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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
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