[c-nsp] Sup720-3bxl - mpls explicit-null-labels recirculation

[Christoph Loibl]

Hi everyone,

When disabling mpls implicit null signalled via ldp on the sup720-3bxl:

	mpls ldp explicit-null

The documentation says that packet re-circulation is needed to pop  
the explicit null label off the top of received packets.

Do I need to turn on "mls mpls tunnel-recir" for this to work  
correctly? The documentation is not very clear what this command  
really does and what it is actually needed for.

Does the packet-recirculation mean that I simply half the pps the pfc  
can handle given every packet received contains an explicit null  
label and needs recirculation? Packets that don't need recirculation  
are not effected at all?

Regards

Christoph

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