Thanks Ben.
Mehul.
On Wednesday, December 3, 2014 1:07 AM, Ben Pfaff <[email protected]> wrote:
On Tue, Dec 02, 2014 at 10:42:09AM +0000, Mehul Vora wrote:
> ??I am trying to understand different components of ovs. Please correct me if
> my understanding is wrong,??
> 1. ovsdb-server : Maintains openvswtich configuration databse.??
> 2. ovs-vswitchd : Dameon that controls all Open vSwitch swithces on the local
> system. When this process is started it gets its initial configuration from
> OVSDB-SERVER/OVSDB.??
> 3. ovs-vsctl : Connects to ovsdb-server for any configuration changes in the
> data base and ensures that ovs-vswitchd has also applied all changes.
> 4. ovs-ofctl : Talks to ovs-vswitchd over OpenFlow to configure flows.
Sure, those are all roughly correct.
> I want to know where are these flows (configured by ovs-ofctl)
> stored other than ovs-vswitchd.
Nowhere. If you have important flows, you should use an OpenFlow
controller, and it should restore the flows after ovs-vswitchd
restarts.
> For example, if ovs-vswitchd application crashes for unknown reason,
> do i lose all flow configurations?
Yes.
> Or is it stored in ovsdb by vswitchd?
No.
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