Page 1 Internet POP Design Lecture 4B Hassan Shuja 03/28/2006.

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Presentation transcript:

Page 1 Internet POP Design Lecture 4B Hassan Shuja 03/28/2006

Page 2 Internet POP Design Point of Presence (POP) –An access point to the Internet –A router is required to interface with the service provider – A CSU/DSU is required for leased lines – CSU/DSU is a hardware device that converts a digital data frame used on the LAN into one that is appropriate for the WAN or Internet –Demarcation point is where the ISP company ends and the private network of the customer begins. –A circuit can be a partial T1 to an OC-255(13.21 Gbps)

Page 3 Internet POP Design Demilitarized Zone (DMZ) Design –A segment or subnetwork that sits between a trusted internal network and an untrusted external network – Typically DMZ include web, FTP, SMTP, and DNS servers – A DMZ can reside off of a router or firewall