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Token Ring MTU

What is the MTU for token ring? I see everywhere that itis 17800 bytes, but an examcram book has one of it's questions' answers as 17997 bytes. which is it?

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New Member

Re: Token Ring MTU

17,992 - 17,800. It really depends on the chipset being used and if the software is taking the dlc header into consideration. The high end Cisco routers for example use a mtu of 17,992. Where as the low end routers us 17,972.

New Member

Re: Token Ring MTU

Thanks for your input... I am taking the written exam tomorrow, so I guess if I am asked this question, and the more specific answer is there, I will select that. I will assume that is the answer Cisco is looking for.

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