UDP

Why TCP Should Never be Used for Speed Tests

I understand the argument: Since there is so much TCP (HTTP anything, etc. etc.) this is what the user experiences. That argument has several issues. First, we need to discuss the problems with using TCP at all as there are technical reasons the idea does not align with the goal of speed tests. Second, the […]

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UDP and TCP Port Number Usage in ACL’s in Cisco IOS

Leave a Comment / Cisco Router and IOS How To's / By Andrew Walding

As most of us know, a key to managing the Internet is knowledge of TCP and UDP port numbers. Cisco IOS uses Access Control Lists for many purposes, but in this tip, we will focus on TCP and UDP port numbers. Port numbers are unique, well-known, registered or ephemeral numbers used by TCP (Transmission Control

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