Achieving the required QoS becomes the secret to a successful end-to-end business
solution. Therefore, QoS is the set of techniques to manage network resources.
R
RARP
RARP is an acronym for Reverse Address Resolution Protocol. It is a protocol that is used
to obtain an IP address for a given hardware address, such as an Ethernet address.
RARP is the complement of ARP.
RADIUS
RADIUS is an acronym for Remote Authentication Dial In User Service. It is a networking
protocol that provides centralized access, authorization and accounting management for
people or computers to connect and use a network service.
RDI
RDI is an acronym for Remote Defect Indication. It is an OAM functionality that is used by
a MEP to indicate defect detected to the remote peer MEP
RSTP
In 1998, the IEEE with document 802.1w introduced an evolution of STP: the Rapid
Spanning Tree Protocol, which provides for faster spanning tree convergence after a
topology change. Standard IEEE 802.1D-2004 now incorporates RSTP and obsoletes
STP, while at the same time being backwards-compatible with STP.
S
SHA
SHA is an acronym for Secure Hash Algorithm. It designed by the National Security
Agency (NSA) and published by the NIST as a U.S. Federal Information Processing
Standard. Hash algorithms compute a fixed-length digital representation (known as a
message digest) of an input data sequence (the message) of any length.
Shaper
A shaper can limit the bandwidth of transmitted frames. It is located after the ingress
queues.
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 allow 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
