Debug OpenFlow

You can display OpenFlow protocol packets or event description.

NOTE:

The debug openflow packets option displays only OpenFlow protocol packets exchanged between the switch and the controller.

Syntax


switch# debug openflow <errors|events|instance|packets>

errors: Display OpenFlow error messages.
events: Enable debug messages for all OpenFlow events like addition/deletion/modification, enable/disable.
instance: Specify an OpenFlow instance for instance-specific debug messages.
packets: Enable debug messages for all OpenFlow packets.

Example: Debug logs

Flow deletion

mOFCtrlTask: 00020| DBG|Flow deletion:
idle_timeout=60,dl_type=0x0800,in_port=27,dl_vlan=65535,
dl_vlan_pcp=0,dl_src=00:50:56:9f:5f:0a,dl_dst=00:50:56:9f:19:92,
nw_src=1.2.3.6,nw_dst=1.2.3.4,icmp_type=0,icmp_code=0,
actions=output:26

Flow addition

mOFCtrlTask: 00019| DBG|Flow addition:
idle_timeout=60,dl_type=0x0800,in_port=27,
dl_vlan=65535,dl_vlan_pcp=0,dl_src=00:50:56:9f:5f:0a,
dl_dst=00:50:56:9f:19:92,nw_src=1.2.3.6,nw_dst=1.2.3.4,
icmp_type=0,icmp_code=0,actions=output:26

Flow expiry

mOFCtrlTask: 00018| DBG|Flow expiry:
idle_timeout=1200,dl_type=0x0800,nw_src=1.2.3.7,
nw_dst=1.2.3.8,actions=mod_nw_src:9.8.7.6