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Category: Letter P

link to What is the Payload Type Indicator (PTI) in computer networking?

What is the Payload Type Indicator (PTI) in computer networking?

Payload Type Indicator (PTI) is a field in a data packet that indicates the type of data being transmitted.

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link to Power Over Ethernet (PoE)

Power Over Ethernet (PoE)

Power over Ethernet (PoE) is an optional standard that provides direct current electrical power over Ethernet twisted-pair cabling. This makes it possible for an Ethernet switch port to provide both...

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link to PoE Vendor Extensions to the Standard

PoE Vendor Extensions to the Standard

After 802.3at made it possible to provide roughly 30 watts over two pairs of wires, it was a relatively straightforward process to extend the standard to provide power over four pairs simultaneously.

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link to PoE Port Management

PoE Port Management

To manage these power loads, vendors of switches typically program the switches to provision power one port at a time, this is PoE Port Management.

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link to PoE and Cable Pairs

PoE and Cable Pairs

The PoE standard specifies the way that power is injected into the Ethernet cable pairs, and which pairs should be used.

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link to How Power Over Ethernet works – PoE Operations

How Power Over Ethernet works – PoE Operations

Understanding how PoE works. The idle state and three operational states: detection, classification, and operation.

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