[c-nsp] Customers routers

Mohammad Khalil eng_mssk at hotmail.com
Sat Sep 4 20:57:46 EDT 2010


Thanks all for youir help
actually the setup now does not hold any MPLS configuration , they use a subnet of mine and point to point connection and i use OSPF in the backbone to advertise to the core routers and then using BGP to advertise all 

> From: BBlackford at nwresd.k12.or.us
> To: mksmith at adhost.com; eng_mssk at hotmail.com; cisco-nsp at puck.nether.net
> Date: Sat, 4 Sep 2010 16:39:14 -0700
> Subject: RE: [c-nsp] Customers routers
> 
> +1
> 
> If the customers are coming to you with their own netblock, then it's likely they have their own ASN. If they're using a block of your address space then they announce on a private ASN and you remove-private-as.
> 
> Customers using OSPF could accidentally hijack prefixes leaving us little to no tools for filtering or preventing it.
> 
> Use OSPF/ISIS for interconnects, loopbacks, infrastructure links. *Data/Content* prefixes go into BGP.
> 
> 
> -b
> 
> 
> 
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Michael K. Smith
> Sent: Saturday, September 04, 2010 4:17 PM
> To: Mohammad Khalil; cisco-nsp
> Subject: Re: [c-nsp] Customers routers
> 
> 
> 
> 
> On 9/3/10 4:07 PM, "Mohammad Khalil" <eng_mssk at hotmail.com> wrote:
> 
> > 
> > hi all
> > 
> > we use OSPF to transport customers routers into our backbone , i read in one
> > of Cisco presentations that its best to use BGP for the same purpose
> > 
> > your opinions please
> > 
> 
> In my opinion, BGP is best for inter-AS communications.  Granted, your
> customer may not have their own AS, but they are autonomous from your
> network, so the buffer that BGP provides is more suited to the task.  With
> BGP, you don't have to worry about what the customer network looks like.
> Since it's an autonomous system, you only receive and announce routes
> according to what is configured.  With OSPF, your customer has an increased
> ability to affect the routing within your domain.
> 
> Regards,
> 
> Mike
> 
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