The two most common transport layer protocols are the transmission control protocol (TCP) and the user datagram protocol (UDP). One of the main differences between the two protocols is reliability.

This excerpt is from CCIE Voice Exam Quick Reference Sheets (Digital Short Cut), by Mark Lewis and published by Cisco Press. ISBN-10: 1-58705-333-0 Read Mark Lewis’ blog for Cisco Subnet here. More ...

When people speak of voice over IP, just concentrating on IP may tend to oversimplify the process. IP is only a part of the requisite protocol stack. Going down the protocol stack (toward the physical ...

Microsoft this week described QUIC, an Internet transport layer protocol alternative to the venerable Transmission Control Protocol (TCP), in an announcement. QUIC 1.0 is "less than 4 months old" but ...

The purpose of the network layer is to help route messages between different local networks. Central to this layer is the concept of exclusive network addresses, where every terminal connected to the ...

All too often we shy away from the depths of IP protocols, leaving the application vendors such as Microsoft; Wowza Media Systems, LLC; RealNetworks, Inc.; Adobe Systems, Inc.; and others with more ...

HTTP/3 brings improved performance and reliability, along with various security and privacy benefits, but there are some noteworthy challenges. HTTP3, the third official version of hypertext transfer ...

The Transport Level Security (TLS) protocol is one of the few rock-steady spots in the rapidly changing computing industry, but that’s about to change as quantum computers threaten traditional ...

A novel attack technique is found capable of launching a looped denial of service (DoS) attack between a pair of network applications, blocking legitimate access to their respective servers ...

The numeric identification of the upper layer protocol that an IP packet should be sent to. The number is stored in the header that is prefixed to an IP packet. Note that the IP protocol number is not ...