Hello Experts,
When doing MLP LFI or Frame-relay FRF.12 fragmentation do we have to take
into account the layer header ?
Using "fragment delay" with MLP/LFI : IOS deduct the fragment size from
configured bandwidth and it seems to remove the layer 2 header size (see
example below)
So when configuing "fragment size" with FRF.12 do we also have to remove
the layer 2 header size ??? frame-relay fragment 160 or frame-relay
fragment 156 (example for a 10ms over 128kbps links)
*MLP/LFI Example*
interface Multilink1
bandwidth 128
ip address 155.1.45.4 255.255.255.0
ppp multilink
ppp multilink interleave
ppp multilink group 1
ppp multilink fragment delay 10
service-policy output VOIP
do sh ppp mul
Multilink1
Bundle name: Rack1R5
Remote Endpoint Discriminator: [1] Rack1R5
Local Endpoint Discriminator: [1] Rack1R4
Bundle up for 06:22:36, total bandwidth 128, load 1/255
Receive buffer limit 12000 bytes, frag timeout 1000 ms
Interleaving enabled
0/0 fragments/bytes in reassembly list
0 lost fragments, 0 reordered
0/0 discarded fragments/bytes, 0 lost received
0x53A received sequence, 0x4DE sent sequence
Member links: 1 active, 0 inactive (max not set, min not set)
Se0/1, since 06:22:36, *160 weight, 152 frag size*
*-------------------> 1 280/8 = 160 bytes - 8 bytes MPPP header = 152
bytes
*
*Thanks for your answer *
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