OK Sri; thanks. I just dropped a -40 version of the spec that includes substantial improvements to the fragmentation and MTU section beyond what you have already seen. If the WG wants to use this as a starting point, that would be OK with me.
Thanks - Fred From: Sri Gundavelli (sgundave) [mailto:[email protected]] Sent: Thursday, September 25, 2014 10:06 AM To: Templin, Fred L; [email protected] Subject: Re: Signaling Message Fragmentation Fred - If there is interest to do that work and the chair's are ok with it, I'll not object to that work. Regards Sri From: <Templin>, Fred L <[email protected]<mailto:[email protected]>> Date: Thursday, September 25, 2014 7:58 AM To: Sri Gundavelli <[email protected]<mailto:[email protected]>>, "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Subject: RE: Signaling Message Fragmentation OK, then it sounds like you would agree that fixing tunnel MTU once and for all would be a good thing? Thanks - Fred From: Sri Gundavelli (sgundave) [mailto:[email protected]] Sent: Wednesday, September 24, 2014 11:08 PM To: Templin, Fred L; [email protected]<mailto:[email protected]> Subject: Re: Signaling Message Fragmentation Hi Fred, Ok ! Not my area of interest, but I understand the requirement. Regards Sri From: <Templin>, Fred L <[email protected]<mailto:[email protected]>> Date: Wednesday, September 24, 2014 3:59 PM To: Sri Gundavelli <[email protected]<mailto:[email protected]>>, "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Subject: RE: Signaling Message Fragmentation Hi Sri, Sure, that diagram could be redrawn with airplanes instead of automobiles. But, consider also the case where the airplane is a mobile router that connects into a home network provided by an aeronautical Internet service provider. Then, the passenger devices are also mobile routers with their own home networks. That would represent a single mobile-router-within-mobile-router nesting, but a "nested NEMO" case nonetheless. We also care about use cases outside of just commercial aviation. Unmanned Air Systems, Unmanned Underwater Vehicles, MANETs, disaster relief networks, search and rescue networks, space-based systems etc. About tunnels within tunnels, we should be able to nest them to infinite levels of recursion where each level sees at least a 1500 MTU. None of this 1460 reduced to 1420 reduced to 1380, etc. until we run out of space - there should be a solid 1500 at every level with the ability to go bigger if the path MTU can support it. Thanks - Fred
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