What are the three classes of LCP frames?
Types of LCP Frames
- LCP configuration frames.
- LCP termination frames.
- LCP maintenance frames.
What is the purpose of LCP packets?
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.
What is number of the RFC that defines the Point-to-Point Protocol?
It is defined in RFC 1990. It can be used, for example, to connect a home computer to an Internet Service Provider using two traditional 56k modems, or to connect a company through two leased lines.
What is a PPP connection?
Point-to-Point Protocol (PPP) is a TCP/IP protocol that is used to connect one computer system to another. Computers use PPP to communicate over the telephone network or the Internet. A PPP connection exists when two systems physically connect through a telephone line.
How many types of LCP are there?
Common LCP options include the PPP MRU, the authentication protocol, compression of PPP header fields, callback, and multilink options. LCP uses the PPP Protocol ID of 0xC0-21. The packet structure of LCP is illustrated in Figure 7.11.
How many types of LCP frames are possible?
Then, both devices send and receive data. Link termination frames are used when a link is being closed down, with messages such as Terminate-Request and Terminate-Ack. There are 11 Link Control Protocol frame types defined in the main Point-to-Point Protocol document.
Does PPP use LCP?
PPP on the router uses the ACCM configuration data as supplied by the LAC via proxy LCP. The router does not directly support asynchronous PPP connections and will not negotiate an ACCM option unless directed to do so by a third-party LAC.
Which two protocols are used in PPP?
PPP is designed to allow the simultaneous use of multiple network layer protocols, including IPv4 and v6, IPX, and AppleTalk. PPP operates using different network layer protocols (e.g., IPX and AppleTalk), whereas SLIP uses only TCP/IP-based IP.
Can Layer 3 protocols pass over Layer 2 PPP?
PPP is a varsatile protocol and supports both synchronous and asynchronous links. The protocol Type filed in the header allows multiple Layer 3 protocols to be carried over the same PPP link.
Can LCP detect loops?
Routing protocol convergence can be sped up by LCP’s recognition of the loop. LCP notices looped links quickly using a feature called magic numbers.
