0
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.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What is the most likely cause for the line protocol being down?
The most likely cause for any type of line protocol being down is that a network administrator used the shutdown command on these lines to prohibit access to telnet, ssh and connection to the line con 0.
Which command output would you most likely see if you had a problem at the physical layer?
Ethernet 0/0 is down, line protocol is down
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 Serial line interface protocol?
It is a very simple protocol used for transmission of IP datagrams across a serial line.
If you encounter a line protocol down message on a router interface what is is an indication of?
There is a problem with the interface at the data-link layer that prevents it from functioning properly
Full form of SLIP in computers?
Serial link internet protocol..............
Which command output would you most likely see if you had a problem at the data link layer?
Serial 0/1 is up, line protocol is down
What is line protocol?
The rules for exchanging data between computers
How data travel through telephone line connection?
DATA Transmission is done through SLIP (Serial Line Internet Protocol) & PPP (Point to Point Protocol) Protocols to enable computers to interact with Internet over Telephone Line.
What are the Network operating system covered?
IP, Enhanced Interior Gateway Routing Protocol (EIGRP), Serial Line Interface Protocol Frame Relay, Routing Information Protocol Version 2 (RIPv2),VLANs, Ethernet, access control lists (ACLs).
What is the difference between serial line internet protocol and compressed serial line internet protocol?
For CSLISP, the TCP header is reduced from about 20 characters to about 7. The actual data is not compressed, so you don't save very much in transmission costs per packet.
What command line utilities allows you to view internet protocol configuration on a unix or linux host?
Ifconfig
