On Wed, Oct 29, 2008 at 8:28 AM, Eliot Lear <[EMAIL PROTECTED]> wrote:
>> On Wed, Oct 29, 2008 at 2:58 AM, Eliot Lear<[EMAIL PROTECTED]>  wrote:
>>> To put it another way,
>>> home and SMB networks really don't even have an option today to be
>>> multihomed (at least not at the network layer),
>>
>> Not correct. Anyone buying at least two T1s @ $600/mo or so each
>> qualifies for a /24 for multihoming from one of the ISPs and an AS#
>> from ARIN.
>
> They're going from $25 - $90 or so single homed (what most pay) to $1200
> multihomed plus a BGP capable router plus the cost of the ASN, and that's
> only for failover.  If you want to actually make use of optimal routing, how
> much will that router cost?  But all of that is NOTHING in comparison to the
> costs of the expertise needed to manage such a service.

Hi Eliot,

A Cisco 2811 with extra RAM capable of handling full BGP for two T1s
costs about $2500. BGP-capable routers don't get expensive until you
need one that can do both BGP and a few hundred mbps of traffic. As
for expertise, the two most common configurations (primary/fail and
balanced share) could be easily commoditized with the instructions:
Here's your preconfigured router for the two ISPs you selected. If one
ISP ever acts flakey, pull the T1 cord.

The hobbyist without any expertise is going from the sub-$100 range to
$1200. Or rather, for the most part he isn't because his Internet link
isn't worth that much to him.

The small business is going from $600 to $1200, which isn't so big a jump.



> Who said anything about removing BGP?  Certainly not me.  Not sure what you
> mean by "disrupting."

My understanding is that APT replaces BGP entirely within its islands
from the outset, Ivip replaces BGP following a transition period and
LISP retasks BGP to carry routing for only the core ingress and egress
nodes. Apologies to the authors if I have that wrong; it has been a
long time since I read any of the three proposals and I could easily
be crosslinking other discussions in my head. Can you point me to
documentation that clarifies the situation?

Anyway, a retasking of BGP would qualify as "disruptive" since BGP
would cease to be usable for its original purpose of providing routing
for enduser-level addresses.


On Wed, Oct 29, 2008 at 10:06 AM, Scott Brim <[EMAIL PROTECTED]> wrote:
> But the main point is whether small networks are managed differently
> enough that they could be treated differently.  Multihoming is one
> factor, renumbering is another, and there are certainly others.

Scott,

I suspect that's mostly a red herring. It takes two to communicate. No
matter how I manage my network, I only control half that process. When
the agency I'm contracting for wants my source IP address to put in
their firewall, I don't have the luxury of saying, "Gee, I really
don't manage my network that way."

Regards,
Bill Herrin


-- 
William D. Herrin ................ [EMAIL PROTECTED]  [EMAIL PROTECTED]
3005 Crane Dr. ...................... Web: <http://bill.herrin.us/>
Falls Church, VA 22042-3004
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