Content

Building Core Networks with BGP, OSPF, and MPLS v1.0

This set of lab exercises (lab bundle) contains advanced BGP, OSPF, and MPLS exercises associated with the NIL Building Core Networks with BGP, OSPF and MPLS (NIL_BCMPL) course. In the first exercise you will configure a complex hierarchical OSPF network that will provide redundancy and optimal performance. The second exercie focuses on IGP and BGP related scalability issues and on troubleshooting various routing problems in Service Provider backbones. You also practice the MPLS VPN implementation scenarious, such as overlapping MPLS VPN and Internet access from a VPN. In addition, the Inter-AS aspects of MPLS VPNs (Carrier`s Carrier) and MPLS Traffic Engineering applications within MPLS VPNs are covered.

Content

This set of lab exercises contains the following exercises:

Objectives

Upon finishing this set of exercises, you will be able to:
Configure OSPF in multiple areas

  • Summarize the subnets in a non-backbone OSPF area
  • Configure OSPF area to be a stub area
  • Configure OSPF area to be a totally stubby area
  • Adjust the OSPF area default cost
  • Configure an OSPF virtual link to support OSPF areas not directly connected to area 0
  • Verify the OSPF database in a multiple area setup
  • Configure OSPF in multiple areas
  • Configure OSPF in Frame Relay environment using OSPF point-to-point network type
  • Configure OSPF in Frame Relay environment using OSPF NBMA network type
  • Configure OSPF in Frame Relay environment using OSPF point-to-multipoint network type
  • Influence OSPF DR election in a hub and spoke topology
  • Configure IBGP full mesh in a transit AS
  • Configure BGP synchronization in modern transit AS design
  • Adjust IGP routing to fit the needs of BGP routing
  • Configure inbound AS-path filters typical for customer-to-provider connectivity
  • Configure outbound AS-path filters typical in ISP peering environments
  • Establish MPLS VPN infrastructure in a Service Provider backbone
  • Migrate a customer from global routing to a simple VPN
  • Configure VRF tables needed for simple VPN
  • Configure static routes and RIP in VPN
  • Configure redistribution between RIP running in VPN and MP-BGP
  • Configure RIP metric propagation across MP-BGP
  • Monitor MPLS VPN operations
  • Configure overlapping VPN networks
  • Configure VRFs with multiple route targets
  • Configure VRFs with different route distinguishers in the same VPN network
  • Monitor and troubleshoot overlapping virtual private networks
  • Create and configure an Internet VPN
  • Isolate Internet routing from the MPLS VPN backbone
  • Establish Internet connectivity between the VPN customers and the Internet VPN
  • Monitor Internet service as a separate VPN
  • Develop a migration plan from dedicated inter-site links to connectivity provided by an MPLS VPN Service Provider
  • Deploy CsC solutions in which a MPLS VPN Service Provider offers inter-site connectivity to other Service Providers
  • Establish MPLS label exchange on PE-CE links, establishing an end-to-end LSP between CE-routers of an MPLS VPN network
  • Configure MPLS TE support on a Cisco IOS router
  • Enable individual interfaces for MPLS TE
  • Configure MPLS TE support in Integrated IS-IS routing protocol
  • Configure simple TE tunnels using dynamic path option
  • Monitor MPLS TE tunnels and topology
  • Configure explicit MPLS TE routes with dynamic fallback options
  • Use interface TE attributes and tunnel affinity bits to influence the tunnel path selection
  • Configure backup TE tunnels
  • Use relative autoroute metrics to influence the path selection process in presence of backup tunnels

Importance

The lab bundle is an integral part of the NIL Building Core Networks with BGP, OSPF and MPLS (NIL_BCMPL) course but is recommended to be taken individually as well by engineers responsible for BGP, OSPF, MPLS VPN, and MPLS TE design and implementation in Service Provider backbones.

Target Audience

The lab bundle is targeted at pre- and post-sales technical support engineers who have to design and implement BGP, OSPF, MPLS VPN, and MPLS TE in Service Provider backbones.

Prerequisite Knowledge

To successfully complete the exercises in this lab bundle, you need a working knowledge and practical experience with OSPF, IS-IS, and BGP routing protocols, and with MPLS technologies. You have to possess skills in configuring Cisco IOS as well. This knowledge can be gained by attending the Building Scalable Cisco Internetworks (BSCI), Configuring BGP on Cisco Routers (BGP), Implementing Cisco MPLS (MPLS), and Applying MPLS in Service Provider Backbones and Scaling BGP (MPLS_SPBGP) courses.