Hello, I have set up fat-tree topology using InstaGENI aggregate, pls see file attached for more detail.
I am setting up edge, aggregate and core switches using following set of commands: ovs-vsctl add-br br0 ifconfig eth1 0 ifconfig eth2 0 ifconfig eth3 0 ifconfig eth4 0 ovs-vsctl list-br ovs-vsctl add-port br0 eth1 ovs-vsctl add-port br0 eth2 ovs-vsctl add-port br0 eth3 ovs-vsctl add-port br0 eth4 ovs-vsctl list-ports br0 ifconfig eth1 0 up ifconfig eth2 0 up ifconfig eth3 0 up ifconfig eth4 0 up ovs-vsctl set-controller br0 tcp:<controller IP>:6633 ovs-vsctl set bridge br0 protocols=OpenFlow10 ovs-vsctl set-fail-mode br0 secure I have set up a POX(dart) controller with public IP and running forwarding.l2_learning on it: ./pox.py log.level --DEBUG pox.forwarding.l2_learning all edge, aggregate and core nodes are running ovs 2.3.1 version. But firstly, I am not able to ping/iperf between two hosts and secondly, the controller runs with this error: ERROR:openflow.of_01:[62-75-7f-15-b9-4d 14] OpenFlow Error: [62-75-7f-15-b9-4d 14] Error: header: [62-75-7f-15-b9-4d 14] Error: version: 1 [62-75-7f-15-b9-4d 14] Error: type: 1 (OFPT_ERROR) [62-75-7f-15-b9-4d 14] Error: length: 36 [62-75-7f-15-b9-4d 14] Error: xid: 118250 [62-75-7f-15-b9-4d 14] Error: type: OFPET_BAD_REQUEST (1) [62-75-7f-15-b9-4d 14] Error: code: OFPBRC_BUFFER_UNKNOWN (8) [62-75-7f-15-b9-4d 14] Error: datalen: 24 [62-75-7f-15-b9-4d 14] Error: 0000: 01 0d 00 18 00 01 cd ea 00 00 05 d4 00 02 00 08 |................| Any help/suggestion to fix this issue is much appreciated. OR if anyone in the list has experience with setting up GENI topologies can point a problem in the steps I am following. PS the same steps work fine with simple GENI-topology(3 hosts, 1 switch, 1 controller). Thank you, *Sadia Bashir* --
