Traceroutes with AS info (2)
TTM approach:
- pure & fastest traceroute: no hostname nor AS lookup
- add AS numbers offline, when data are processed at central location
- in time, prefixes can move from one AS to another store result in tracerouteDB
Advantages
- allows for different sources of AS info (IRR, RIS, …)
- optimized by caching mechanism: lookup uniqueIP’s only once (typical day: 3000 IP’s in 500,000 traceroutes)