How can I tell what ports are being used on a Cisco switch?
How can I tell what ports are being used on a Cisco switch?
You can view the summary or detailed information on the switch ports using the show interface status command. To see the summary information on all ports on the switch, enter the show interface status command with no arguments.
What is the Switchport command?
switchport. You only use the switchport command on switches—not routers. It can put a port into trunk mode, into a certain VLAN, or even to set port security. Its most common use is to configure an interface to connect to an access device (e.g., workstation, server, printer, etc.).
What command is needed to be able to interface with ports on a switch?
Use the switchport access vlan command to assign the port or range of ports into access ports. A port in access mode can have only one VLAN configured on the interface which can carry traffic for only one VLAN.
How do I configure a port on a Cisco switch?
Steps
- View the port groups available in a Cisco switch: show port-resources module blade_number.
- License and acquire the required port in a port group by entering the following commands in sequence: config t interface port_number shut port-license acquire no shut.
- Save the configuration: copy running-config startup-config.
How do I find the IP of a switch port?
To find the port you must already have a good understanding of the network topology and have access to the switches CLI. First connect using putty to the core switch of the site that is doing the routing. If it returns no entry, then generate traffic to the IP address by pinging the IP address and rerun the command.
How are Cisco switch ports numbered?
The unit number together with the interface number completely identifies the port. For example, GE1/0/4 is port number 4 on the first unit of the stack. Slot Number—The slot number is always 0.
What is the no Switchport command?
The no switchport command is provided by the interface on a Layer 3 capable switch. This command can convert a Layer 2 port into a Layer 3 port and makes the port operate like a router interface rather than a switch port. What’s more, the routed port isn’t joined to any VLANs and do not support VLAN subinterfaces.
What is the impact of the no Switchport command?
The no switchport command puts the interface in L3 mode (known as “routed port”) and makes it operate more like a router interface rather than a switch port. The ip address command assigns an IP address and network mask to the interface. Routed ports can be configured with a Layer 3 routing protocol.
How do I enable a switch port?
Select Group Port Config. In the graphic for each switch that you want to configure, select the ports that you want to configure. Selected ports display green. Click the Enable Port button to enable or disable the selected ports.
How do I enable switch ports?
How do I find the IP of a Cisco switch port?
Perform a show mac address-table interface on the switch that has the device(s) connected to it. Then go to the router for the VLAN specified in the previous command and perform a show ip arp vlan | include . That will give you the IP address for the device.
What’s the port name for a Cisco switch?
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What are the Cisco IOS LAN switching commands?
Cisco IOS LAN Switching Command Reference November 2010. Introduction. This document describes the commands used to configure LAN switching and multilayer switching features in Cisco IOS software. The commands for configuring LAN Emulation (LANE) features are presented in the Cisco IOS Asynchronous Transfer Mode Command Reference.
How to check the port status of a switch?
To see summary information on all ports on the switch, enter the. show interfaces status command with no arguments. Specify a particular module number to see information on the ports on that module only. Enter both the module number and the port number to see detailed information about the specified port.
What do you need to know about Cisco commands?
Almost all Cisco devices use Cisco IOS to operate and Cisco CLI to be managed. The basic CLI commands for all of them are the same, which simplifies Cisco device management. Here is a Cisco commands cheat sheet that describes the basic commands for configuring, securing and troubleshooting Cisco network devices.