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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 transport layer.
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 (wikipedia).
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 (Wikipedia).
SSM
SSM In SyncE this is an abbreviation for Synchronization Status Message and is containing a QL indication.
STP
Spanning Tree Protocol is an OSI layer-2 protocol which ensures a loop free topology for any bridged LAN.
The original STP protocol is now obsolete by RSTP.
SVL
Shared VLAN Learning allows for frames initially classified to a particular VLAN (based on Port VLAN ID or
VLAN tag information) be bridged on a shared VLAN. In SVL two or more VLANs are grouped to share
common source address information in the MAC table. The common entry in the MAC table is identified by a
Filter ID (FID). SVL is useful for configuration of more complex, asymmetrical cross-VLAN traffic patterns,
like E-TREE (Rooted-Multi-point) and Multi-netted Server.
The alternative VLAN learning mode is IVL. The default VLAN learning mode is IVL and not all switches
support SVL.
Switch ID
Switch IDs (1-1) 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.
SyncE
SyncE Is an abbreviation for Synchronous Ethernet. This functionality is used to make a network 'clock
frequency' synchronized. Not to be confused with real time clock synchronized (IEEE 1588).
RocketLinx MP1204-XT User Guide: 2000644 Rev. A
Glossary - 407
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