4 Comments on “Which additional configuration accomplishes this task?”

1. Snoopy says:

   November 15, 2015 at 3:08 pm

   Explanation:
   The “ppp multilink interleave” command is needed to enable link fragmentation and Interleaving
   (LFI). The Cisco IOS Link Fragmentation and Interleaving (LFI) feature uses Multilink PPP (MLP).
   MLP provides a method of splitting, recombining, and sequencing datagrams across multiple
   logical data links. MLP allows packets to be fragmented and the fragments to be sent at the same
   time over multiple point-to-point links to the same remote address.
   ppp multilink links maximum
   To limit the maximum number of links that Multilink PPP (MLP) can dial for dynamic allocation, use
   the ppp multilink links maximum command in interface configuration mode.
   Reference.
   http://www.cisco.com/c/en/us/td/docs/ios/12_2/qos/configuration/guide/fqos_c/qcflfi.html

   
   
   
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2. greenhorn says:

   March 18, 2016 at 10:52 am

   Interleaving is not required in the question.
   Hence B.

   
   
   
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   1. Vadim says:

      April 29, 2016 at 1:54 pm

      Why not is D?

      
      
      
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3. 2ielony-ludek says:

   December 28, 2017 at 2:52 am

   Certainly – B.
   With this config:

   R1#show ppp multilink

   Multilink19
   Bundle name: R2
   Remote Endpoint Discriminator: [1] R2
   Local Endpoint Discriminator: [1] R1
   Bundle up for 00:09:15, total bandwidth 3088, load 1/255
   Receive buffer limit 24000 bytes, frag timeout 1000 ms
   0/0 fragments/bytes in reassembly list
   0 lost fragments, 68 reordered
   0/0 discarded fragments/bytes, 0 lost received
   0x88 received sequence, 0x78 sent sequence
   Member links: 2 active, 0 inactive (max 3, min not set)
   Se1/0, since 00:09:16, 3860 weight, 1496 frag size
   Se1/1, since 00:07:33, 3860 weight, 1496 frag size
   No inactive multilink interfaces
   R1#debug ppp multilink fragments
   Multilink fragments debugging is on
   R1#ping size 5000
   …
   *Dec 28 07:41:33.035: Se1/0 MLP: O frag 80000052 size 1504 encsize 4
   *Dec 28 07:41:33.035: Se1/0 MLP: O frag 40000053 size 14 encsize 4
   *Dec 28 07:41:33.035: Se1/0 MLP: O frag 80000054 size 1504 encsize 4
   *Dec 28 07:41:33.035: Se1/1 MLP: O frag 40000055 size 14 encsize 4
   *Dec 28 07:41:33.035: Se1/0 MLP: O frag 80000056 size 1504 encsize 4
   *Dec 28 07:41:33.035: Se1/1 MLP: O frag 40000057 size 14 encsize 4
   *Dec 28 07:41:33.035: Se1/0 MLP: O frag C0000058 size 570 encsize 4
   *Dec 28 07:41:33.083: Se1/1 MLP: I frag 4000005B size 760 encsize 4
   *Dec 28 07:41:33.083: Se1/0 MLP: I frag 8000005A size 758 encsize 4
   *Dec 28 07:41:33.091: Se1/1 MLP: I frag 4000005D size 760 encsize 4
   …

   No “interleave” was needed.

   
   
   
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