Table of Contents
BGP Best Current Practices
What is BGP for??
BGP versus OSPF/ISIS
BGP versus OSPF/ISIS
BGP/IGP model used in ISP networks
BGP versus OSPF/ISIS
Aggregation
Aggregation
Configuring Aggregation: Cisco IOS
Aggregation
Announcing Aggregate: Cisco IOS
Announcing an Aggregate
The Internet Today (May 2006)
Efforts to Improve Aggregation: The CIDR Report
Efforts to Improve Aggregation: The CIDR Report
Aggregation Potential
Aggregation: Summary
Receiving Prefixes
Receiving Prefixes from downstream peers
Receiving Prefixes: Cisco IOS
Receiving Prefixes from upstream peers
Receiving Prefixes from upstream peers
Receiving Prefixes from upstream peers
Receiving Prefixes from upstream peers
Receiving Prefixes
Generic ISP BGP prefix filter
Prefixes into iBGP
Injecting prefixes into iBGP
Router configuration: network statement
Injecting prefixes into iBGP
Router Configuration: redistribute static
Injecting prefixes into iBGP
Configuration Tips
Templates
BGP Template – iBGP peers
BGP Template – iBGP peers
BGP Template – eBGP peers
BGP Template – eBGP peers
More BGP “defaults”
Configuration Tips Summary
Summary – BGP BCP
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