[zebra 19228] Re: What is your setup?

On Sun, 1 Jun 2003 10:44:18 +0800, benjm <nudtzhangxz <at> 263.net> wrote:

> Is your Zebra router peering with Internet Backbone routers and 
> downloading the full routing tables for it ?
Well, my peers advertise a full Internet routing table to me. They don't 
class as "Internet Backbone" (who does?) one of them is a large provider in 
my country (New Zealand), the other a smaller ISP. If you have more than 
one peer, and wish to get the best routes available, you should have a full 
routing table.

> I have looked into a few BGP View Web sites and a few Backbone routers 
> maybe exceed 120K's full routing tables.
Yes, perhaps because of non-aggregated internal routes and so on. One of my 
peers advertises about 200 routes more than another one, because of 
prefixes longer than /24 that they don't aggregate before advertising them 
to me.

> Another question is :
> Is there any Internet backbone router which can be peered with personal 
> zebra BGPD process and download routing tables for free ???
BGP has to be setup at both ends, and hence requires static IP addresses.
If you can find someone to do this for you, then yes.
There are places such as Radisys (sp?) that accept advertisements from many 
many providers and build a rough picture of the Internet's routing 
topology. Perhaps they offer this as a service?

Also telnet to route-server.exodus.net AKA route-server.cw.net. Its a Cisco 
router, so sh ip bgp will show you the exodus/cw routing information.

I would do this for you if you wanted, but routing tables differ from 
provider to provider, not to mention country to country, so you wouldn't 
get an accurate picture.

Talk to your ISP, they may be able to do this for you.
Prior to having 2 peers, I was recieving a full table from my provider and 
using this to distinguish international from national traffic, for my 
billing system.

In NZ, international and national traffic are significantly different (ie, 
we pay the same price for 512kbps international as for 10mbit national...). 
How does this compare to other countries/regions??

--

-- 
Nathan Ward
Esphion Ltd.