Cisco calls its protocol “Line Protocol”, which means “the connection”. In essence, up/down means the port is available for a cable or connection, but not one. Make sure the cable is attached to your computer.

What Does Up Up Mean In Networking?

Line Status

Protocol Status

Possible Root Cause

Up

Down

And interface is not expected on physical interfaces.

Down

Down error disabled

Port security has disabled the interface.

Up

Up

The interface is working.

What Does A Link Status Of Up Up Indicate?

A session can be started if the link status shows UP, which signifies that the connection has been completed.

What Does Up Down Interface Mean?

An Ethernet may be up/down due to a lack of connection, or due to a mismatch in the speed of the connection.

What Does It Mean For An Interface To Be Up Or Down?

Cisco calls its protocol “Line Protocol”, which means “the connection”. In essence, up/down means the port is available for a cable or connection, but not one. Make sure the cable is attached to your computer. Superuser is available at https://superuser.com. Com/questions/338112/cisco-switch-link-status-up-protocol-down/338120#338120.

What Does Lower_up Mean?

LOWER_UP refers to the state of the Ethernet link (or another layer of the protocol). Driver signals L1 up are what basically means the cable is fitted and it can see another device on the other end. When it has been enabled, the UP indicates that it has been enabled.

What Does Down Down Mean Cisco?

In other words, if the line shows as down, it means there is a problem with physical connectivity (and it cannot transmit or receive). In the event that the line appears down, we believe we are connected physically, but not able to transmit or receive.

What Is A Link Status?

When the receiver detects a number of consecutive “link pulses” (also known as “link test pulses” or “normal link pulse”), the link status is raised in 10BaseT Ethernet. When a timed interval is measured, no link pulse is received, the link status is lowered.

What Does An Up Down Interface Status Mean?

In essence, up/down means the port is available for a cable or connection, but not one. Make sure the cable is attached to your computer.

What Is The Meaning Of The Up Up Part Of The Output?

On the same line as the interface name, you can see the Layer 1/Layer 2 interface state indicated by the “up/up” output. In the same way as the Status and Protocol columns in IPv4, the output displays two IPv6 addresses per interface.

What Does Interface Status Mean?

In the first line of the output, you can see how the interface is working. A line status indicates that the Layer 1 is working (FastEthernet0/1 is on). In our case, the word at the end indicates that the interface is working (connected).

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