From owner-freebsd-stable  Sat Sep 29 10:35:18 2001
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To: Barney Wolff <barney@databus.com>
Cc: Joe Greco <jgreco@ns.sol.net>,
	"Gary W. Swearingen" <swear@blarg.net>, freebsd-stable@FreeBSD.ORG
Subject: Re: 127/8 continued 
In-reply-to: Your message of "Fri, 28 Sep 2001 23:53:37 EDT."
             <20010928235337.A94406@tp.databus.com> 
Date: Sat, 29 Sep 2001 10:35:11 -0700
From: "Kevin Oberman" <oberman@es.net>
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> Date: Fri, 28 Sep 2001 23:53:37 -0400
> From: Barney Wolff <barney@databus.com>
> Sender: owner-freebsd-stable@FreeBSD.ORG
> 
> I agree completely that the manpages are not and should not be a
> substitute for a good networking book.
> 
> Part of the conceptual problem is that Ethernet has evolved far
> from its coax origin, when it really was a broadcast medium.  As
> soon as twisted-pair was born, Ethernet became *electrically*
> point-to-point, but continues to be logically broadcast.  With
> fancy GBICs these days running GigE over dark fiber up to 70 km,
> Ethernet makes an awfully nice point-to-point technology.
> 
> Despite all that, I've never seen a fixed point-to-point circuit
> that was not a /30 if it landed on its own interface at the ISP's
> router.  The exceptions are all multiplexed/channeled at the ISP.
> I'm not sure RFC3021 is out there in the real Internet yet.
> Has anyone seen a T1 or better provisioned as a /31?

Not on FreeBSD, but I have an OC-12 between a Juniper M20 and an Avici
router configured that way.

R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: oberman@es.net			Phone: +1 510 486-8634

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