nanog mailing list archives
RE: useful bgp example
From: "Jeff Harper" <jharper () first-american net>
Date: Wed, 19 May 2010 13:37:32 -0500
-----Original Message----- From: Jared Mauch [mailto:jared () puck nether net] Sent: Wednesday, May 19, 2010 1:29 PM To: Jeff Harper Cc: Deric Kwok; nanog () nanog org Subject: Re: useful bgp example Nice, but you don't show it as-path filtering your transits out. I frequently see people take something learned from transit A and
sending
it to transit B, and if it happens to be the backup path in-use for your customer, your transits will accept it and likely pick you as best-path and hairpin through your network. - Jared
Yeah, I left out the actual prefix-list contents, in hindsight I should have added it, so here it is. Also, a typo in the network statement, lol. network 1.1.1.0 mask 255.255.0.0 ip prefix-list NETZ description The networks we advertise via BGP ip prefix-list NETZ seq 10 permit 1.1.1.0/16 ip prefix-list NETZ seq 1000 deny 0.0.0.0/0 le 32
Current thread:
- Re: useful bgp example, (continued)
- Re: useful bgp example Doug Barton (May 17)
- Re: useful bgp example Jason J. W. Williams (May 17)
- Re: useful bgp example Valdis . Kletnieks (May 17)
- Re: useful bgp example Vincent C Jones (May 18)
- Re: useful bgp example Jared Mauch (May 17)
- Re: useful bgp example Steve Bertrand (May 17)
- Re: useful bgp example Steve Bertrand (May 17)
- Re: useful bgp example Colby Glass (May 18)
- RE: useful bgp example Jeff Harper (May 19)
- Re: useful bgp example Jared Mauch (May 19)
- RE: useful bgp example Jeff Harper (May 19)
- Re: useful bgp example Dan White (May 19)
- Re: useful bgp example Jim Burwell (May 19)
- RE: useful bgp example Vincent C Jones (May 19)
- Re: useful bgp example Jian Gu (May 22)
- RE: useful bgp example Jeff Harper (May 24)
- Re: useful bgp example Jared Mauch (May 19)
