What is clocking in networking?
The most important aspect in digital networking is clocking. The clock that quantifies the analog signal must be the same clock that reconstructs the signal at the other end. The only way to assure that the clock is accurate within the entire digital network is to have only one clock.
What causes slips on PRI?
A router with multiple Primary Rate Interfaces (PRIs) can experience slip errors on one of the T1 PRIs. This happens when you have multiple clock sources.
What is clocking in Cisco?
The protocol provides a mechanism for synchronizing the clocks of participating nodes to a high degree of accuracy and precision.
What are slip errors?
Slips are mistakes caused by temporary factors such as a learner being tired, nervous, excited or distracted. They can be compared with errors, which are caused by a learner not knowing something. Some people use the term mistake to describe slips.
How are signals clocked?
We can define a clock signal as a particular type of signal that oscillates between a high and a low state. The signal acts like a metronome, which the digital circuit follows in time to coordinate its sequence of actions.
What is DCE clock rate?
Clock rate is to be used in DCE in serial link to configure the clock speed for the link. … The DCE side of the cable is the side that sets the speed of the link (also known as clocking).
A couple of other key WAN terms relate to the process of clocking. The device that provides clocking, typically the CSU, is considered to be the data communications equipment (DCE). The device receiving clocking, typically the router, is referred to as data terminal equipment (DTE).
What are the three types of human error?
Human error is an unintentional action or decision. Violations are intentional failures – deliberately doing the wrong thing. There are three types of human error: slips and lapses (skill-based errors), and mistakes. These types of human error can happen to even the most experienced and well-trained person.
What is the difference between mistake and slip?
A slip, it says, occurs “when a person plans to do one thing, but then inadvertently does something else.” A mistake, by contrast, “occurs when a person plans to do the wrong thing and is successful.” Hard to deny that the student’s action qualifies as a mistake, by that definition.