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Beginner

EXP bit

Quick Question please,

 

In MPLS network with VRFs, there are two labels on the packet, one is the MP-BGP label and the other is LDP label. Does the MP-BGP label have EXP bit? Or it's only on the LDP label?

 

Thank you

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Cisco Employee


@ahmede1 wrote:

Quick Question please,

 

In MPLS network with VRFs, there are two labels on the packet, one is the MP-BGP label and the other is LDP label. Does the MP-BGP label have EXP bit? Or it's only on the LDP label?

 

Thank you


Hi,

 

sure, it does have EXP bit.
Actually both labels have EXP bit.

 

Regards.

 

 

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Yes. Both the labels are 4byte long and have the EXP bits also. When outer most label is removed the EXP is copied from outer label to inner label.
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