[ovs-discuss] How to read L2 MAC tables

Justin Pettit jpettit at nicira.com
Thu Oct 3 02:05:56 UTC 2013


Who is populating the MAC table?  If it's your controller (as it appears in your output), then that's the best way.  If you're using the OVS's "normal" action, then "ovs-appctl fdb/show <bridge>".

--Justin


On Oct 2, 2013, at 7:03 PM, Morgan Yang <Morgan.Yang at radisys.com> wrote:

> Hi All:
>  
> Is it possible to dump just the L2 MAC table for a bridge in OVS? Also, is it possible to see flows via “dump-flows” without running an openflow controller? Right now, I have to run a POX controller to see the L2 and flow info via “ovs-ofctl dump-flows”
>  
> # ovs-ofctl dump-flows ovsfabric0
> NXST_FLOW reply (xid=0x4):
> cookie=0x0, duration=10.466s, table=0, n_packets=6, n_bytes=588, idle_timeout=10, hard_timeout=30, idle_age=5, priority=65535,icmp,in_port=2,vlan_tci=0x0000,dl_src=52:54:00:da:d3:a0,dl_dst=00:00:50:a4:5e:d8,nw_src=80.1.11.1,nw_dst=80.2.1.1,nw_tos=0,icmp_type=8,icmp_code=0 actions=output:1
> cookie=0x0, duration=11.483s, table=0, n_packets=7, n_bytes=686, idle_timeout=10, hard_timeout=30, idle_age=5, priority=65535,icmp,in_port=1,vlan_tci=0x0000,dl_src=00:00:50:a4:5e:d8,dl_dst=52:54:00:da:d3:a0,nw_src=80.2.1.1,nw_dst=80.1.11.1,nw_tos=0,icmp_type=0,icmp_code=0 actions=output:2
> cookie=0x0, duration=6.432s, table=0, n_packets=1, n_bytes=42, idle_timeout=10, hard_timeout=30, idle_age=6, priority=65535,arp,in_port=2,vlan_tci=0x0000,dl_src=52:54:00:da:d3:a0,dl_dst=00:00:50:a4:5e:d8,arp_spa=80.1.11.1,arp_tpa=80.2.1.1,arp_op=2 actions=output:1
> cookie=0x0, duration=6.433s, table=0, n_packets=1, n_bytes=60, idle_timeout=10, hard_timeout=30, idle_age=6, priority=65535,arp,in_port=1,vlan_tci=0x0000,dl_src=00:00:50:a4:5e:d8,dl_dst=52:54:00:da:d3:a0,arp_spa=80.2.1.1,arp_tpa=80.1.11.1,arp_op=1 actions=output:2
>  
> Much Thanks
> Morgan Yang
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