
Is Ethernet a protocol? - Network Engineering Stack Exchange
Jun 19, 2015 · Ethernet is just the Physical layer and the Data Link layer. By itself Ethernet does nothing; it’s just the “pipe.” Wholehearted agreement that Ethernet is NOT a protocol. Ethernet …
What can cause "FastEthernet is up, line protocol is down" on a …
I wonder what can cause the first line output of the command show interfaces to be: FastEthernet is up, line protocol is down. In other words, Is the cable that is connected to the local interface...
ethernet - Network Byte Order - Network Engineering Stack …
Nov 10, 2015 · Internet Protocol transmission will depend entirely upon the underlying Link Layer and Physical Hardware Layer, using the OSI Network Stack Model terminology. Furthermore, …
Ethernet Protocols (Modbus TCP/IP & Ethernet/IP) can be in the …
Ethernet does not actually work in a ring. STP will create a single loop-free path. Ethernet does not care what upper-layer protocols it carries; it can carry IP, and IP can carry any number of …
ethernet - What is an acceptable bit error ratio? - Network …
Apr 25, 2020 · Most modern Ethernet variants are designed for a bit error ratio (BER) of 10 -12 or better. Early variants only had 10 -10 or better, see IEEE 802.3 for details.
What is the voltage used in ethernet lines (UTP Cables)?
I am asking this because after doing some research I found some conflicting information. First, on Wikipedia page on Ethernet physical layer I found that the voltage on the lines is 2.5V. https://en.
ethernet - What is the loopback Ethertype? - Network Engineering …
Nov 14, 2022 · That EtherType is (was) used for the Ethernet configuration testing protocol (CTP) which is somewhat similar to IP's ping (ICMP echo) facility but for the data link layer. I don't …
protocol theory - Ethernet's frame format, length or EtherType ...
Ethernet defines a 2 byte header for the payload's length in its frame format. This header has an ambiguous meaning: if smaller than or equal to 1500 it represents the payload length. if gre...
Can Ethernet use fiber optic cables? - Network Engineering Stack …
Ethernet runs on a variety of media: coax, UTP, STP, fiber, free-space laser, etc. Many people call UTP cables ethernet cables, but UTP can be used for other protocols, e.g. token ring, T1, …
protocol theory - Reason for half-duplex mode in Ethernet?
Jul 14, 2015 · Half-duplex connections were popular at the time of 10Mbps and 100Mbps Ethernet, and, according to standards, it is allowed also in case of 1Gbps Ethernet. Am I …