Cisco ESR10008 Hardware Installation Guide - Page 161
Quality of Service, Random Access, Memory, Read only memory, Redundancy, Remote monitoring
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Glossary Q QoS Quality of service. A measure of performance for a transmission system that reflects its transmission quality and service availability. QPPB QoS Policy Propagation by BGP. A feature that classifies packets by IP precedence based on BGP 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. Quality of Service See QoS. R RAM Random-access memory. Volatile memory that can be read and written by a microprocessor. Random Access Memory See RAM. Read only memory See ROM. Redundancy In internetworking, the duplication of devices, services, or connections so that, in the event of a failure, the redundant devices, services, or connections can perform the work of those that failed. Remote monitoring See RMON. Request for comments See RFC. RFC Request for comments. A document series used as the primary means for communicating information 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. RMON Remote Monitoring. MIB agent specification described in RFC 1271 that defines functions for the remote monitoring of networked devices. The RMON specification provides numerous monitoring, problem detection, and reporting capabilities. ROM Read only memory. Nonvolatile memory that can be read, but not written, by the microprocessor. S SAR Short reach OL-0659-13 Segmentation and reassembly. One of the two sublayers of the AAL common part convergence sublayer, 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. Cisco 10008 Router Hardware Installation Guide GL-11
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