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Cisco uBR10012 Universal Broadband Router Software Configuration Guide
OL-1520-06
Preface Terms and Acronyms
•DSR—data set ready
•DSU—data service unit
•DTE—data terminal equipment
•DTR—data terminal ready
•EMC—electromagnetic compliance
•EMI—electromagnetic interference
•ESD—electrostatic discharge
•FRU—field-replaceable unit (router components that do not require replacement by a Cisco
certified service provider)
•FTP—foil twisted-pair
•HCCP—Hot Standby Connection-to-Connection Protocol
•HDLC—High-Level Data Link Control
•HFC—hybrid fiber coaxial
•HWIDB—hardware interface data block
•IPSec—IP Security Protocol
•Kbps—Kilo-bits Per Second
•LC—line card
•LCN—logical channel number
•LCP—line card processor
•LLC—Logical Link Control
•Logical Interface—A group of one or more upstream and one or more downstream cable ports
•MAC—Media Access Control
•MAP—upstream bandwidth allocation map
•MB—megabyte
•Mbps—Mega-bits per second
•MM—multimode
•Modem—modulator/demodulator
•MPLS—Multiprotocol label switching
•nrt-VBR—non-real-time variable bit rate
•NTSC—National Television Standards Committee
•NVRAM—nonvolatile random-access memory
•OAM AIS—Operation, Administration, and Maintenance alarm indication signal
•OIR—online insertion and removal
•PBR—policy-based routing
•PCI—peripheral component interconnect bus
•PCMCIA—Personal Computer Memory Card International Association
•PHS—payload header suppression
•PHY—Physical Interface Chip
•PPP—Point-to-Point Protocol
•PRE—Performance Routing Engine
•QAM—Quadrature Amplitude Modulation
•QoS—quality of service
•QPSK—Quadrature Phase Shift Keying
•rcp—remote copy protocol
•RF—radio frequency
•RFI—radio frequency interference
•RIP—Routing Information Protocol
•RISC—Reduced Instruction Set Computer
•ROM—read only memory