Hi! We started tracking this kind of information too... Check out: http://www.rsng.net/pair/ We're hoping that these tools make it easier for the community to diagnose and troubleshoot these types of routing and policy problems. Let us know what you think of them... -abha ;) On Thu, 26 Jun 1997, Curtis Villamizar wrote:
In message <Pine.SOL.3.95.970618151012.15875A-100000@roofdog.acsi.net>, "Eric D . Madison" writes:
There still seems to be a lot of Routes out there that are not in the RADB. I know that ANS is not excepting routes not in a routing database, and others are starting to follow. It's a good idea!
I am not getting some of these routes because of the lack of an RADB entry, and it's very frustrating..
Anyone else having the same problems??
Ohh one more thing.. Seems that there are also some routes that are being advertised that don't even have a InterNIC/RIPE/APNIC entry either.. If they don't have an entry, then they are not real "Valid" routes, so I don't want to route them.. but the Origin is from a large provider.. any suggestions? Seems that they have build their whole infrastructure on these routes too.
Eric
_______________________________________________________ Eric D. Madison - Senior Network Engineer - ACSI - Advanced Data Services - ATM/IP Backbone Group 24 Hour NMC/NOC (800)291-7889 Email: noc@acsi.net
The route-dumps anaylsys page has been updated. It provides quite a bit more detail, some ANS specific (sorry). The URL is:
http://engr.ans.net/route-dumps/
New stuff on this page are:
Listing by border AS - so we know who we can bug if a reachability problem is reported and we know how much will be missing due to filtering on a per border AS basis. It also helps us concentrate on routes passed to us by our direct customers. This would be useful to others if they peer with some of the same border AS.
Reports now include (as of the most recent one):
2477 unregistered prefixes 240 prefixes unreachable due to incorrect origin AS 2 prefixes with no ANS policy 15 prefixes with incorrect ANS policy
2074 prefixes registered with incorrect origin AS (a warning)
Each problem category is also sorted by border AS and origin AS
Pages are available which report on only a specific border AS and/or origin AS. These are useful to anyone wanting to clean up their own AS, since the observed paths for each prefix is provided.
Information is available down to the prefix, with observed AS paths reported, as well as the [sort of encrypted - consider it a bug] ANS policy in cases where ANS policy is thought to be the problem.
Of the 22 border AS with any unregistered prefixes (46 with some sort of problem or warning), the worst offenders are the border AS with over 90 unregistered prefixes:
AS174 (149), AS286 (94), AS568 (166), AS701 (550), AS1239 (1131), AS1800 (443).
There are 398 origin AS with unregistered prefixes, most with just a few.
Curtis
btw- the "15 prefixes with incorrect ANS policy" both seem to be due to a transient where we intentionally do not accept a backup route from the CIX for certain providers we directly peer with yet the CIX was announcing one. The "2 prefixes with no ANS policy" are one prefix origin AS and we addressed this after the report.
__________________________________________________________________________ -------------------------------------------------------------------------- abha ahuja ahuja@merit.edu Merit Network, Inc.