Cisco 10008 Hardware Installation Manual page 161

Q
Quality of service. A measure of performance for a transmission system that reflects its transmission
QoS
quality and service availability.
QoS Policy Propagation by BGP. A feature that classifies packets by IP precedence based on BGP
QPPB
community lists, BGP autonomous system paths, and access lists. After a packet is classified, other
quality of service features such as committed access rate (CAR) and Weighted Random Early Detection
(WRED) can specify and enforce policies to fit a business model.
See QoS.
Quality of Service
R
Random-access memory. Volatile memory that can be read and written by a microprocessor.
RAM
See RAM.
Random Access
Memory
See ROM.
Read only memory
In internetworking, the duplication of devices, services, or connections so that, in the event of a failure,
Redundancy
the redundant devices, services, or connections can perform the work of those that failed.
See RMON.
Remote monitoring
See RFC.
Request for
comments
Request for comments. A document series used as the primary means for communicating information
RFC
about the Internet. Some RFCs are designated by the IAB as Internet standards. Most RFCs document
protocol specifications such as Telnet and FTP, but some are humorous or historical. RFCs are
available online from numerous sources.
Remote Monitoring. MIB agent specification described in RFC 1271 that defines functions for the
RMON
remote monitoring of networked devices. The RMON specification provides numerous monitoring,
problem detection, and reporting capabilities.
Read only memory. Nonvolatile memory that can be read, but not written, by the microprocessor.
ROM
S
Segmentation and reassembly. One of the two sublayers of the AAL common part convergence sublayer,
SAR
responsible for dividing (at the source) and reassembling (at the destination) the protocol data units (PDUs)
passed from the convergence sublayer. The SAR sublayer takes the PDUs processed by the convergence
sublayer and, after dividing them into 48-byte pieces of payload data, passes them to the ATM layer for
further processing. See also AAL.
See SR.
Short reach
OL-0659-13
Cisco 10008 Router Hardware Installation Guide
Glossary
GL-11