Cogent Communications

Tier 1 ISP backbone provider

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Episodes

#3901: Traceroute Beyond the Basics: Path Diagnostics

Discover what traceroute actually reveals about network paths, firewalls, and multi-WAN failover.

Jun 25
#3808: Tracing a Packet: 3 Home Switches vs the Internet Backbone

Three home switches add 36 microseconds. Your cable modem adds 5-15 milliseconds. Let's follow a packet from phone to Google News.

Jun 21
#3806: Why 88% of Fiber Optic Cable Sits Dark

Individual glass strands, thinner than hair, stretching miles with no light. Why does most installed fiber sit unused?

Jun 21