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. The frequency range necessary to convey a signal measured in units of hertz (Hz). For example, voice signals typically require approximately 7 kHz of bandwidth and data traffic typically requires approximately 50 kHz of bandwidth.
bandwidth
reservation
--The process of assigning bandwidth to users and applications served by a network. This process involves assigning priority to different flows of traffic based on how critical and delay-sensitive they are. This makes the best use of available bandwidth, and if the network becomes congested, lower-priority traffic can be dropped. Sometimes called bandwidth allocation
global
pool
--The total bandwidth allocated to an Multiprotocol Label Switching (MPLS) traffic engineering link.
label
switched
path
(LSP)
tunnel
--A configured connection between two routers, using label switching to carry the packets.
LSR
--label switch router. A Multiprotocol Label Switching (MPLS) node that can forward native Layer 3 packets. The LSR forwards a packet based on the value of a label attached to the packet.
MPLS
TE
--Multiprotocol Label Switching (MPLS) traffic engineering (formerly known as “RRR” or Resource Reservation Routing). The use of label switching to improve traffic performance along with an efficient use of network resources.
subpool
--The more restrictive bandwidth in an Multiprotocol Label Switching (MPLS) traffic engineering link. The subpool is a portion of the link's overall global pool bandwidth.
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. The application of scientific principles and technology to measure, model, and control internet traffic in order to simultaneously optimize traffic performance and network resource utilization.
traffic
engineering
tunnel
--A label-switched tunnel used for traffic engineering. Such a tunnel is set up through means other than normal Layer 3 routing; it is used to direct traffic over a path different from the one that Layer 3 routing could cause the tunnel to take.
tunnel
--A secure communication path between two peers, such as two routers.