nanog mailing list archives
Re: Shim6, was: Re: filtering /48 is going to be necessary
From: Masataka Ohta <mohta () necom830 hpcl titech ac jp>
Date: Fri, 16 Mar 2012 08:31:07 +0900
William Herrin wrote:
A difficulty to understand the end to end principle is to properly recognize ends. Here, you failed to recognize home agents as the essential ends to support reliable communication to mobile hosts.A device which relays IP packets is not an endpoint, it's a router.
If you want to call something which may not participate in routing protocol exchanges a router, that's fine, it's your terminology. But, as far as HA has "the knowledge" obtained through control packet exchanges with MH, it is the end that can give "the help" to make mobile IP correct and complete.
It may or may not be a worthy part of a network architecture but it is unambiguously not an endpoint.
Even ordinary routers are ends w.r.t. routing protocols, though they also behave as intermediate systems to other routers. As LS requires less intelligence than DV, it converges faster.
If that isn't clear to you then don't presume to lecture me about the end to end principle.
Here is an exercise for you insisting on DNS, an intermediate system. What if DNS servers, including root ones, are mobile? Masataka Ohta
Current thread:
- Re: Shim6, was: Re: filtering /48 is going to be necessary, (continued)
- Re: Shim6, was: Re: filtering /48 is going to be necessary Robert Bonomi (Mar 14)
- Re: Shim6, was: Re: filtering /48 is going to be necessary Owen DeLong (Mar 14)
- Re: Shim6, was: Re: filtering /48 is going to be necessary Josh Hoppes (Mar 14)
- Re: Shim6, was: Re: filtering /48 is going to be necessary William Herrin (Mar 13)
- Re: Shim6, was: Re: filtering /48 is going to be necessary Masataka Ohta (Mar 14)
- Re: Shim6, was: Re: filtering /48 is going to be necessary William Herrin (Mar 15)
- Re: Shim6, was: Re: filtering /48 is going to be necessary Masataka Ohta (Mar 15)
- Re: Shim6, was: Re: filtering /48 is going to be necessary William Herrin (Mar 15)
- Re: Shim6, was: Re: filtering /48 is going to be necessary Valdis . Kletnieks (Mar 15)
- Re: Shim6, was: Re: filtering /48 is going to be necessary Tim Franklin (Mar 15)
- Re: Shim6, was: Re: filtering /48 is going to be necessary Masataka Ohta (Mar 15)
- Re: Shim6, was: Re: filtering /48 is going to be necessary Valdis . Kletnieks (Mar 15)
- Re: Shim6, was: Re: filtering /48 is going to be necessary Masataka Ohta (Mar 15)
- Re: Shim6, was: Re: filtering /48 is going to be necessary Jimmy Hess (Mar 15)
- Re: Shim6, was: Re: filtering /48 is going to be necessary Masataka Ohta (Mar 15)
- Re: Shim6, was: Re: filtering /48 is going to be necessary Valdis . Kletnieks (Mar 15)
- Re: Shim6, was: Re: filtering /48 is going to be necessary William Herrin (Mar 15)
- Re: Shim6, was: Re: filtering /48 is going to be necessary Masataka Ohta (Mar 15)
- Re: Shim6, was: Re: filtering /48 is going to be necessary William Herrin (Mar 16)
- Re: Shim6, was: Re: filtering /48 is going to be necessary Masataka Ohta (Mar 16)
- Re: Shim6, was: Re: filtering /48 is going to be necessary Valdis . Kletnieks (Mar 15)