[pox-dev] Importing components in POX at run time

[hansinie vitharana]

I saw the post relavant to "Changing the POX component without restarting
POX controller" and it was very useful to me also..

I am also trying to change the functions on run time and I followed the
solution that was given by Murphy

./pox.py forwarding.l2_multi openflow.discovery py

This will load up l2_multi and then give a Python interpreter.  You
can swap the functions from the interpreter...
POX> import pox.forwarding.l2_multi as l2m
POX> shortest = l2m._get_path
POX> import ext.longestpath
POX> l2m._get_path = ext.longestpath._get_path

You can switch back to shortest again by doing:
POX> l2m._get_path = shortest

After giving above commands, and after waiting for some to flow tables
to be get clear, when I try to ping between hosts, it fails..

In the POX terminal it gives the message as
"WARNING:forwarding.l2_multi:Can't get from 96:bb:06:61:71:8d to
ae:b8:16:4d:a3:6b"

The Solution has mentioned about "send a flow_mod to each connection
to delete them (iterate over core.openflow.connections)", but I am not
sure about how to do this..

Please be kind enough to show me where I am going wrong and how to
correct this error..
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