On Fri, 6 Jul 2001, Chuck Larrieu wrote:
> -
> CL: does Bellsouth run their own backbone, or use someone else's? I ask
Oh. I forgot. They /claim/ to peer with other NSPs at each of there, for
lack of better term, megapops...but I've never seen anything /not/ go
through uu, even when uu, or
On Fri, 6 Jul 2001, Chuck Larrieu wrote:
> CL: does Bellsouth run their own backbone, or use someone else's? I ask
They back into uunet somewhere around atlanta, for this area at
least. Bounces through 2-4 hops..the general idea seems to be to drop a
pop at the CO of the lata, and frame all the
comments below:
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
David Raistrick
Sent: Friday, July 06, 2001 3:33 PM
To: [EMAIL PROTECTED]
Subject: Re: advertising IP blocks [7:11191]
On Fri, 6 Jul 2001, John Neiberger wrote:
> It's important
Certainly, your mileage may vary. That's why I prefaced that statement
with "in our case".
Since we've implemented our dual-homing strategy we haven't had any
major issues that did not involve either the telco and our local loop or
the next upstream router, usually on Verio's side. The Sprint
On Fri, 6 Jul 2001, John Neiberger wrote:
> It's important to think about what we consider to be failures in our ISP
> and then ask the question: "What are we protecting ourselves from?" In
> our case, more often than not an outage is caused by downtime on our
> directly connected router or a fa
If you go with two ISPs, aggregation by the ISP you received the
addresses from might cause some traffic-related issues you need to be
aware of. Let's say you have a /24 from Bill's ISP and you then add an
additional connection to Ted's ISP. You are running BGP with both and
advertise your /24 f
Daniel,
Unless you are going to get your own IPs from ARIN, you don't have to worry
about getting anything smaller than /24. Just like John said, if you are
using IPs assigned from ISPs, they should do the aggregation job for you to
make sure your IPs get global routability.
If you could get two
It's important to think about what we consider to be failures in our ISP
and then ask the question: "What are we protecting ourselves from?" In
our case, more often than not an outage is caused by downtime on our
directly connected router or a failure on the physical link itself,
between the CO a
Thank you for the response, John.
Accessibility from just about anywhere, especially in the US, keeps me happy
too. But our ISPs have a tendency to mess up routing table entries or
otherwise shut us off. We have outgrown a single T1, and want to add some
redundancy.
I need a solution that will
Keep in mind what is actually occurring when using BGP. You are
advertising prefixes from your AS into your provider's AS. They in turn
either include your specific prefix in their announcements to other
providers, or they aggregate your smaller prefix into larger
advertisements. It is at this
We are looking into multi-homing our network and running BGP on our router.
I was told by some of you before that some ISPs won't advertise a block of
IP's smaller than /22 and many won't do any smaller than /24. That leads to
this question.
Are our ISPs the only ones that need to advertise our
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