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    Configuring Mobile Interface to APN Associations in VRFs

    The MobileNext Broadband Gateway associates mobile interfaces (mif-) with access point names (APNs). Every APN is associated with a single logical interface (unit) on a physical port represented by a mobile interface unit. The mapping of the mobile interface to physical interface is usually done in a virtual routing and forwarding (VRF) table. Using a VRF for each APN allows isolation of routing information and protocols by customer and simplifies gateway operation.

    Before you begin, you should have done the following:

    • Installed the broadband gateway
    • Installed the boards of the broadband gateway
    • Configured the physical interfaces on the broadband gateway chassis (this process is not mobility-specific)
    • Configured the mobility interfaces on the broadband gateway chassis

    To configure a mobility-interface-to-APN mapping in a VRF, specify the VRF and place both the mobile logical interface (unit) and the physical interface unit (the Gi or SGi interface for the APN) in the same VRF. This procedure places mif.1 and ge-0/0/0.5 in a VRF called User1-VRF and places mif.2 and ge-0/0/0.0 in a VRF called User2-VRF.

    1. Configure the mobility logical interface for User1-VRF:
      [edit routing-instances]user@host# set User1-VRF interface mif.1 user@host# set User1-VRF interface ge-0/0/0.5
    2. Configure the mobility logical interface for User2-VRF:
      [edit routing-instances]user@host# set User2-VRF interface mif.2 user@host# set User2-VRF interface ge-0/0/0.0

    Note: Normally, you would configure more statements for a VRF, but those additional statements are not mobility specific and not covered here.

    Published: 2011-11-22