OSPF vs IS-IS vs PrivateAS eBGP

Glen Kent glen.kent at gmail.com
Sat Sep 12 00:35:27 UTC 2009

I seem to get the impression that isis is preferred in the core. Any
reasons why folks dont prefer to go with ospf?


On Thu, Aug 20, 2009 at 3:36 PM, Randy Bush <randy at psg.com> wrote:
>> Unless you want your customers to have very substantial control over
>> your  internal network, don't use an SPF IGP like ospf or is-is.
>                                              with your customer ^
> i know that's what you meant, but i thought it worth making it very
> explicit.
> practice safe routing, do not share blood with customer.
> is-is in core with ibgp, and well-filtered ebgp (and packet filters a la
> bcp 38) to customers.
> randy

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