MPLS VPNs - MPLS VPN Control Plane - MP-BGP and route Distinguishers

3 important questions on MPLS VPNs - MPLS VPN Control Plane - MP-BGP and route Distinguishers

What does MPLS use for overlapping prefixes from different customers?

MP-BGP address family called route distinguishers (RD)

What is the format for the RD?

RD is 8 byte

2 byte identify the format


The formats are:


-2 byte integer:4 byte integer
-4 byte integer:2 byte integer
-4 byte dotted decimal: 2 byte integer

What is the name of NLRI that is used for MPLS VPN?

VPNv4

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