To Be Multihomed: Requirements and Definitions
Why this topic?
A Gap (1)
A Gap (2)
Useful Web Pages
IETF References
Target audience for this info
Goal 1: Server availability to arbitrary users
The User You Hate to Want
That’s all very nice. Clearly, you aren’t able to do what I want to pay for. Can you refer me to whoever is in charge of the Internet?
Key Points to Educate this Customer
Goal 2: User connectivity to arbitrary servers
Goal 3: Enterprise connectivity to selected partners
Goal 4: Enterprise WAN Outsourcing
Planning & Budgeting
Customers need to think about technical tradeoffs
Solution Family 1: Application/Transport/Name Multihoming
Solution Family 2: Layer 3/2 Multihoming
Solution Family 3: Medium/Transmission Multihomng
Multiple server addresses in DNS
Application caching
DNS-routing linkage
AIIIEEE! A Black Hole!
Multiple defaults advertised into IGP
Customer Advertising to You with Interior Routing Protocol
End User RIP Intended Usage
End User RIP Problems
End User RIP Enterprise and ISP Protective Measures
Provider Filtering
BGP tunnel over multiple media
BGP primary/backup
Full BGP
Transmission System Protection
Actions
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