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Layer 2, Data Link.
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∙ 13y ago
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What is line protocol is administratively down on a cisco router?
The message is something like "Serial 0/0 is up, line protocol is down". The first part refers to the physical connection (layer 1 of the OSI model), which works in this case; the second part refers to layer 2 of the OSI model (the serial networking protocol, like HDLC or PPP), which in this example doesn't work for some reason.
What is Logical Link Control Protocols?
It is forms part of the Point-to-Point Protocol. In setting up PPP communications, both the sending and receiving devices send out LCP packets to determine the standards of the ensuing data transmission. LCP is logically a Transport Layer protocol according to the OSI model,
What is the purpose of the Logic Link Control protocol?
It is forms part of the Point-to-Point Protocol. In setting up PPP communications, both the sending and receiving devices send out LCP packets to determine the standards of the ensuing data transmission. LCP is logically a Transport Layer protocol according to the OSI model,
Is DSL a WAN data link encapsulation?
Frame relay and PPP is used with WAN encapsulation. Frame Relay most closely compares to the OSI data link layer (Layer 2). If you remember that the word "frame" describes the data link layer protocol data unit (PDU), it will be easy to remember that Frame Relay relates to OSI Layer 2. Like other data-link protocols, Frame Relay can be used to deliver packets (Layer 3 PDUs) between routers.
What does PPP use to encapsulate multiple network-layer protocols?
Network control protocol
Which functions are provided by lcp and ncp as part of the ppp layered architecture?
LCP sets up the PPP connection and its parameters. NCP handles higher layer protocol configurations.
What protocol does PPP use to identify the Network layer protocol?
Network Control Protocol is uses to identify the Network layer protocol used in the packet
4 basic function of datalink layer?
error control and recovery flow control ppp(point to point protocol transfering from physical layer to network entities
Line protocol in down then what you do?
there may be the issue with the layer 2 protocol like hdlc or ppp is not configured or wrongly configured if the interface is serial interface.
Which combination of authentication and Layer 2 protocol should be used to establish a link between a Cisco and a non-Cisco router without sending authentication information in plain text?
pp chap
Discuss the three types of Internet account connectivity?
Internet (PPP) Accounts A PPP (Point-to-Point Protocol) account is an Internet account that uses the PPP communications protocol. PPP is the most popular type of Internet account because the most popular software--Internet Explorer, Netscape Navigator, Outlook Express, Eudora, and other programs--is designed to work with PPP accounts. Occasionally, you may run into a SLIP (Serial Line Internet Protocol) or CSLIP account (Compressed SLIP), which are old, less-reliable protocols than PPP, but which work the same way. This book refers to PPP, CSLIP, and SLIP accounts as dial-up Internet accounts. An Internet service provider (ISP) is an organization that provides Internet accounts, usually PPP accounts, but occasionally UNIX shell accounts. All ISPs provide dial-in accounts using regular phone lines, and many also provide ISDN and DSL connections
What is the second smallest country in Central America?
the answer is that destiney is awesome. :ppp the answer is that destiney is awesome. :ppp
