To Design Mpls Vpn for a Company

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PROJECT REPORT ON TO DESIGN A LAYER 3 MPLS VPN (Multiprotocol Label Switching Protocol Virtual Private Network ) FOR A CUSTOMER WITH DIFFERENT LOCATIONS C O N T E N T S 1. INTRODUCTION 2. ABOUT THE PROJECT ► Problem statement ► Proposed solution ► Objectives 3. PROJECT DESCRIPTION ► Multiprotocol Label Swithcing(MPLS) ■ Architecture ■ How does it work ■ CEF Switching ■ Advantages ► Virtual Private Network(VPN) ■ Terminologies ■ Implementation Techniques ■ Features ►MPLS VPN ■What is it ? ■Working ■Security…show more content…
Here, a router builds a table (called routing table) as how a packet should be forwarded through which interface, by using either statically configured statements (called static routes) or by exchanging information with other routers in the network through a dynamical routing protocol, Control plane maintains contents of the label-switching table (label forwarding information base, or LFIB). Data plane has a simple forwarding engine. It is a very simple mechanism.It does not involve any tables. MPLS CONTROL AND DATA PLANE COMPONENTS [pic] ■ HOW DOES IT WORK MPLS works by prefixing packets with an MPLS header, containing one or more "labels". This is called a label stack. Each label stack entry contains four fields: ● A 20-bit label value. ● A 3-bit Traffic Class field for QoS (quality of service) priority (experimental) and ECN (Explicit Congestion Notification). ● A 1-bit bottom of stack flag. If this is set, it signifies that the current label is the last in the stack. ● An 8-bit TTL (time to live) field. These MPLS-labeled packets are switched after a label lookup/switch instead of a lookup into the IP table. As mentioned above, when MPLS was conceived, label lookup and label
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