Re: [ovs-discuss] Topology discovery in ovs

2012-06-05 Thread Robin Wang
Thanks very much for the detailed info, Peter! And the part of involving virtual entities into topology is even more interesting. Thanks! Best, Bibo 在 2012-6-5 中午12:20,"Peter Phaal" 写道: > Hi All, > > The original question was about L2 topology discovery. One of the > differences between sFlow and

Re: [ovs-discuss] Topology discovery in ovs

2012-06-04 Thread Peter Phaal
Hi All, The original question was about L2 topology discovery. One of the differences between sFlow and NetFlow is that sFlow operates at layer 2 (reporting layer 2 interfaces and MAC addresses) and NetFlow typically operates at layer 3 (reporting router (VLAN) interfaces and IP addresses). Con

Re: [ovs-discuss] Topology discovery in ovs

2012-06-04 Thread Motonori Shindo
Kim and Robin, NetFlow and sFlow can give you some idea how your network topology looks like, but it is difficult to draw a complete picture of the network with NetFlow/sFlow because they are not designed to do such a thing. Theoretically NetFlow and sFlow can tell on which interface a particu

Re: [ovs-discuss] Topology discovery in ovs

2012-06-04 Thread Ethan Jackson
That is fine, as there are other tools out there. > > > > Thanks! > > Joon > > > > > > From: Robin Wang [mailto:cloudbe...@gmail.com] > Sent: Monday, June 04, 2012 10:42 AM > To: Kim, Hyojoon > Cc: discuss@openvswitch.org > Subject: Re: [ovs-discuss]

Re: [ovs-discuss] Topology discovery in ovs

2012-06-04 Thread Kim, Hyojoon
, Hyojoon Cc: discuss@openvswitch.org Subject: Re: [ovs-discuss] Topology discovery in ovs Hi Kim, I found an email that indicates OVS doesn't have built-in support. But it was a year ago, not sure whether it's supported now. http://openvswitch.org/pipermail/discuss/2011-July/005400.htm

Re: [ovs-discuss] Topology discovery in ovs

2012-06-04 Thread Robin Wang
Hi Kim, I found an email that indicates OVS doesn't have built-in support. But it was a year ago, not sure whether it's supported now. http://openvswitch.org/pipermail/discuss/2011-July/005400.html For sFlow, to me, it is similar to NetFlow, and usually used to track dynamic traffic in a network

[ovs-discuss] Topology discovery in ovs

2012-06-04 Thread Kim, Hyojoon
Hi all, What is the most common way to do layer-2 network topology discovery in OVS? Some searching gives me a hint that people install lldpd, and query that table once it's populated. Is this the most common way? I figured out there is no SNMP support in OVS, but there is sFlow. Is sFlow i