Table of Contents
BGP/MPLS VPN
Road map
Road map
Multi-protocol Label Switching (MPLS)
Original drivers towards label switching
MPLS benefits
MPLS Terminology
Block Diagram of Label Switch Router
Label Distribution Protocol (LDP)
Label Switched Path (LSP)
Road map
Border Gateway Protocol (BGP)
Autonomous System (AS)
Architecture of Dynamic Routing
BGP version 4
General operation
BGP Route Processing
Four types of BGP messages
BGP attributes
Two types of BGP neighbour relationships
Road map
Virtual Private Network (VPN)
What is VPN?
Virtual Private Network Evolution
Overlay VPN model
Peer-to-Peer VPN model
Road map
BGP/MPLS VPN
BGP/MPLS VPN Overview
Network Components
Operational Model
Sample network topology
First Control Subflow
Second Control Subflow
Data Flow
Benefits of BGP/MPLS VPN
Challenges and Solutions
Overlapping customer address spaces
VPN-IPv4 address family
Multiprotocol BGP Extensions (MP-BGP)
Constraining network connectivity
Multiple forwarding tables
BGP extended community attributes
Hub-and-spoke VPN Connectivity
Maintaining updated VPN Routing Information
Case study
Road map
Conclusion (Pros)
Conclusion (Cons)
Reference (1)
Reference (2)
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