what is the difference between a CSU/DSU and a modem?
I'm so confused, both do the same function, converting the analog to digital, but what's the difference?
OSI model peer communication - Network Engineering Stack Exchange
Dec 4, 2017 · In OSI terminology, the packet data (also known as the Payload) is called a Protocol Data Unit (PDU). The packet so-formed, called a Service Data Unit (SDU) is passed via a service access …
Does the physical layer is OSI ISO model add any header?
Oct 26, 2017 · 1 According to OSI model, does the physical layer add any header to the date it receives from layer 2? Or is it simply sending the data frames it gets from layer2 as shown in the figure …
What is a headend device? - Network Engineering Stack Exchange
Dec 11, 2016 · I see the term headend thrown around a lot at work? What sort of device in what role gets considered a headend?
What is the actual size of an Ethernet MTU
Apr 28, 2015 · The term maximum transmission unit (MTU) defines the maximum layer 3 packet that can be sent over a medium. Because the layer 3 packet rests inside the data portion of an Ethernet …
TCP/IP and data cut - Network Engineering Stack Exchange
Jan 31, 2024 · Ethernet) ? From layer 4 to layer 1, we have : Data (layer 4) such as a mail, becoming multiples TCP segments or UDP datagrams (layer 3), and then packets (layer 2) and finally frames …
Is the MTU of Ethernet still 1500 Bytes?
Jul 16, 2018 · Standard maximum payload size for Ethernet is still 1500 bytes. While the maximum frame size has grown slightly, from 1518 to 1522 byte with 802.1Q and further with 802.1AD, the …
What is the difference between data rate and latency?
Data rate is how much data can be sent per unit if time, it is not measured in data rate (per unit of time, normally a standard unit). Data rate can affect latency in the real world, whereas latency affects …
What layer of the OSI model deals with ports?
Mar 2, 2015 · Port addresses are part of the TCP header and are encapsulated to the PDU (Protocol Data Unit) in Layer 4.That proves your point. but explicitly where does the raw data (later to be …
Bandwidth vs Throughput vs Data(bit) rate - Network Engineering …
Feb 24, 2017 · Bandwidth: The unit of it is Hz, so it is mathematically is: High_Used_Frequency - Low_Used_Frequency. So, when we measure bandwidth in bps, i.e we do mistake. Besides, some …