MPLS and DiffServUsing the EXP bits

• Copy or map precedence into EXP field

• Copy up the label stack

• Problem: only 3 bits hence 8 classes max)

0 1 2 3

0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1

Label

EXP

S

TTL

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