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Will the 5660 route Jumbo Frames

The physical interface supports Jumbo Frames:

config-giga-eth 0/2)#mtu

<60-9242>              - MTU (bytes)

But it looks like the IP interface does not:

config-giga-eth 0/2.1)#ip mtu

<68-1500>              - MTU (bytes)

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Re: Will the 5660 route Jumbo Frames

I was advised by Adtran that all of their products including the 5660 with only do 1500 MTU on layer 3 / IP.  Any Jumbo Frame support is restricted to switching / L2 only.