Is there a way to write OVS rules to act on BFD state (i.e., modify tables based on BFD state) ?
On Thu, Jun 2, 2016 at 2:38 AM, Ben Pfaff <b...@ovn.org> wrote: > On Thu, Jun 02, 2016 at 12:41:32AM -0400, Lax Clarke wrote: > > Suppose we have two OVS switches A and B attached to two NICs > respectively. > > I have a VM in between that normally bridges traffic between A and B (and > > thus bridges traffic ingressing on the NICs). > > > > Is there a way to set up a bypass mechanism, whereby switches A or B can > > quickly determine that the VM is no longer bridging traffic, then cause a > > bypass around the VM? > > > > Maybe some sort of heartbeats sent between the bridges that can detect > > missing heartbeats on sub-10 seconds time frames? > > This sounds like a use for CFM or BFD. OVS supports both, see > ovs-vswitchd.conf.db(5). >
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