Appendix A. Glossary System Manual
Page 2-124 8/09 76.7300FP11/2, Rev A
PSU Power Supply Unit
PVID Port VLAN ID
PW Pseudo-Wire See also MPLS.
QoS Quality Of Service
Q-in-Q Port Same as Proprietary Provider Network Port (PPNP)
RFI Remote Failure Indication
RMON Remote Network Monitoring
RoHS Restriction of Hazardous Substances
RSTP Rapid STP Mode
RU Rack Unit
Runt A frame of less than 64 bytes, including the preamble
and a valid FCS.
SA Source Address
SFP Small Form-Factor Pluggable
Short Event A sequence of bytes of insufficient length to form a
valid Ethernet frame (less than 18 bytes).
SLA Service Level Agreement
SMAC address Source MAC Address
SNMP Simple Network Management Protocol
SNTP Simple Network Time Protocol
SONET Synchronous Optical Network
srTCM Single Rate Three Color Marker
SSID Service Set Identifier
SST Single Spanning Tree
STP Spanning Tree Protocol - a link management protocol
that offers path redundancy to help prevent
unacceptable loops in the network when several
active paths between stations produce loops in the
network. STP forces some redundant data paths to
standby mode.
See also RSTP and MSTP.
switch context Same as virtual switch
S-VLAN Service Provider VLAN See also C-VLAN.
TC Topology Change
TGLAN Ten Gigabit LAN Ethernet Facility
TLV Type, Length, Value
Table A.1 Glossary (Continued)
Acronym/Term Definition Additional Information
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