Tag Archives: VRF

MPLS Layer 3 VPNs

Posted on September 16, 2009 by Jeff

In the following diagram we have a very Basic MPLS network to demonstrate how MPLS Layer 3 VPNs work.  In the  Service Provider cloud we are running OSPF between R3,R1,R5, and R6. R3 and R6 are running BGP within the … Continue reading →

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MPLS Basics

Posted on August 19, 2009 by Jeff

MPLS Study Notes Terminology Penultimate Hop Popping RFC 3031 Multiprotcol Transport diff payloads -Ethernet, FRLY, ATM,IPv4, IPv6 Layer 3 MPLS VPN (RFC2547) will be the focus of the 4.0 R&S Exam. Label Switching Labels used to route(switch)traffic instead of normal … Continue reading →

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