Changes between Version 104 and Version 105 of GENIExperimenter/Tutorials/OpenFlowOVS/Execute
- Timestamp:
- 11/05/14 14:23:52 (9 years ago)
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GENIExperimenter/Tutorials/OpenFlowOVS/Execute
v104 v105 167 167 You should see at least two table entries: One for ICMP Echo (icmp_code=8) messages from host1 to host2 and one for ICMP Echo Reply (icmp_code=0) messages from host2 to host1. You may also see flow entries for arp packets. 168 168 169 6. To see messages go between your switch and your controller (listening on port 6633 of your localhost), open a new ssh window to your controller node and run tcpdump on the `eth0` interface:170 {{{ 171 sudo tcpdump -i eth0 'port 6633'169 6. To see messages go between your switch and your controller, open a new ssh window to your controller node and run tcpdump on the `eth0` interface and on the tcp port that your controller is listening on usually 6633: 170 {{{ 171 sudo tcpdump -i eth0 tcp port 6633 172 172 }}} 173 173 You will see (1) periodic keepalive messages being exchanged by the switch and the controller, (2) messages from the switch to the controller (e.g. when there is a table miss) and an ICMP Echo message in, and (3) messages from the controller to the switch (e.g. to install new flow entries).