[ovs-dev] [PATCH] Document issues with RSPAN and MAC learning.

Ben Pfaff blp at nicira.com
Tue Sep 29 16:01:55 UTC 2009

Keith Amidon <keith at nicira.com> writes:

> Open vSwitch currently use the following key to indicate the VLAN on which
> RSPANed packets will be copied:
>     mirror.brname.pmname.output.vlan=vid
> Would it make sense to disable MAC learning on each VLAN referenced by such a
> key in the configuration?  In the case of an intermediate switch on which no
> switch-local traffic needs to be copied this key would be present to disable
> learning for the VLAN but there wouldn't be any corresponding select key to
> indicate the source of data to be copied.

Currently, if no source is selected, all packets are mirrored.

I would prefer to add a new key to indicate that MAC learning
should be disabled on a VLAN.

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