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Configuring Fragmentation and Reassembly for Dynamic MLPPP

To configure fragmentation and reassembly for dynamic MLPPP, you must create a profile that includes commands to define the link and bundle attributes, just as you do for a static MLPPP configuration.

For more information, see:

To define a profile that configures MLPPP fragmentation and reassembly for a dynamic MLPPP interface:

  1. From Global Configuration mode, create a profile by assigning it a name, and access Profile Configuration mode.
    host1(config)#profile dynmlppp1
    host1(config-profile)#
  2. Enable the creation of dynamic MLPPP interfaces.
    host1(config-profile)#ppp multilink enable
  3. Enable fragmentation on the link interface, and optionally specify the maximum allowable fragment size to use.
    host1(config-profile)#ppp fragmentation 128

    Note: You can specify the maximum fragment size for a link only when you use the ppp fragmentation command to enable fragmentation on that link. You cannot specify the maximum fragment size for a link when fragmentation is disabled.

  4. Enable reassembly on the link interface, and optionally specify the administrative MRRU value to use.
    host1(config-profile)#ppp reassembly 1800

    Note: You can specify the administrative MRRU value for a link only when you use the ppp reassembly command to enable reassembly on that link. You cannot specify the administrative MRRU for a link when reassembly is disabled.

  5. (Optional) Specify a virtual router to which dynamic IP interfaces created with this profile will be assigned.
    host1(config-profile)#ip virtual-router boston
  6. (Optional) Specify an IP loopback interface with which dynamic IP interfaces created with this profile will be associated.
    host1(config-profile)#ip unnumbered loopback 0
  7. (Optional) Set other PPP characteristics as needed by using the ppp commands described in Configuring Multilink PPP.
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