Multiprotocol Label Switching - MPLS VPNs - MPLS VPN Control Plane
5 important questions on Multiprotocol Label Switching - MPLS VPNs - MPLS VPN Control Plane
What are the three main concepts for VRF?
-A CEF FIB (populated based on RIB)
-Separte instance/process of routing protocol to exchange routes with CE that need to be supported by the VRF
How does BGP advertise RTs in BGP updates?
Why does MPLS use route targets?
MPLS route targets enable MPLS to support sites to be reachable from multiple customers/VPNs
c-IdRoute leaking
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How can mpls support overlapping VPN's for different customers?
(By leaking a route into the different VRFs)
How much VRFs are necesarry for a customer A to reach a centralized VPN Services?
-One VRF for import routes of customer A
- Second VRF for importing customer routes A and the routes to reach centralized VPN services
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