A new proposal on tunnel MTU determination is now available in the I-D repository as:
"Simple Protocol for Robust IP/*/IP Tunnel Endpoint MTU Determination (sprite-mtu)" http://www.ietf.org/internet-drafts/draft-templin-inetmtu-05.txt The proposal asserts that there is nothing fundamentaly wrong in the normative tunnel MTU handling specifications (RFCs 2003; 4213) - only that they are incomplete. It also specifies simple mechanisms for completion that provide: 1) a means for avoiding MTU-related black holes 2) a means for avoiding corruption in reassembly buffers 3) improved convergence and efficiency Please review the document (abstract below) and send comments to the list. Thanks - Fred [EMAIL PROTECTED] Abstract The nominal Maximum Transmission Unit (MTU) of today's Internet has become 1500 bytes, but IP/*/IP tunneling mechanisms impose an encapsulation overhead that can reduce the effective path MTU to smaller values. Additionally, existing tunneling mechanisms are limited in their ability to support larger MTUs. This document specifies a simple protocol for robust IP/*/IP tunnel endpoint MTU determination (sprite-mtu). _______________________________________________ Int-area mailing list [email protected] https://www1.ietf.org/mailman/listinfo/int-area
