Internet routes, Global Routing table or VRF

Unanswered Question
Apr 5th, 2006
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Best practice, Is that you place all internet peering / transit into Global Routing table or into a MPLS VPN..


What is the benefits / disadvantages of both scenarios


/Peter

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mheusinger Thu, 04/06/2006 - 04:46
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Helo Peter,


my 0.02$

Internet in Global Routing

Pro:

- Wellknown configs and behaviour

- separate address-family (separate route refresh, etc.)

- potentially separate RR for internet

- usual memory consumption

Con:

- larger Global Routing table


Internet in VRF

Pro:

- smaller global routing table

- more (useless?) features like as-override

Con:

- more memory consumption (RD, RTs)

- higher operational risk ("route-target import" could copy internet table into customer VPN)

- more difficult operation (one BGP table, harder to find VPN customer routes)


So guess what: I would have the internet in the global routing table.


Hope this helps! Please rate all posts.


Regards, Martin

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