ACL-- access control list. An ACL consists of individual filtering rules grouped together in a single list. It is generally used to provide security filtering, although it may be used to provide a generic packet classification facility.
admission control --The process in which an RSVP reservation is accepted or rejected on the basis of end-to-end available network resources.
application identity (ID) --A string that can be inserted in a policy element in a POLICY_DATA object of an RSVP message to identify the application and associate it with the RSVP reservation request, thus allowing devices along the path to make appropriate decisions based on the application information.
autonomous system --A collection of networks that share the same routing protocol and that are under the same system administration.
bandwidth --The difference between the highest and lowest frequencies available for network signals. The term also is used to describe the rated throughput capacity of a given network medium or protocol.
CCM --Cisco CallManager. The software-based, call-processing component of the Cisco IP telephony solution. The software extends enterprise telephony features and functions to packet telephony network devices such as IP phones, media processing devices, Voice-over-IP (VoIP) gateways, and multimedia applications.
DSCP --differentiated services code point. The six most significant bits of the 1-byte IP type of service (ToS) field. The per-hop behavior represented by a particular DSCP value is configurable. DSCP values range between 0 and 63.
policy --Any defined rule that determines the use of resources within the network. A policy can be based on a user, a device, a subnetwork, a network, or an application.
QoS --quality of service. A measure of performance for a transmission system that reflects its transmission quality and service availability.
RSVP --Resource Reservation Protocol. A protocol for reserving network resources to provide quality of service guarantees to application flows.
RSVP agent --Implements a Resource Reservation Protocol (RSVP) agent on Cisco IOS voice gateways that support Cisco CallManager 5.0.
RTP --Real-Time Transport Protocol. An Internet protocol for transmitting real-time data such as voice and video.
router --A network layer device that uses one or more metrics to determine the optimal path along which network traffic should be forwarded. Routers forward packets from one network to another on the basis of network layer information.
TE --traffic engineering. The techniques and processes used to cause routed traffic to travel through the network on a path other than the one that would have been chosen if standard routing methods had been used.