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Answer» What is Link Control Protocol mean? 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 LCP protocol: checks the identity of the linked device and either accepts or rejects the devicedetermines the acceptable packet size for transmissionsearches for errors in configurationcan terminate the link if requirements exceed the parametersDevices 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.The 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. reference
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