Link Services Terms

Compressed Real-Time Transport Protocol (CRTP)

Protocol defined in RFC 2508 that compresses the size of IP, UDP, and Real-Time Transport Protocol (RTP) headers and works with reliable and fast point-to-point links for voice over IP (VoIP) traffic.

data-link connection identifier (DLCI)

Identifier for a Frame Relay virtual connection, also called a logical interface.

link fragmentation and interleaving (LFI)

For MLFR with Frame Relay traffic or MLPPP with PPP traffic, a method of reducing excessive delays by fragmenting long packets into smaller packets and interleaving them with real-time frames. For example, short delay-sensitive packets, such as those of packetized voice, can race ahead of larger delay-insensitive packets, such as common data packets.

link services

Capabilities on an interface that use Multilink Frame Relay (MLFR) and Multilink Point-to-Point Protocol (MLPPP), link fragmentation and interleaving (LFI), Compressed Real-Time Transport Protocol (CRTP), and certain class-of-service (CoS) components to improve packet transmission, especially for time-sensitive voice packets.

Multilink Frame Relay (MLFR)

Protocol that allows multiple Frame Relay links to be aggregated by inverse multiplexing.

Multilink Point-to-Point Protocol (MLPPP)

Protocol that allows you to bundle multiple Point-to-Point Protocol (PPP) links into a single logical unit. MLPPP improves bandwidth efficiency and fault tolerance and reduces latency.

Point-to-Point Protocol (PPP)

Link-layer protocol defined in RFC 1661 that provides multiprotocol encapsulation. PPP is used for link-layer and network-layer configuration.

shaping rate

In class of service (CoS) classification, a method of controlling the maximum rate of traffic transmitted on an interface.