--data-link connection identifier. Value that specifies a permanent virtual circuit (PVC) or switched virtual circuit (SVC)
in a Frame Relay network.
-- First-in, first-out queueing. FIFO involves buffering and forwarding of packets in the order of arrival. FIFO embodies
no concept of priority or classes of traffic. There is only one queue, and all packets are treated equally. Packets are sent
out an interface in the order in which they arrive.
--The FRF.12 Implementation Agreement was developed to allow long data frames to be fragmented into smaller pieces and interleaved
with real-time frames. In this way, real-time voice and nonreal-time data frames can be carried together on lower-speed links
without causing excessive delay to the real-time traffic.
--Frame Relay traffic shaping. FRTS uses queues on a Frame Relay network to limit surges that can cause congestion. Data is
buffered and then sent into the network in regulated amounts to ensure that the traffic will fit within the promised traffic
envelope for the particular connection.
--Permanent virtual circuit (PVC) interface priority queueing. An interface-level priority queueing scheme in which prioritization
is based on destination PVC rather than packet contents.
--Measure of performance for a transmission system that reflects its transmission quality and service availability.
--weighted fair queueing. Congestion management algorithm that identifies conversations (in the form of traffic streams),
separates packets that belong to each conversation, and ensures that capacity is shared fairly among these individual conversations.
WFQ is an automatic way of stabilizing network behavior during congestion and results in increased performance and reduced
--Weighted Random Early Detection. Combines IP Precedence and standard Random Early Detection (RED) to allow for preferential
handling of voice traffic under congestion conditions without exacerbating the congestion. WRED uses and interprets IP Precedence
to give priority to voice traffic over data traffic, dropping only data packets.