TP-Link TL-ER6020 manual Glossary, Description

		Glossary		Description
				Standardized data link layer address that is required for every
				port or device that connects to a LAN. Other devices in the
		MAC address（Media		network use these addresses to locate specific ports in the
		Access Control address）		network and to create and update routing tables and data
M				structures. MAC addresses are 6 bytes long and are controlled
				by the IEEE.
		MTU（Maximum		The size in bytes of the largest packet that can be transmitted.
		Transmission Unit）
				Mechanism for reducing the need for globally unique IP
		NAT（Network Address		addresses. NAT allows an organization with addresses that are
		Translator）		not globally unique to connect to the Internet by translating
N				those addresses into globally routable address space.
		NTP Server		NTP Server is used for synchronising the time across computer
				networks.
		POP3（Post Office Protocol		POP3 is intended to permit a workstation to dynamically access
		3）		a maildrop on a server host in a useful fashion.
P
				PPPoE is a network protocol for encapsulating Point-to-Point
		PPPoE（Point-to-Point
		Protocol over Ethernet）		Protocol (PPP) frames inside Ethernet frames.
		SMTP（Simple Mail		SMTP is an Internet standard for electronic mail (e-mail)
		Transfer Protocol）		transmission
		SSH（Secure Shell		SSH is a network protocol that allows data to be exchanged
		Protocol）		using a secure channel between two networked devices.
S
				SA is the establishment of shared security attributes between
		SA （Security Association）
			two network entities to support secure communication.
		TCP（Transfer Control		Connection-oriented transport layer protocol that provides
		Protocol）		reliable full-duplex data transmission.
		TCP/IP（Transmission		Common name for the suite of protocols to support the
T	Control Protocol/ Internet			construction of worldwide Internet works. TCP and IP are the
		Protocol）		two best-known protocols in the suite.
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