Tag Archives: mpls vpn

MPLS: OSPF sham-links

Posted on June 1, 2012 by

Introduction The provider’s MPLS cloud has three routers namely – R1 (P-router), R2 (PE-R2) and R3 (PE-R3). These routers formed OSPF adjacency with one another. R2 and R3 are iBGP neighbors peering with each other’s loopback address. The TTL propagation … Continue reading →

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MPLS Layer 3 VPN

Posted on May 24, 2012 by

Acknowledgement Without MR.Keith Barker’s 21 minutes video instruction, constructing MPLS VPN lab will take a longer time. His 21 minutes video instruction summarizes all. MR. Keith Barker has amazing skills to translate complicated concepts into simpler and easier to understand … Continue reading →

Posted in BGP, MPLS, OSPF, Route, WAN | Tagged , , , , , | Leave a comment

MPLS VPN: VRF

Posted on May 2, 2012 by

MPLS VPN building blocks 1. Virtual routing and forwarding (VRF) – This creates logical routing instance, each virtual instance is separated such that virtual instances to instances are not reachable. 2. MP-BGP – BGP is extended to distribute MPLS VPN … Continue reading →

Posted in MPLS, Security, WAN | Tagged , , , , , | 4 Comments