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LGB5128A User Manual
244
SMTP
SMTP is an acronym for Simple Mail Transfer Protocol. It is a text-based protocol that
uses the Transmission Control Protocol (TCP) and provides a mail service modeled on
the FTP file transfer service. SMTP transfers mail messages between systems and
notifications regarding incoming mail.
SNAP
The SubNetwork Access Protocol (SNAP) is a mechanism for multiplexing, on networks
using IEEE 802.2 LLC, more protocols than can be distinguished by the 8-bit 802.2
Service Access Point (SAP) fields. SNAP supports identifying protocols by Ethernet type
field values; it also supports vendor-private protocol identifier.
SNMP
SNMP is an acronym for Simple Network Management Protocol. It is part of the
Transmission Control Protocol/Internet Protocol (TCP/IP) protocol for network
management. SNMP allows diverse network objects to participate in a network
management architecture. It enables network management systems to learn network
problems by receiving traps or change notices from network devices implementing SNMP.
SNTP
SNTP is an acronym for Simple Network Time Protocol, a network protocol for
synchronizing the clocks of computer systems. SNTP uses UDP (datagrams) as the
transport layer.
SPROUT
Stack Protocol using ROUting Technology. An advanced protocol for almost
instantaneous discovery of topology changes within a stack as well as election of a
master switch. SPROUT also calculates parameters for setting up each switch to perform
shortest path forwarding within the stack.
SSID
Service Set Identifier is a name used to identify the particular 802.11 wireless LANs to
which a user wants to attach. A client device will receive broadcast messages from all
access points within range advertising their SSIDs, and can choose one to connect to
based on pre-configuration, or by displaying a list of SSIDs in range and asking the user
to select one.
SSH
SSH is an acronym for Secure SHell. It is a network protocol that allows data to be
exchanged using a secure channel between two networked devices. The encryption used
by SSH provides confidentiality and integrity of data over an insecure network. The goal
of SSH was to replace the earlier rlogin, TELNET, and rsh protocols, which did not
provide strong authentication or guarantee confidentiality.
SSM
SSM is SyncE. This is an abbreviation for Synchronization Status Message that contains
a QL indication.
STP
Spanning Tree Protocol is an OSI layer-2 protocol that ensures a loop free topology for
any bridged LAN. The original STP protocol is now obsolete by RSTP.
Switch ID
Switch IDs (1–16) are used to uniquely identify the switches within a stack. The Switch ID
of each switch is shown on the display on the front of the switch and is used widely in the
Web pages as well as in the CLI commands.