nanog mailing list archives
Re: How Not to Multihome
From: Brian Wallingford <brian () meganet net>
Date: Mon, 8 Oct 2007 22:37:34 -0400 (EDT)
On Mon, 8 Oct 2007, Patrick W. Gilmore wrote: :To be clear, I am not suggesting de-aggregating every CIDR down to / :24s. But the global table doesn't grow any more whether the customer :announces the /24 from their own ASN, or if you muti-originate it :from two upstreams - or just one upstream for that matter. So there :is no "legitimate reason" to _not_ announce it, but there is a reason :to announce it. Bingo. And, I'd hazard to guess that many readers of this thread have broken more than a single unwritten rule. I recall being chastised relentlessly years back for doing ibgp over a gre tunnel as I saved up for a real trunk. Guess what - it worked wonders in the short term (though I'll admit I'm embarrassed to rehash it). Bottom line (getting back to the original question) is yes, it's ok, so long as you handle due diligence with the "owner" of the cidr space. RFC, no, courtesy among peers, yup. cheers, brian
Current thread:
- Re: How Not to Multihome, (continued)
- Re: How Not to Multihome Joel Jaeggli (Oct 08)
- Re: How Not to Multihome Justin M. Streiner (Oct 08)
- Re: IPv6 routes, was: How Not to Multihome Mike Leber (Oct 08)
- Re: IPv6 routes, was: How Not to Multihome Keegan . Holley (Oct 08)
- Re: IPv6 routes, was: How Not to Multihome William Herrin (Oct 08)
- Re: How Not to Multihome Keegan . Holley (Oct 08)
- Re: How Not to Multihome Justin M. Streiner (Oct 08)
- Re: How Not to Multihome Patrick W. Gilmore (Oct 08)
- Re: How Not to Multihome Justin M. Streiner (Oct 08)
- Re: How Not to Multihome Patrick W. Gilmore (Oct 08)
- Re: How Not to Multihome Brian Wallingford (Oct 08)
- Re: How Not to Multihome Bill Stewart (Oct 09)
- Re: How Not to Multihome Keegan . Holley (Oct 08)
- Re: How Not to Multihome Justin M. Streiner (Oct 08)
- Re: How Not to Multihome Patrick W. Gilmore (Oct 08)
- RE: How Not to Multihome Jamie Bowden (Oct 09)
- Re: How Not to Multihome Patrick W. Gilmore (Oct 09)
- Re: How Not to Multihome Justin M. Streiner (Oct 09)
- Re: How Not to Multihome Stephen Satchell (Oct 10)