North American Network Operators Group
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Re: Number of BGP routes a large ISP sees in total

  • From: Mikael Abrahamsson
  • Date: Wed Apr 18 03:18:08 2007

On Tue, 17 Apr 2007, Yi Wang wrote:

sense about the average (e.g., about 5? 10? 20?), as for a "large" ISP.

Well, if you're interconnecting with other large ISPs in 5 places then you'll get each prefix at least 5 times. Having 5 eBGP sessions between two ASes is quite common if both are large ISPs. So yes, I'd say that between 5-10 is quite common.

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Mikael Abrahamsson    email: [email protected]