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Cisco 642-661 Exam Syllabus Topics:
| Section | Objectives |
| BGP Route Processing | - Route Selection and Propagation
- 1. BGP best-path selection
- 2. Interdomain route processing
- 3. Route advertisement and propagation
|
| Basic BGP Configuration | - Configuration Tasks
- 1. Advertise networks
- 2. Configure BGP autonomous systems
- 3. Configure eBGP and iBGP neighbors
|
| Advanced BGP Features | - Policy Control and Optimization
- 1. Route aggregation and summarization
- 2. Communities and route attributes
- 3. Policy-based routing decisions
- 4. Route filtering
|
| BGP Troubleshooting | - Verification and Diagnostics
- 1. Troubleshoot neighbor establishment
- 2. Interpret BGP show and debug commands
- 3. Troubleshoot routing and policy issues
- 4. Verify BGP operation
|
| BGP Path Attributes | - Attribute Manipulation
- 1. NEXT_HOP
- 2. MED
- 3. WEIGHT
- 4. LOCAL_PREFERENCE
- 5. ORIGIN
- 6. AS_PATH
|
| BGP Overview | - Introduction to BGP
- 1. Appropriate BGP deployment scenarios
- 2. Enterprise and ISP applications
- 3. BGP limitations
|
| BGP Scalability and Design | - Network Design
- 1. Multihoming design
- 2. Enterprise and service provider deployment
- 3. Confederations
- 4. Route reflectors
|
| BGP Session Establishment | - Neighbor Relationships
- 1. Session establishment process
- 2. BGP neighbor configuration
- 3. BGP message types
|