#Cat5 loopback manual#
#Cat5 loopback mac#

Loopback-detection action īy default, when a loop is detected on an interface, the interface does not receive or send packets, and the system generates traps and log messages and deletes all MAC address entries of the interface. Set the protective action to take on the interface when a loop is detected. Enable loopback detection in all the VLANs on the trunk or hybrid port.īy default, a trunk or hybrid port performs loopback detection only in its PVID.ĩ. Enable loopback detection control on a trunk port or a hybrid port.īy default, loopback detection control is disabled.Ĩ. Enable loopback detection on the interface.īy default, loopback detection is disabled.ħ. To configure loopback detection on a group of Ethernet interfaces, enter port group view.Ħ. To configure loopback detection on one interface, enter Ethernet interface view.

#Cat5 loopback manual#

Enter Ethernet interface view or port group view.Įnter Ethernet interface view: interface interface-type interface-numberĮnter port group view: port-group manual port-group-name Loopback-detection multi-port-mode enableīy default, multi-port loopback detection is disabled, and the device can only detect single-port loopback.ĥ.

For more information about the shutdown-interval time command, see Fundamentals Command Reference.īy default, global loopback detection is disabled. The detection interval is 30 seconds by default. The looped port is recovered automatically after the detection interval configured by using the shutdown-interval time command. With the shutdown keyword specified, the looped port is automatically shut down and its physical state changes to Loop down. For more information about the p ort link-type command, see Layer 2 - LAN Switching Command Reference. When you change the link type of an Ethernet interface by using the p ort link-type command, the switch removes the protective action configured on the interface. To enable a hybrid or trunk port to take the administratively specified protective action, you must use the loopback-detection control enable command on the port. To disable loopback detection on all interfaces, run the undo loopback-detection enable command in system view.

Check wall to switch connections easily without a cable. Easily check for broken or shorted wires. The Networx® RJ45 Loop back tester will negate the necessity to carry a bulky network hub around. Once the Ethernet Loopback testing tool is ready, lets verify Ethernet ports on Cisco hardware. These Loop back testers will make the life of a network administrator really easy. To use loopback detection on an Ethernet interface, you must enable the function both globally and on the interface. Crimp the wires in RJ-45 connector through Crimping Tool. Configuration restrictions and guidelines