Identify and briefly describe the four parts of a Multiprotocol Label Switching (MPLS) header.
What will be an ideal response?
The MPLS header consists of four parts:
• Label A unique identifier, used by MPLS-capable routers to determine how to move data.
• Experimental Bits (Exp) A relative value used to determine the importance of the labeled packet to be able to prioritize some packets over others.
• Bottom of Label Stack (S) In certain situations, a single packet may have multiple MPLS labels. This single bit value is set to 1 for the initial label.
• Time to Live (TTL) A value that determines the number of hops the label can make before it's eliminated
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