What is line protocol down mean?
The line protocol being down indicates a clocking or framing problem. Probable reasons for this are encapsulation and clock rate mismatches. Ethernet0 is administratively down, line protocol is down: This output indicates that a local interface has been manually shut down using the shutdown command.
What is status up protocol down?
Basically, up/down means the port is available for a cable/connection, but doesn’t have one. Check the cable, or other computer.
What is the latest version of Cisco IOS?
15.9
Cisco IOS
| Developer | Cisco Systems |
|---|---|
| Latest release | 15.9(3)M / August 15, 2019 |
| Available in | English |
| Platforms | Cisco routers and Cisco switches |
| Default user interface | Command-line interface |
What information can be gained with the show version command?
Show version: Displays information about the router’s internal components, including the IOS version, memory, configuration register information, etc. The most common use of the show version command is to determine which version of the Cisco IOS a device is running.
What is difference between status and protocol?
The first status code (known as line status) indicates that the Layer 1 is working (FastEthernet0/1 is up). The second status code (known as protocol status) indicates that Layer 2 is also working (line protocol is up) and is always Down if the line status is Down.
What does it mean if the interface status is administratively down down?
Administratively down means that the interface has a shutdown command.
What does a link status of Up Up indicate?
Answer: The “Link Up” or “Link Down” SNMP Trap monitors the port operating status of a switch (SNMP Client). If an Ethernet cable is plugged into a port, or a cable is removed, then the SNMP Client will send a corresponding “Link Up” or “Link Down” notification to a network management station (SNMP Manager).
Is Cisco IOS free?
“As a special customer service, and to improve the overall security of the Internet, Cisco may offer customers free software updates to address high-severity security problems. The decision to provide free software updates is made on a case-by-case basis.
What language is Cisco IOS written in?
Host (WSH). Command Language (TCL) to the Cisco IOS. Let’s take a closer look. developed by John Ousterhout.
What does show CDP neighbors do?
The show cdp neighbors detail command reveals the IP address of a neighboring device. The show cdp neighbors detail command will help determine if one of the CDP neighbors has an IP configuration error. To disable CDP globally, use the global configuration command no cdp run.
What does the show inventory command do?
To retrieve and display information about all the Cisco products that are installed in the router, use the show inventory command in System Admin EXEC or XR EXEC mode. chassis. All inventory information for the entire chassis is displayed.
What does up up mean on a switch?
Cisco Switches Interface Status Codes
| # | Line Status | Typical Cause |
|---|---|---|
| 3. | Up | An interface up/down state is not expected on LAN switch interfaces. |
| 4. | Down | Port security has disabled the interface. |
| 5. | Up | The interface is working. |