Link Control Protocol - definizione. Che cos'è Link Control Protocol
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Cosa (chi) è Link Control Protocol - definizione

COMPUTER NETWORK PROTOCOL
Logical control protocol; Link control protocol

Link Control Protocol         
<protocol> A protocol used to automatically agree upon encapsulation format options, handle varying packet size limits, authenticate the identity of its peer on the link, determine when a link is functioning properly and when it is defunct, detect a looped-back link and other common misconfiguration errors, and terminate the link. [RFC 1570]. (1997-05-10)
Link Control Protocol         
In computer networking, the Link Control Protocol (LCP) forms part of the Point-to-Point Protocol (PPP), within the family of Internet protocols. In setting up PPP communications, both the sending and receiving devices send out LCP packets to determine the standards of the ensuing data transmission.
RTCP         
Real Time Control Protocol (Reference: RTP)

Wikipedia

Link Control Protocol

In computer networking, the Link Control Protocol (LCP) forms part of the Point-to-Point Protocol (PPP), within the family of Internet protocols. In setting up PPP communications, both the sending and receiving devices send out LCP packets to determine the standards of the ensuing data transmission.

The protocol:

  • checks the identity of the linked device and either accepts or rejects the device
  • determines the acceptable packet size for transmission
  • searches for errors in configuration
  • can terminate the link if requirements exceed the parameters

Devices cannot use PPP to transmit data over a network until the LCP packet determines the acceptability of the link, but LCP packets are embedded into PPP packets and therefore a basic PPP connection has to be established before LCP can reconfigure it.

LCP over PPP packets have control code 0xC021 and their info field contains the LCP packet, which has four fields (Code, ID, Length and Data).

  • Code: Operation requested: configure link, terminate link, and acknowledge and deny codes
  • Data: Parameters for the operation