Caching example: install local cache
{"Image DocumentName": "Caching example: install local cache", "Image ImageDescription": "assumptions: avg object size: 100K bits. avg request rate from browsers to origin servers:15/sec. avg data rate to browsers: 1.50 Mbps. RTT from institutional router to any origin server: 2 sec. access link rate: 1.54 Mbps. consequences: LAN utilization: 15% access link utilization = 100% total delay = Internet delay + access delay + LAN delay. = 2 sec + minutes + usecs. origin. servers. public. Internet Mbps. access link. institutional. network. ? 1 Gbps LAN. ? local web. cache. How to compute link. utilization, delay? Cost: web cache (cheap!) H. Fauconnier. M2-Internet.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}