Simply reading some openstack manual, I found that Openstack Neutron would need
and/or configure several OVS bridges within every compute Nodes and Neutron
networking node. From OVS point of view, the multiple OVS bridges will be
multiple Datapath inside one OpenvSwitch. the data processing will have to
work on every flow tables of every related DP in sequence. For example, for
the following path,
VM1 -> ( vnet0 on ovs_br1 -> veth_pair_A ) -> ( veth_pair_B on ovs_br2 ->
eth1)
For traffic coming out of VM1, I think OVS would have to first work on the flow
table of ovs_br1; then output to port veth_pair_A. Then for some future loop,
OVS will have to repeat it logic on the flow table of ovs_br2, etc.
First of all, please correct me if my understanding of OVS is wrong. If my
understanding is correct, did anyone evaluate the performance effect out of the
multiple tier OVS bridges within every hosting machines? Any enhancement to
make it more efficient ?
Thanks,
Bob
From: discuss-boun...@openvswitch.org [mailto:discuss-boun...@openvswitch.org]
On Behalf Of Ben Pfaff
Sent: Tuesday, December 10, 2013 9:15 AM
To: Nir Yechiel
Cc: discuss@openvswitch.org discuss
Subject: Re: [ovs-discuss] CDP/LLDP in OVS
No, I don't.
On Dec 10, 2013 3:02 AM, "Nir Yechiel"
<nyech...@redhat.com<mailto:nyech...@redhat.com>> wrote:
Hi,
Do you know of anyone working on CDP/LLDP support?
Thanks,
Nir
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