nanog mailing list archives
RE: Policies: Routing a subset of another ISP's address block
From: "Dmitri Krioukov" <dima () dimension net>
Date: Fri, 7 Apr 2000 16:34:16 -0400
-----Original Message----- From: owner-nanog () merit edu [mailto:owner-nanog () merit edu]On Behalf Of Jesper Skriver Sent: Friday, April 07, 2000 2:21 PM To: Daniel L. Golding Cc: David Harrison; nanog () merit edu Subject: Re: Policies: Routing a subset of another ISP's address block Actually I've helped quite a few such customers, my recommendation usually is to get PI space from RIPE, and get both providers to announce it from their ASN, this works quite well, and also save a ASN - if the customer really want to run BGP, we have arrangements with other ISP's here, that we find a private ASN (that none of us use currently), and assign this ASN to the customer, and we then strip the private ASN on the edges of our network.
this is interesting (since it overwrites the rule that multihoming to two isps requires a public asn assignment) and i've tested exactly this scenario (again, a customer uses some private asn and is peering with two isps; both of them strip this asn at their boundaries (remove-private-as)) in my lab before and it worked fine. it results in propagating routes to the same networks with two distinct as path attributes, though. i've been looking for any operational experience with this setup. so, do you claim that you couldn't detect *any* problems with this setup? -- dima.
Current thread:
- Policies: Routing a subset of another ISP's address block David Harrison (Apr 05)
- Re: Policies: Routing a subset of another ISP's address block Jesper Skriver (Apr 05)
- Re: Policies: Routing a subset of another ISP's address block Daniel L. Golding (Apr 05)
- Re: Policies: Routing a subset of another ISP's address block Alexei Roudnev (Apr 05)
- Multi-homing - service provider issues Dustin Goodwin (Apr 06)
- Re: Multi-homing - service provider issues Adrian Chadd (Apr 06)
- Re: Policies: Routing a subset of another ISP's address block Jesper Skriver (Apr 05)
- <Possible follow-ups>
- Re: Policies: Routing a subset of another ISP's address block Daniel L. Golding (Apr 05)
- Re: Policies: Routing a subset of another ISP's address block Jesper Skriver (Apr 07)
- RE: Policies: Routing a subset of another ISP's address block Dmitri Krioukov (Apr 07)
- Re: Policies: Routing a subset of another ISP's address block Jesper Skriver (Apr 07)
- Re: Policies: Routing a subset of another ISP's address block Phillip Vandry (Apr 05)
- Re: Policies: Routing a subset of another ISP's address block Randy Bush (Apr 05)
- Re: Policies: Routing a subset of another ISP's address block Jesper Skriver (Apr 07)
- Re: Policies: Routing a subset of another ISP's address block Jesper Skriver (Apr 07)
- Re: Policies: Routing a subset of another ISP's address block Jesper Skriver (Apr 07)
- RE: Policies: Routing a subset of another ISP's address block Greene, Dylan (Apr 07)
- RE: Policies: Routing a subset of another ISP's address block Dmitri Krioukov (Apr 07)
- The ol' upstream workaround [WAS:Policies: Routing a subset...] Brian Wallingford (Apr 07)
- Re: The ol' upstream workaround [WAS:Policies: Routing a subset...] Brian Candler (Apr 08)
- Re: The ol' upstream workaround [WAS:Policies: Routing a subset...] Jesper Skriver (Apr 09)
- RE: Policies: Routing a subset of another ISP's address block Dmitri Krioukov (Apr 07)