nanog mailing list archives

Re: worse than IPv6 Pain Experiment


From: "John Levine" <johnl () iecc com>
Date: 9 Oct 2019 14:19:42 -0400

In article <23963.65395.763065.591307 () gargle gargle HOWL> you write:
So I proposed we dump numeric addresses entirely and use basically
URLs in IP packets and elsewhere.

I really meant something like 'IP://www.TheWorld.com' in the
source/dest addr, possibly more specific for multiple interfaces but
whatevs.

Leave out the implied 'IP://' and my example is 16 chars just like
IPv6.

Routers could of course do what they like with those internally such
as maintain a hash table to speed look-ups. Not anyone outside of
router software developers' problem. ...

This is more or less equivalent to using device MAC addresses
everywhere.

I think that if you talk to people who build routers, you will find
that they depend really heavily on the detail that every IP address
has a network part and a host part, and they route using the network
part.

Ethernet switches send traffic to arbitrary MAC addresses, at the cost
of remembering every MAC address they've seen, typically in a table
with a few thousand entries.  I know you've been on the net long
enough to remember the good old days when there were only a few
thousand URLs, but I fear it's unlikely we'll go back there.

R's,
John


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