ISP Workshop Agenda Phithakkit Phasuk

Agenda Day One: Introductions Presentations  - Introduction to OSPF”, “OSPF for ISPs Lab Module 1 – Basic OSPF & iBGP Presentation  - Introduction to BGP Lab Module 1 (continued) Presentation  - BGP Attributes and Policy Control

Agenda Day Two: Lab Module 2 – iBGP and Basic eBGP Lab Module 3 – Advanced BGP Presentation - BGP Scaling Techniques Lab Module 3 (continued) Presentation  - BGP Best Current Practices Lab Module 4 – Multihoming Strategies

Agenda Day Three: Lab Module 5 – BGP Configuration BCP Presentation - IOS Essentials for ISPs Lab Module 6 – OSPF Areas Presentations  - BGP Scaling Techniques – Route Reflector Lab Module 7 – Route Reflector Lab Module 7 – Route Reflector Lab Module 8 – IOS Essentials

BGP Route Selection Process Before anything -- if a route is not synchronized, it is thrown out!! The address/network given for the next hop is available in the IP routing table The route with the highest Weight attribute (the Weight attribute is Cisco proprietary) The route with the highest Local_Preference attribute Any routes that were learned Locally self-originated (next-hop = 0.0.0.0) The route with the shortest AS_Path attribute (confed learned paths are not included.) The route with the lowest Origin [internal (0), external (1), incomplete (2)] The route with the lowest Multi-Exit Discriminator (MED) The route learned via EBGP (iBGP routes are discarded at this point) The route with the nearest IGP neighbor The oldest learned route The route with the lowest BGP router-id

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