Dino -see below: > -----Original Message----- > From: Dino Farinacci [mailto:farina...@gmail.com] > Sent: Wednesday, December 08, 2021 12:19 PM > To: Templin (US), Fred L <fred.l.temp...@boeing.com> > Cc: to...@strayalpha.com; int-area@ietf.org > Subject: Re: [Int-area] Side meeting follow-up: What exact features do we > want from the Internet? > > > On Dec 8, 2021, at 8:30 AM, Templin (US), Fred L > > <fred.l.temp...@boeing.com> wrote: > > > > Absolutely not talking about translation - talking about concatenation and > > adaptation. > > Those terms are too general. Please be more specific.
OK, let's take an example of three independent Internetworks; call them N1, N2 and N3. N2 could be the global Internet while N1, N3 could be (for example) a couple of enterprise networks. The networks can be concatenated by joining them with Bridges, such as: H1 <-> N1 <-> B1/2 <-> N2 <-> B2/3 <-> N3 <-> H2 So host H1 connected to N1 can communicate with H2 connected to N3 with both using global IP addresses. Then, somewhere in N1 and N3 are nodes that configure an OMNI interface that invokes the OMNI Adaptation Layer (OAL). The OAL wraps the H1<->H2 IP packets in an IPv6 header, then wraps the IP-in-IPv6 packets in headers appropriate for network N* and forwards them to the nearest Bridge. The Bridge only operates on the adaptation layer IPv6 header and NOT on the inner IP header (that is why it is called "Bridge" and not "Router"), and forwards the packets over the next N* hop toward the final destination. You can concatenate as many networks as you like (and having diverse IP protocols) and the Bridges operating at the adaptation layer allow hosts located in distant networks to communicate at the IP layer. Fred > Dino= _______________________________________________ Int-area mailing list Int-area@ietf.org https://www.ietf.org/mailman/listinfo/int-area
