ocr: seatie Saren pevens BR - 1o0 AIRO FRIe MNSE Chcasa GENS arene: S2MM o - san rancisco LLaussale M PAIXE emertino Denver Rtant NAE East naeard soAtNent SASAPSNA & MAEVESL a StLouis RaATC - D OLANCE - AER Os Anceles Sprent TNE MACLA Ss Kong Sar 0:090 Allana - Dalas a AES aer - 4 X009re HONDROIS à : source CONCANR Netvon Figure 1. Concentric Network's infrastructure has ouilt-in redundancy that includes multiple POPS, host sites, and services from multiple carriers. Connections are. routed along multiple fiber paths from different vendors. The network is based on an ATM/frame relay backbone.