Hello,
Most packets you received (Destination MAC=01:80:c2:00:00:0e) are LLDP
packets which is used for link discovery.
Packets with Destination MAC prefix: 33:33:xx:xx:xx:xx are IPv6 multicast
packets, generated by hosts in your mininet. This is okay for your lab and
you can just ignore it.
2015-01-30 11:23 GMT+08:00 Xuchenhui <[email protected]>:
> Hi，
>
> I try to write function to get topology info in simple_switch.py,but I
> receive a lot of packet in messages when I start ryu controller.
>
> If I run "ryu-manager simple_switch.py ",the controller is run
> normally,but I can't discover link info.And if run "ryu-manager
> --observe-links simple_switch.py",I will receive a lot of packet in
> messages. I don't know why.
>
> sudo mn --controller=remote --topo linear,2
>
> Add function in simple_simple_switch.py is :
>
> @set_ev_cls(event.EventSwitchEnter)
> def get_topology(self,ev):
> switch_list=get_switch(self.topology_api_app,None)
> switches=[switch.dp.id for switch in switch_list]
> links_list=get_link(self.topology_api_app,None)
>
> receive:
>
> packet in 2 02:d5:9e:b1:87:b7 01:80:c2:00:00:0e 2
> packet in 1 56:52:4e:dc:b5:b6 01:80:c2:00:00:0e 2
> packet in 1 56:52:4e:dc:b5:b6 01:80:c2:00:00:0e 2
> packet in 2 f6:a1:05:d0:db:73 33:33:00:00:00:16 1
> packet in 1 f6:a1:05:d0:db:73 33:33:00:00:00:16 2
> packet in 2 02:d5:9e:b1:87:b7 01:80:c2:00:00:0e 2
> packet in 1 56:52:4e:dc:b5:b6 01:80:c2:00:00:0e 2
> packet in 1 56:52:4e:dc:b5:b6 33:33:00:00:00:fb 2
> packet in 2 02:d5:9e:b1:87:b7 01:80:c2:00:00:0e 2
> packet in 1 56:52:4e:dc:b5:b6 01:80:c2:00:00:0e 2
> packet in 2 02:d5:9e:b1:87:b7 33:33:00:00:00:fb 2
> packet in 1 56:52:4e:dc:b5:b6 33:33:00:00:00:02 2
> packet in 2 02:d5:9e:b1:87:b7 01:80:c2:00:00:0e 2
> :
> :
>
>
> thanks
>
>
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>
--
Sincerely,
Wei-Li Tang
RD Engineer, Xinguard Inc.
------------------------------------------------------------------------------
Dive into the World of Parallel Programming. The Go Parallel Website,
sponsored by Intel and developed in partnership with Slashdot Media, is your
hub for all things parallel software development, from weekly thought
leadership blogs to news, videos, case studies, tutorials and more. Take a
look and join the conversation now. http://goparallel.sourceforge.net/
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