Building Cisco Scalable Internetworks

Audience
Network administrators and technicians who are responsible for implementing and troubleshooting complex routed network environments. CCIP, CCNP and CCDP candidates CCIE Routing and Switching candidates CCIE Communications & Services candidates.
   

Duration

 5 Days
   
Course Abstract
Building Scalable Cisco Internetworks (BSCI) focuses on using Cisco routers connected in LANs and WANs typically found at medium to large network sites. The course provides the learner with in-depth information on these interior gateway protocols (IGPs): Enhanced Interior Gateway Routing Protocol (EIGRP), Open Shortest Path First (OSPF), and Intermediate System-to-Intermediate System (IS-IS). It also provides information on Border Gateway Protocol (BGP), an exterior gateway protocol (EGP). The course covers routing principles of both distance vector and link-state routing protocols; IP addressing techniques; the theory behind the EIGRP, OSPF, IS-IS, and BGP routing protocols; and configuration and troubleshooting information for each protocol. Hands-on lab exercises allow the learner to practice configuration and troubleshooting knowledge and to acquire the skills necessary to configure these protocols in customer networks. Upon completing this course, the learner will be able to select and implement the appropriate Cisco IOS? services required to build a scalable, routed network. BSCI is part of the recommended learning path for students seeking the Cisco Certified Internetworking Professional (CCIP), Cisco Certified Network Professional (CCNP), Cisco Certified Design Professional (CCDP), and Cisco Certified Internetwork Expert (CCIE) certifications. NOTE: BSCI v1.2 represents a minor revision to the existing Building Scalable Cisco Networks (BSCN) v1.1 course. BSCI v1.2 adds a module to address the IS-IS protocol, but the learning objectives are otherwise equivalent.

   
Objectives

After completing this course the student should be able to:

  • Understand the principles of classful and classless routing and the difference between link-state and distance vector protocol behavior
  • Select and configure the appropriate services for simplifying IP address management at branch offices by proper address allocation and summarization
  • Implement the appropriate technologies for a scalable, routed network that uses link-state protocols and redistribution
  • Configure edge routers to properly interconnect to a BGP network through either a single or multihomed interconnection
  • Control and optimize routing update information by implementing filters, metrics, and policy-based routing and changing administrative distance
  • Examine case studies that show you how to build a scalable internetwork including multiple routing protocols
   
Class Format Lecture and Lab
   
Prerequisites

Working knowledge of Cisco networking protocols.
Course Topics

The following list represents the sections and topics discussed in this onsite instructor-led course offering:
 
   

Module 1: Routing Principles

  • List key information routers need to route data
  • Describe classful and classless routing protocols
  • Compare distance vector and link-state protocol operation
  • Describe the use of the fields in a routing table
  
   

Module 2: Extending IP Addresses

  • Given an IP address range, use VLSMs to extend the use of the IP addresses
  • Given IP addressing, explain if route summarization is possible
  • Configure an IP helper address to manage broadcasts
  
   

Module 3: Configuring OSPF in a Single Area

  • Explain why OSPF is better than RIP in a large internetwork
  • Explain how OSPF discovers, chooses, and maintains routes
  • Explain how OSPF operates in a single area NBMA environment
  • Configure OSPF for proper operation in a single area
  • Verify OSPF operation in a single area
  • Configure a single-area OSPF environment and verify proper operation
  • Configure single-area OSPF in an NBMA environment and verify proper operation
 
   

Module 4: Interconnecting Multiple OSPF Areas

  • Describe the issues with interconnecting multiple areas and how OSPF addresses each
  • Explain the differences between the possible types of areas, routers, and LSAs
  • Explain how OSPF supports the use of VLSM
  • Explain how OSPF supports the use of route summarization in multiple areas
  • Explain how OSPF operates in a multiple area NBMA environment
  • Configure a multiarea OSPF network
  • Verify OSPF operation in multiple areas
  • Configure a multiple area OSPF environment and verify proper operation
 
   

Module 5: Configuring EIGRP

  • Describe Enhanced IGRP features and operation
  • Explain how EIGRP discovers, chooses, and maintains routes
  • Explain how EIGRP supports the use of VLSM
  • Explain how EIGRP operates in an NBMA environment
  • Explain how EIGRP supports the use of route summarization
  • Describe how EIGRP supports large networks
  • Configure Enhanced IGRP
  • Verify Enhanced IGRP operation
  • Configure an Enhanced IGRP environment and verify proper operation
  • Configure Enhanced IGRP in an NBMA environment and verify proper operation
 
   

Module 6: Configuring Basic Border Gateway Protocol

  • Describe BGP features and operation
  • Connect to another autonomous system using an alternative to BGP, static routes
  • Explain how BGP policy-based routing functions within an autonomous system
  • Explain how BGP peering functions
  • Describe BGP communities and peer groups
  • Describe and configure external and internal BGP
  • Describe BGP synchronization
  • Configure a BGP environment and verify proper operation
  
   

Module 7: Implementing BGP in Scalable Networks

  • Describe the scalability problems associated with internal BGP
  • Explain and configure BGP route reflectors
  • Describe and configure policy control in BGP using prefix lists
  • Describe methods to connect to multiple ISPs using BGP
  • Explain the use of redistribution between BGP and Interior Gateway Protocols (IGPs)
  • Configure a multi-homed BGP environment and verify proper operation
 
   

Module 8: Optimizing Routing Update Operation

  • Select and configure the different ways to control routing update traffic
  • Configure route redistribution in a network that does not have redundant paths between dissimilar routing processes
  • Configure route redistribution in a network that has redundant paths between dissimilar routing processes
  • Resolve path selection problems that result in a redistributed network
  • Verify route redistribution
  • Configure policy-based routing using route maps
  • Configure redistribution between different routing domains and verify proper operation
  • Configure policy-based routing within your pod and verify proper operation