!
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