[c-nsp] IP SLA?

[Gert Doering]

Hi,

On Sun, Mar 29, 2015 at 06:46:40AM +0200, Mark Tinka wrote:
> >Downsides of OSPF vs. EIGRP in this scenario?
> 
> I just think it's a terrible idea running an IGP with a customer.
> 
> I mean, I see the benefit from a link failure detection point of view, 
> but an IGP is still an IGP - and that "I" stands for Interior.

EIGRP can be filtered just as well as BGP, and has much nicer convergence
properties.  

OSPF would theoretically be unviable ("all link-state routers need to 
agree on any garbage anyone injects") but since IOS actually does support
incoming filters on OSPF routes, it also works.

Don't forget to put up the filters, you really don't want the customer to
inject arbitrary things into your routing...

Also, do not make the customer part of your "normal" IGP - set up a dedicated
instance of whatever protocol you decide on for "talking to customers", and
carefully redistribute from there to your core routing protocol.

gert
-- 
USENET is *not* the non-clickable part of WWW!
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Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de
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