Re: BGP filtering [7:30172]
Most likely you are correct. The real question is what are you needing to accomplish, what's the problem Dave Hugo M. H. R. Taxa wrote: Recently I was asked to do BGP filtering for a peer thru AS-Macros. I've looked around but can't find any examples of it. I'm at a loss: is BGP filtering thru AS-Macros another fancy name for AS-PATH filtering, or is it something entirely different? If it is different, can anybody point mt to some examples/sources of information on this? Many thanks, Hugo Taxa -- David Madland Sr. Network Engineer CCIE# 2016 Qwest Communications Int. Inc. [EMAIL PROTECTED] 612-664-3367 Emotion should reflect reason not guide it Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=30191t=30172 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: BGP filtering [7:30172]
AS-Macro's are an object in an RPSL based Internet Routing Registry (IRR) that is used to simplify routing policy registration by grouping AS's. See Ripe-181 (rfc 1786). If you happen to build routing policies using RPSL, I expect you can write policies around AS-Macros, though I've no experience doing so. Try posting on the ISP lists, ISP-Routing or ISP-BGP or another similar ISP oriented list or doing some additional reading. At 06:23 AM 12/27/2001 -0500, you wrote: Recently I was asked to do BGP filtering for a peer thru AS-Macros. I've looked around but can't find any examples of it. I'm at a loss: is BGP filtering thru AS-Macros another fancy name for AS-PATH filtering, or is it something entirely different? If it is different, can anybody point mt to some examples/sources of information on this? Many thanks, Hugo Taxa Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=30192t=30172 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: BGP filtering [7:30172]
Good start, RPSL is actually a step forward from RIPE-181. I think RIPE has the best documentation and surely most widely used RPSL databases. The IRR as the collection of databases isn't quite perfectly mirrored nor is the data nearly up to date. As for the question about the application. It sounds like your being asked to filter routes the other networks(probably just customers and peers) are advertising into your network. The nice idea being chased is probably to verify authority to advertise a given route to prevent mistakes and some malicious activity. Various Places to look: http://www.ripe.net/ripencc/pub-services/db/irrtoolset/index.html nee http://www.isi.edu/ra/RAToolSet/ http://www.ripe.net/ http://www.ripe.net/ripencc/pub-services/ http://www.ripe.net/ripe/docs/databaseref-manual.html RPSL in RFC 2622 RFC 2725 Using RPSL RFC 2650 Peter van Oene wrote: AS-Macro's are an object in an RPSL based Internet Routing Registry (IRR) that is used to simplify routing policy registration by grouping AS's. See Ripe-181 (rfc 1786). If you happen to build routing policies using RPSL, I expect you can write policies around AS-Macros, though I've no experience doing so. Try posting on the ISP lists, ISP-Routing or ISP-BGP or another similar ISP oriented list or doing some additional reading. At 06:23 AM 12/27/2001 -0500, you wrote: Recently I was asked to do BGP filtering for a peer thru AS-Macros. I've looked around but can't find any examples of it. I'm at a loss: is BGP filtering thru AS-Macros another fancy name for AS-PATH filtering, or is it something entirely different? If it is different, can anybody point mt to some examples/sources of information on this? Many thanks, Hugo Taxa Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=30290t=30172 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
