nanog mailing list archives
Re: Multi site BGP Routing design
From: Steve Bertrand <steve () ibctech ca>
Date: Fri, 05 Jun 2009 20:40:03 -0400
John.Herbert () ins com wrote:
Depending on your security policies you may want to encrypt said tunnel also. Other than that, it all depends on it all depends. For example - if you receive / or have a default route pointing to the ISP, then the fact you have the same AS and won't receive the other site's routes in BGP doesn't matter at all - you'll follow a default from site 1 to the ISP, and the ISP will have a route to site 2 and can pass the traffic in the right direction. If you don't mind your traffic being passed unencrypted over the Internet, that is. You'll obviously need to adapt your firewall policies to allow for that flow as well.
Personally, I don't really like the tunnel idea... I've had to deal with them for v6 connectivity, and they seem so 'ugly'. My first thoughts were about de-aggregation, but since he's already advertising different space out of each site, that became irrelevant. I was just thinking that two AS numbers would be the cleanest, easiest to maintain method for him to take. Certainly tunnelling did go through my mind though to ensure site-to-site peering over the Internet. Steve
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Current thread:
- Multi site BGP Routing design Justin Krejci (Jun 05)
- Re: Multi site BGP Routing design Steve Bertrand (Jun 05)
- Re: Multi site BGP Routing design Chris Adams (Jun 05)
- RE: Multi site BGP Routing design John.Herbert (Jun 05)
- Re: Multi site BGP Routing design Steve Bertrand (Jun 05)
- RE: Multi site BGP Routing design John.Herbert (Jun 05)
- Re: Multi site BGP Routing design Chris Adams (Jun 05)
- Re: Multi site BGP Routing design Steve Bertrand (Jun 05)
- Re: Multi site BGP Routing design Michael K. Smith (Jun 05)
- Re: Multi site BGP Routing design Steve Bertrand (Jun 05)
- RE: Multi site BGP Routing design Ivan Pepelnjak (Jun 06)
- Re: Multi site BGP Routing design Saqib Ilyas (Jun 06)
- Re: Multi site BGP Routing design Adam Greene (Jun 06)
- RE: Multi site BGP Routing design Justin Krejci (Jun 08)
- RE: Multi site BGP Routing design Ivan Pepelnjak (Jun 09)
- Re: Multi site BGP Routing design Steve Bertrand (Jun 05)