RF
Radio Frequency is a frequency in the electromagnetic spectrum associated with radio wave
propagation. When an RF current is supplied to an antenna, an electromagnetic field is created that can
propagate through space. These frequencies in the electromagnetic spectrum range from Ultra-low
frequency (ULF):0-3 Hz to Extremely high frequency (EHF): 30 GHz–300 GHz. The middle ranges are:
Low frequency (LF): 30 kHz–300 kHz; Medium frequency (MF): 300 kHz–3 MHz; High frequency (HF): 3
MHz–30 MHz; Very high frequency (VHF): 30 MHz–300 MHz; and Ultra-high frequency (UHF): 300
MHz–3 GHz.
RIP
This IGP vector-distance routing protocol is part of the TCP/IP suite and maintains tables of all known
destinations and the number of hops required to reach each. Using Routing Information Protocol,
routers periodically exchange entire routing tables. RIP is suitable for use only as an IGP.
RMON
Remote monitoring is a standardized method to make switch and router information available to
remote monitoring applications. It is an SNMP (Simple Network Management Protocol) network
management protocol that allows network information to be gathered remotely. RMON collects
statistics and enables a management station to monitor network devices from a central location. It
provides multivendor interoperability between monitoring devices and management stations. RMON is
described in more detail in IETF RFC 1757 and RFC 2201.
RSN
Robust Security Network is a new standard within IEEE 802.11 to provide security and privacy
mechanisms. The RSN (and related TSN) both specify IEEE 802.1x authentication with Extensible
Authentication Protocol (EAP).
RSTP
Rapid Spanning Tree Protocol, described in IEEE 802.1w, is an enhanced version of STP (Spanning Tree
Protocol) that provides faster convergence. The Extreme Networks implementation of RSTP allows
seamless interoperability with legacy STP.
SMTP
Simple Mail Transfer Protocol uses the TCP (Transmission Control Protocol) to provide a mail service
modeled on the FTP file transfer service. SMTP transfers mail between systems.
SNMP
Simple Network Management Protocol is a standard that uses a common software agent to remotely
monitor and set network configuration and runtime parameters. SNMP operates in a multivendor
environment, and the agent uses MIB (Management Information Base)s, which define what information
is available from any manageable network device. You can also set traps using SNMP, which send
notifications of network events to the system log.
SNTP
Simple Network Time Protocol is used to synchronize the system clocks throughout the network. An
extension of NTP (Network Time Protocol), SNTP can usually operate with a single server and allows for
IPv6 addressing.
SSH
Glossary
ISW Series Managed Industrial Ethernet Switch Command Reference Guide 163
To Next Page
Loading...
Need help?
General