A watchdog agent is a daemon process that is used to monitor, stop, start, and restart BAC component processes such as the RDU, Tomcat, and the SNMP agent.
A syslog or SNMP message notifying an operator or administrator of a network problem.
Application programming interface. Specification of function-call conventions that defines an interface to a service.
An integrated solution for data-over-cable service providers to configure and manage broadband modems, and enable and administer subscriber self-registration and activation. BAC is a scalable product capable of supporting millions of devices.
The difference between the highest and lowest frequencies available for network signals. The term is also used to describe the rated throughput capacity of a given network medium or protocol.
A transmission system that multiplexes multiple independent signals onto one cable. In telecommunications terminology, any channel having a bandwidth greater than a voice-grade channel (4 kHz); in LAN terminology, a coaxial cable on which analog signaling is used.
Broadband Access Center for Cable
cable modem termination system
A CableLabs initiative to develop a standardized infrastructure to let cable operators extend high-quality, value-added services to the home local-area network.
A form of replication in which information learned during a previous transaction is used to process later transactions.
Cable modem termination system. A CMTS is a component that exchanges digital signals with cable modems on a cable network. The CMTS is usually located in the cable provider's local office.
CMTS shared secret
See shared secret.
A file containing configuration parameters for the device to be provisioned.
The process of generating configurations at the RDU for devices and distributing them to the DPE. The configuration instructions are cached by the DPE and informed about any action needed to be performed on the CPE.
Customer premises equipment. Terminating equipment, such as telephones, computers, and modems, supplied and installed at a customer location.
Device Provisioning Engine. The DPE caches device information. These distributed servers automatically synchronize with the RDU to obtain the latest configurations and provide BAC scalability.
Data Over Cable Service Interface Specification. DOCSIS defines functionality in cable modems involved in high-speed data distribution over cable television system networks.
Fully qualified domain name. FQDN is the full name of a system, rather than just its hostname. For example, cisco is a hostname and www.cisco.com is an FQDN.
An IP address is a 32-bit number that identifies each sender or receiver of information that is sent in packets across the Internet.
Key Distribution Center. The KDC implements limited Kerberos functionality. Used in the provisioning of PacketCable MTAs.
Standardized data-link layer address that is required for every port or device that connects to a LAN. Other devices in the network use these addresses to locate specific ports in the network and to create and update routing tables and data structures. MAC addresses are 6 bytes long and are controlled by IEEE. Also known as hardware address, MAC-layer address, or physical address. Compare with
Media Terminal Adapter
Multiple system operator. A company that operates more than one cable TV or broadband system.
Equipment at the customer end of a broadband (packetcable) network.
multiple service operator
Network address translation. Mechanism for reducing the need for globally unique IP addresses. NAT allows an organization with addresses that are not globally unique to connect to the Internet by translating those addresses into globally routable address space. Also known as Network Address Translation.
Network layer address referring to a logical, rather than a physical, network device. Also called a protocol address. Compare with
Person responsible for operation, maintenance, and management of a network.
See also network operator.
Person who routinely monitors and controls a network, performing such tasks as reviewing and responding to alarms, monitoring throughput, configuring new circuits, and resolving problems.
See also network administrator.
Network Time Protocol
Cisco Network Registrar. A software product that provides IP addresses, configuration parameters, and DNS names to DOCSIS cable modems and PCs, based on network and service policies.
Network Time Protocol. NTP is a protocol designed to synchronize server clocks over a network.
A series of BAC functions that programs can use to make the operating system perform various functions.
Groupings of devices with a defined set of associated DPE and DHCP servers, based on either network topology or geography.
Regional Distribution Unit. The RDU is the primary server in the BAC provisioning system. It manages generation of device configurations, processes all API requests, and manages the BAC system.
The logical network served by a single Kerberos database and a set of Key Distribution Centers.
By convention, realm names are generally all uppercase letters to differentiate the realm from the Internet domain.
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.
Selection tags associated with Network Registrar scopes. These tags define the clients and client-classes associated with a scope.
A character string used to provide secure communication between two servers or devices.
Trivial File Transfer Protocol. Simplified version of File Transfer Protocol (FTP) that allows files to be transferred from one computer to another over a network.