Cisco port status command

The documentation set for this product strives to use bias-free language.

It can be very useful at troubleshooting connectivity issues and physical port issues, check the status of physical ports, watch how much traffic is passing through the interface, which IP address is assigned to the interface for Layer3 interfaces etc. This command works on both Cisco Switches and Cisco Routers and has the same functionality on both types of devices. On a Layer 2 switch we can check the status and various other counters and metrics for each physical ethernet interface or for every interface on the device. The above gives me a quick status update of each available interface on the switch, on which VLAN it belongs, speed settings etc. Now if you want to dive deeper in the counters for each physical interface, we can be more specific as shown below:. The most important data you need to take into consideration are the following:. Hardware is Lance, address is b.

Cisco port status command

Log in to ask questions, share your expertise, or stay connected to content you value. Learn how to become a member. Cisco's command displayed some useful information. Kiran Meda. Just tested this Junos Automation slax op script and it works well just missing the description field you may be used to in Cisco. A customer asked for some help on this the other day. They're very used to seeing the interface description a la Cisco and wondered if it was possible to adjust the slax script mentioned above to fit. When I run it all I get are the headers, no data. The Script use the Command "show ethernet-switching interfaces", who doesnt exists on the EX There only exist a Command "show ethernet-switching interface" without "s" , and the output is tottaly different. This also not exists on EX I just checked on an EX and yes the command structure for ELS is indeed "interface" versus "interfaces". I think I have edit the script to now work with ELS code.

Similarly, group G2 and group G4 are mutually exclusive; either ports 5 to 8 are active or port 10 is active. Displays the TDR test counter information.

Optional Number of the module. If you do not specify a number, the ports on all modules are shown. Optional Number of the port on the module. If you do not specify a number, all the ports on the module are shown. Status of the port connected, notconnect, connecting, standby, faulty, inactive, shutdown, disabled, or monitor. Duplex setting for the port auto, full, fdx, half, hdx, a-half, a-hdx, a-full, a-fdx.

In order to check to see how long the port is in Up or Down status, use the show interfaces [interface id] command. This shows the last time a port sent or received traffic. Likewise, the Last input never, output never, output hang never status means the port is not in use. This is an example of output from the show interfaces command for an interface:. In the given example, how long has the port been up? Impossible to tell. Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community:.

Cisco port status command

This chapter describes how to check switch port status and connectivity on the Catalyst enterprise LAN switches. The Catalyst enterprise LAN switches are multimodule systems. You can see what modules are installed, as well as the MAC address ranges and version numbers for each module, by using the show module command. The Catalyst G, G, and G switches are fixed-configuration switches, but are logically modular. You must apply configuration commands to the appropriate module.

Portofino west restaurant surprise az

Connection state of the port, as follows: Disabled--The port has no line module, or was disabled by the user. Just like the command executed on a switch, the same command on a Cisco router displays similar statistics such as:. To determine when a datagram reaches its destination, traceroute sets the UDP destination port in the datagram to a large value that the destination host is unlikely to be using. This example shows how to disconnect an active console port session and an active Telnet session:. Use the no keyword to disable the ICMP destination unreachable messages. If you want the switch to trace the path from a host on a source device to a host on a destination device, the switch can identify only the path from the source device to the destination device. What about errors or faults on UTP cables? Port Status and Connectivity Check. The output looks like - Best regards Andy Attachment s. Posted

This chapter describes how to check switch port status and connectivity on the Catalyst series switch.

See the following Examples:. This example shows how to disconnect an active console port session and an active Telnet session:. To enable the generation of ICMP Protocol Unreachable and Host Unreachable messages, enter the following command in interface configuration mode: Switch config-if [no] ip unreachables Use the no keyword to disable the ICMP destination unreachable messages. Kiran Meda Thanks. A ping returns one of the following responses: Normal response—The normal response hostname is alive occurs in 1 to 10 seconds, depending on the network traffic. Good luck Attachment s. The physical port might be UP but the protocol might show Down. Reply function is enabled. Skip to main content Press Enter. All switches in the physical path must have IP connectivity. Skip to content Skip to search Skip to footer. ICMP messages are sent by routers or access servers to hosts or other routers when a problem is discovered with the Internet header. View Only.