Cisco port status command

It can be very useful at troubleshooting connectivity issues and cisco port status command 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.

The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language. The Catalyst series switch is a modular system.

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".

Depending on the cisco port status command abitat, it can determine roughly where a cable fault could be. This example shows how to use the traceroute command to display the route that a packet takes through the network to reach its destination:.

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.

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. For example, on a Catalyst G series switch, the 24 Fast Ethernet ports belong logically to module 2.

Cisco port status command

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?

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For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Nice modification -. Before you can open a Telnet session to the switch, you must first set the IP address and in some cases the default gateway for the switch. The above gives me a quick status update of each available interface on the switch, on which VLAN it belongs, speed settings etc. To see the summary information on all ports on the switch, enter the show interface status command with no arguments. For example, one interface might be connected to a Frame Relay connection. Enter both the module number and the port number to see detailed information about the specified port. Written By Harris Andrea. This blog entails my own thoughts and ideas, which may not represent the thoughts of Cisco Systems Inc. You can view the summary or detailed information on the switch ports using the show interface status command. The second router sees a TTL value of 1, discards the datagram, and returns the Time-Exceeded message to the source. Find Matches in This Book. When the switch detects a device in the path that does not support Layer 2 traceroute, the switch continues to send Layer 2 trace queries and lets them time out. Status of the port connected, notconnect, connecting, standby, faulty, inactive, shutdown, disabled, or monitor.

If you connect a port undergoing a TDR test to a BASE-T port such as that on the device, the unused pairs and are reported as faulty because the remote end does not terminate these pairs.

Switch Switch traceroute mac ip 1. This example shows how to display MAC address table information for a specific interface:. Sign in. 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. Occasionally, network devices must know the subnet mask for a particular subnetwork in the internetwork. Normal response—The normal response hostname is alive occurs in 1 to 10 seconds, depending on the network traffic. If the IP address is not resolved, the path is not identified, and an error message appears. Note If you enter the no ip unreachables command, you will break the path MTU discovery functionality. The second router sees a TTL value of 1, discards the datagram, and returns the Time-Exceeded message to the source. The logout timer automatically disconnects a user from the switch when the user is idle for longer than the specified time.