djw // SOSP // 12/99
3
1. Active Networks — Motivation
•Network change is excruciatingly slow
–Widespread consensus, manual deployment
•Consider:
–Congestion (RED ‘93); More Addresses (IPv6 ‘91)
–Security (IPSEC ‘93); Multi-point (IP multicast ‘90)
•Contrast:
–Web (‘93); Quake (‘96); Instant Messaging (‘98)
•
Worth fixing? Your call.
An motivated by key observation: change painful

Don’t just take my word for it …

Compare to other dist systems …

Key difference: can’t just install new code