Speaker: Fred Cannone, Director of Sales and Marketing With commentary by Akio Sugeno, Vice President of Internet Engineering, Operations, and Business Development
Peering 101: Agenda TELEHOUSE Introductions Purpose of this webinar What is the Internet? What is Internet traffic mean? How do ISPS connect to each other? What are Internet Routes & How do they Work? Transit vs. Peering What a well architected network connects? What is Peering and its Benefits? Peering Types?
Each ISP has: -Code Name (ASN) Autonomous System Number -owns routes or addresses - similar to ZIP code / street address relationship.
IP Address space e.g. 126.96.36.199/24 (254 addresses)
ZIP 12345 ISP-A ASN: 12345 10 Main St. 25 Wood Ave. 188.8.131.52/24 184.108.40.206/24 8 Copyright Telehouse America 2010
How do Internet routes work? (Inbound) To Receive Traffic…
An ISP has to announce (BGP) its routes (or addresses) to the Internet in order to receive the traffic destined to the route.
ISP-A I have the route. Send traffic to that route to me! Internet Announces BGP e.g. 220.127.116.11/24 9 Copyright Telehouse America 2010
How do Internet routes work? (outbound) 10 To Send Traffic…
ISP must have full routes announced (BGP) to the Internet and keep them in its routing table to ensure global reachability to its customers.
Its routers make a routing decision based on its routing table.
Where is the destination route in my routing table? 18.104.22.168/24 Send the traffic to port 1, slot 2, on NY#1 router Found it! Copyright Telehouse America 2010
Transit vs. Peering 11 The best network architecture:
Combines transit and peering
Copyright Telehouse America 2010
How an ISP/YOU, well architected network, connects to the Internet 12
Minimize (bps) Transit & Max Peering traffic
Standard ISP architecture: Partial Routes to/from “The” ISP (*) A, B, C, …. Z Full Routes B A ISP/You Transit Peering Tier 1 ISP D C E Z Pay $$$ Free Large (Tier 1) Provider(s) (*) When peering with ISP-A, you can get routes from/to ISP-A only (partial routes) Regional or local providers Copyright Telehouse America 2010
What is Peering? Peering is simply the settlement free exchange of internet traffic.
Benefits? ….saves money Transit costs money….Peering is FREE!
- Peering protocol (BGP) requires L2 - Up to 10G Port Wire-speed guaranteed - Optional jumbo frame for optimal MTU - Optional VLAN for private peering - Readily Scalable to higher speed (40/100G) Copyright Telehouse America 2010