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    Configuring EXP Bits for Differentiated Services

    To set the initial value of the EXP bits to the UPC value associated with the packets:

    • Issue the mpls copy-upc-to-exp command.
      host1(config)#mpls copy-upc-to-exp

    To prevent the value of the EXP bits for a VPN/VC label from being modified by a per-LSP policy applied for the outer labels or by per-VR traffic class/color rules:

    • Issue the mpls preserve-vpn-exp command.
      host1(config)#mpls preserve-vpn-exp

    Published: 2014-08-18