[c-nsp] MPLS and the global internet routing table

[McCallum, Robert]

Robert McCallum 
CCIE #8757 R&S
01415663448
07818002241 

> -----Original Message-----
> From: no at tjantik.dk [mailto:no at tjantik.dk] 
> Sent: 21 February 2005 16:38
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] MPLS and the global internet routing table
> 
> 
> just realised that I did't put in a subject in my original post ... 
> 
> Hi, 
> 
> We are working on implementing mpls in our network. The 
> network is small 
> (<10 nodes) so we want to run everything on the same box at 
> each node, P/PE 
> and VPN and internet access. We "hired" the c6500/sup720-3bxl 
> to do the job. 
> 
> Starting from scratch with little mpls expirence, your help would be 
> appreciated :) 
> 
> One concern is where to put the global internet routing 
> table. That is, 
> should we put the VPN services ontop of the internet or 
> should we put them 
> into a VRF. We would prefer to put them into a vrf, but 
> without seperate 
> peering routers maybe thats not a good idea ? 

Put the Internet speaking routers into a CsC enviroment.  That way all you
have 
in the vrf is the igp routing table and NOT the full Internet BGP table.


> 
> Should we use public addresses in the "default vrf" to avoid 
> future address 
> conflicts in MP-BGP carrier peerings - regardless of where the global 
> internet routing table lives ? 

I use globally unique IP addresses for the PE router-id's.  That is all.


> 
> Also if you know of whitepapers or books that discusses the 
> deployment 
> issues, do's and don'ts that Service providers face I would 
> appreaciate the 
> reference. 
> 
> /nicolaj 
> 
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