[c-nsp] best PE-CE protocol

[William McCall]

Certainly there are no technical issues with doing OSPF there... and
it may be easier in the long run. In my experience, I like BGP because
we get a lot more flexibility in policies, but I don't think that is
your concern here. The deciding factor for me would be "how familiar
is your customer with BGP vs OSPF?" Pick the one they won't screw up
on and it'll be fine.

--WM

On Fri, Aug 14, 2009 at 12:54 AM, Christopher Hunt<dharmachris at gmail.com> wrote:
> PE1 is a 7200 VXR NPE-1G, PE2 is a 2851 with 512MB , both running 12.4(9)T
> or better.  For this customer, less than 10 vrfs on each PE
>
> On Thu, Aug 13, 2009 at 6:50 PM, William McCall <william.mccall at gmail.com>
> wrote:
>>
>> What kind of boxes are you using for PE? How many VRFs do you have on
>> the box? What code is running?
>>
>> There are limits to the number of OSPF processes (at least on some
>> platforms and code), so I tend to prefer eBGP, but OSPF has its
>> obvious advantages.
>>
>> --William McCall
>>
>> On Thu, Aug 13, 2009 at 5:23 PM, Christopher Hunt<dharmachris at gmail.com>
>> wrote:
>> > Given a customer with a 10mbps fiber connection into PE1 on a L3 MPLS
>> > VPN
>> > and also a backup ADSL link to PE2 on the same provider's L3 MPLS VPN,
>> > what
>> > is the best PE-CE protocol to use?  I assume we could run eBGP over both
>> > links and weight them from the provider's end, as well as the customer
>> > end.
>> > But I'm starting to wonder if PE-CE OSPF wouldn't be a better choice.
>> >  The
>> > customer site only hosts a few /24s and the SP would be the default
>> > route as
>> > the customer is colocating a firewall at the SP's colo.  Any experience
>> > or
>> > opinions would be greatly appreciated.
>> >
>> > Thanks
>> > DC
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>
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