A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Point-to-Point Protocol Extensions Working Group of the IETF.
Title : Accommodating an MTU of 1500 in PPPoE
Author(s) : J. Fitzgibbon
Filename : draft-ietf-pppext-pppoe-mtu-1500-00.txt
Pages : 0
Date : 2005-1-28
Point-to-Point Protocol Over Ethernet, (PPPoE), as described in RFC
2516, mandates a maximum negotiated MRU of 1492. This memo proposes
relaxing that restriction to allow a maximum negotiated MRU of 1500.
This can be achieved by treating the PPPoE Header and Protocol ID as
part of the Ethernet Header, taking advantage of the fact that most
network devices have buffers for the Ethernet Header and Payload that
are at least 1522 octets in size. To aid backward compatability, the
proposal recommends testing the link with MRU-sized Echo-Request
packets if an MRU greater than 1492 has been assumed or negotiated.
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