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STS doesn't work with POX's topo_proactive module #28

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colin-scott opened this issue May 12, 2014 · 1 comment
Open

STS doesn't work with POX's topo_proactive module #28

colin-scott opened this issue May 12, 2014 · 1 comment
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@colin-scott
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Something is wrong with the way we're processing Openflow messages, which causes topo_proactive to not install routes as expected. This particular problem be indicative of deeper problems in STS.

Details:

  • Need to set up STS hosts to use the IP addresses POX expects (configurable in config file)
  • It works on mininet with just ARP
  • Need to instrument our dart_pox to see what ofp packets are recieved
  • Maybe try ARP reply -> ICMP ping?

POX console output when running with STS:

POX 0.3.0 (dart) / Copyright 2011-2013 James McCauley, et al.
DEBUG:core:POX 0.3.0 (dart) going up...
DEBUG:core:Running on CPython (2.7.3/Sep 26 2012 21:51:14)
DEBUG:core:Platform is Linux-3.5.0-17-generic-x86_64-with-Ubuntu-12.10-quantal
INFO:core:POX 0.3.0 (dart) is up.
DEBUG:openflow.of_01:Listening on 0.0.0.0:6633
INFO:openflow.of_01:[None 1] closed
INFO:openflow.of_01:[None 2] Received packet <class 'pox.openflow.libopenflow_01.ofp_hello'>
INFO:openflow.of_01:[None 2] Received packet <class 'pox.openflow.libopenflow_01.ofp_features_reply'>
INFO:openflow.of_01:[00-00-00-00-00-03 2] Received packet <class 'pox.openflow.libopenflow_01.ofp_barrier_reply'>
INFO:openflow.of_01:[00-00-00-00-00-03 2] connected
DEBUG:openflow.discovery:Installing flow for 00-00-00-00-00-03
DEBUG:f.t_p.00-00-00-00-00-03:Connect [00-00-00-00-00-03 2]
DEBUG:f.t_p:Disabling flooding for 3 ports
INFO:openflow.of_01:[None 3] Received packet <class 'pox.openflow.libopenflow_01.ofp_hello'>
INFO:openflow.of_01:[None 3] Received packet <class 'pox.openflow.libopenflow_01.ofp_features_reply'>
INFO:openflow.of_01:[00-00-00-00-00-03 2] Received packet <class 'pox.openflow.libopenflow_01.ofp_barrier_reply'>
INFO:openflow.of_01:[00-00-00-00-00-03 2] Received packet <class 'pox.openflow.libopenflow_01.ofp_features_reply'>
INFO:openflow.of_01:[00-00-00-00-00-03 2] Received packet <class 'pox.openflow.libopenflow_01.ofp_barrier_reply'>
INFO:openflow.of_01:[00-00-00-00-00-04 3] Received packet <class 'pox.openflow.libopenflow_01.ofp_barrier_reply'>
INFO:openflow.of_01:[00-00-00-00-00-04 3] connected
DEBUG:openflow.discovery:Installing flow for 00-00-00-00-00-04
DEBUG:f.t_p.00-00-00-00-00-04:Connect [00-00-00-00-00-04 3]
DEBUG:f.t_p:Disabling flooding for 3 ports
INFO:openflow.of_01:[00-00-00-00-00-04 3] Received packet <class 'pox.openflow.libopenflow_01.ofp_barrier_reply'>
INFO:openflow.of_01:[00-00-00-00-00-04 3] Received packet <class 'pox.openflow.libopenflow_01.ofp_features_reply'>
INFO:openflow.of_01:[00-00-00-00-00-04 3] Received packet <class 'pox.openflow.libopenflow_01.ofp_barrier_reply'>
INFO:openflow.of_01:PacketIN data [7a:dc:3e:4f:0e:4a>01:23:20:00:00:01 LLDP]
INFO:openflow.discovery:link detected: 00-00-00-00-00-03.2 -> 00-00-00-00-00-04.1
INFO:openflow.of_01:[00-00-00-00-00-03 2] Received packet <class 'pox.openflow.libopenflow_01.ofp_barrier_reply'>
INFO:openflow.of_01:[00-00-00-00-00-04 3] Received packet <class 'pox.openflow.libopenflow_01.ofp_barrier_reply'>
INFO:openflow.of_01:[00-00-00-00-00-03 2] Received packet <class 'pox.openflow.libopenflow_01.ofp_packet_in'>
INFO:openflow.of_01:PacketIN data [56:53:c9:bd:a7:09>01:23:20:00:00:01 LLDP]
INFO:openflow.discovery:link detected: 00-00-00-00-00-04.1 -> 00-00-00-00-00-03.2
INFO:openflow.of_01:[00-00-00-00-00-03 2] Received packet <class 'pox.openflow.libopenflow_01.ofp_barrier_reply'>
INFO:openflow.of_01:[00-00-00-00-00-04 3] Received packet <class 'pox.openflow.libopenflow_01.ofp_barrier_reply'>
INFO:openflow.of_01:[00-00-00-00-00-04 3] Received packet <class 'pox.openflow.libopenflow_01.ofp_packet_in'>
INFO:openflow.of_01:PacketIN data [7a:dc:3e:4f:0e:4a>01:23:20:00:00:01 LLDP]
INFO:openflow.of_01:[00-00-00-00-00-03 2] Received packet <class 'pox.openflow.libopenflow_01.ofp_packet_in'>
INFO:openflow.of_01:PacketIN data [3a:07:f8:63:9d:6b>ff:ff:ff:ff:ff:ff ARP]
DEBUG:f.t_p.00-00-00-00-00-03:Learn 10.100.1.1 -> 3a:07:f8:63:9d:6b by ARP
INFO:openflow.of_01:[00-00-00-00-00-04 3] Received packet <class 'pox.openflow.libopenflow_01.ofp_packet_in'>
INFO:openflow.of_01:PacketIN data [3a:07:f8:63:9d:6b>00:00:00:00:00:03 IP]
DEBUG:f.t_p:Need MAC for 10.101.2.1
INFO:openflow.of_01:[00-00-00-00-00-04 3] Received packet <class 'pox.openflow.libopenflow_01.ofp_packet_in'>
INFO:openflow.of_01:PacketIN data [f6:60:0d:8e:49:57>00:00:00:00:00:04 ARP]
DEBUG:f.t_p.00-00-00-00-00-04:Learn 10.101.2.1 -> f6:60:0d:8e:49:57 by ARP
INFO:openflow.of_01:[00-00-00-00-00-04 3] Received packet <class 'pox.openflow.libopenflow_01.ofp_packet_in'>
INFO:openflow.of_01:PacketIN data [f6:60:0d:8e:49:57>ff:ff:ff:ff:ff:ff ARP]
INFO:openflow.of_01:[00-00-00-00-00-03 2] Received packet <class 'pox.openflow.libopenflow_01.ofp_packet_in'>
INFO:openflow.of_01:PacketIN data [56:53:c9:bd:a7:09>33:33:00:00:00:16 IPV6]
INFO:openflow.of_01:[00-00-00-00-00-03 2] Received packet <class 'pox.openflow.libopenflow_01.ofp_packet_in'>
INFO:openflow.of_01:PacketIN data [56:53:c9:bd:a7:09>33:33:00:00:00:02 IPV6]

Compare this to mininet (which runs DHCP):

mininet@mininet-vm:~/dart_pox$ ./pox.py --verbose openflow.discovery forwarding.topo_proactive
POX 0.3.0 (dart) / Copyright 2011-2013 James McCauley, et al.
DEBUG:core:POX 0.3.0 (dart) going up...
DEBUG:core:Running on CPython (2.7.3/Sep 26 2012 21:51:14)
DEBUG:core:Platform is Linux-3.5.0-17-generic-x86_64-with-Ubuntu-12.10-quantal
INFO:core:POX 0.3.0 (dart) is up.
DEBUG:openflow.of_01:Listening on 0.0.0.0:6633
INFO:openflow.of_01:[None 1] closed
INFO:openflow.of_01:[00-00-00-00-00-03 2] connected
DEBUG:openflow.discovery:Installing flow for 00-00-00-00-00-03
DEBUG:f.t_p.00-00-00-00-00-03:Connect [00-00-00-00-00-03 2]
DEBUG:f.t_p:Disabling flooding for 3 ports
INFO:openflow.of_01:[00-00-00-00-00-04 3] connected
DEBUG:openflow.discovery:Installing flow for 00-00-00-00-00-04
DEBUG:f.t_p.00-00-00-00-00-04:Connect [00-00-00-00-00-04 3]
DEBUG:f.t_p:Disabling flooding for 3 ports
INFO:openflow.discovery:link detected: 00-00-00-00-00-03.2 -> 00-00-00-00-00-04.1
DEBUG:f.t_p.00-00-00-00-00-03:Learn 10.100.1.1 -> 2e:59:c1:82:94:64 by DHCP Lease
INFO:proto.dhcpd:Leased 10.100.1.1 to 2e:59:c1:82:94:64
INFO:openflow.discovery:link detected: 00-00-00-00-00-04.1 -> 00-00-00-00-00-03.2
DEBUG:f.t_p.00-00-00-00-00-04:Learn 10.101.2.1 -> 3e:c6:f4:45:3f:74 by DHCP Lease
INFO:proto.dhcpd:Leased 10.101.2.1 to 3e:c6:f4:45:3f:74
@colin-scott
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Note that this problem may be resolved once #42 is resolved

@ahassany ahassany changed the title STS doesn't work with POX's topo_proactice module STS doesn't work with POX's topo_proactive module May 21, 2014
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