Free Cisco Lab

This free GNS3 lab is an effort to provide a better understanding of Multiprotocol Label Switching (MPLS) and how to configure it on Cisco IOS routers.

MPLS is a mechanism in high-performance telecommunications networks that directs data from one network node to the next based on short path labels rather than long network addresses, avoiding complex lookups in a routing table. The labels identify virtual links (paths) between distant nodes rather than endpoints. MPLS can encapsulate packets of various network protocols. MPLS supports a range of access technologies, including T1/E1, ATM, Frame Relay, and DSL.

Task required to configure MPLS on Cisco IOS routers are as follows:

1. Enable MPLS on the provider backbone.
2. Create VRFs and assign routed interfaces to them.
3. Configure MP-BGP between the PE routers.
4. Configure EIGRP between each PE router and its attached CE routers.
5. Enable route redistribution between the customer sites and the backbone.

Learning Objectives:

• Review of basic router configuration.
• Review of configuration of OSPF and EIGRP routing protocols.
• Review route redistribution.
• Understand and configure MPLS.
• Understand and configure VRFs.

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