Cisco 642-661 : CCIP Configuring BGP on Cisco Routers (BGP)

  • Exam Code: 642-661
  • Exam Name: CCIP Configuring BGP on Cisco Routers (BGP)
  • Updated: Sep 29, 2026
  • Q & A: 204 Questions and Answers

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Cisco 642-661 Exam Syllabus Topics:

SectionObjectives
Route Selection and Policy Control- BGP path selection process
  • 1. Local preference and MED attributes
    • 2. AS-path and weight manipulation
      - Policy implementation
      • 1. Route maps and filtering (prefix lists, AS-path filters)
        BGP Configuration- Basic BGP setup on Cisco routers
        • 1. Neighbor relationships and peering
          • 2. Network statements and route advertisement
            Scalability Features- iBGP scalability
            • 1. Confederations
              • 2. Route reflectors
                BGP Fundamentals- BGP protocol overview and characteristics
                • 1. eBGP vs iBGP differences
                  • 2. Path vector behavior and BGP basics
                    Troubleshooting and Security- BGP troubleshooting techniques
                    • 1. Neighbor state issues and session debugging
                      - Security mechanisms
                      • 1. Prefix filtering and route validation
                        Advanced BGP Operations- BGP redistribution
                        • 1. Redistribution between BGP and IGP protocols
                          - Route aggregation and summarization
                          • 1. CIDR and aggregation strategies

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