MAC-REWRITE Error: None, Loopback: Local, Source filtering: Disabled, Flow control: Enabled, Speed Configuration: Autoĭevice flags : Present Running Loop-Detected Link-level type: Ethernet, MTU: 1514, MRU: 1522, LAN-PHY mode, Speed: 10Gbps, BPDU Error: None, Loop Detect PDU Error: None, Interface index: 187, SNMP ifIndex: 591, Generation: 190 Physical interface: xe-2/0/0, Enabled, Physical link is Up Sample Output show interfaces xe-2/0/0 extensive

Mode command: show interfaces ( xe- fpc/ pic/ port | et- fpc/ pic/ port) Is up, use the following Junos OS command-line interface (CLI) operational To verify that the status of the Gigabit Ethernet interface Interfaces interface-name gigether-options hierarchy level, places the interface into local loopback mode. Simply including the loopback statement at the [edit There is no option to use a local or remote statement. On anĮthernet interface, you cannot create a remote loopback, therefore Of the PIC but does not test the transmit and receive ports. A local loopback tests the interconnection When you create a local loopback, you create an internal loop In configuration mode, go to the following hierarchy level: edit interfaces interface-name gigether-optionsĬonfigure the local loopback: [edit interfaces interface-name set loopbackįor example: [edit interfaces xe-2/0/0 showįor example: [edit interfaces xe-2/0/0 commit The transmit port to the receive port, follow these steps: To configure a local loopback without physically connecting Perform Steps 2 through 8 from Diagnose a Suspected Hardware Problem with a Fast Show interfaces (xe- fpc/pic/port | et- fpc/pic/port ) extensive Interface (xe- fpc/pic/port | et- fpc/pic/port count 100Ĭheck for Gigabit Ethernet Interface Error Statistics Show interfaces (xe- fpc/pic/port | et- fpc/pic/port) Ĭlear Gigabit Ethernet Interface StatisticsĬlear interfaces statistics xe- fpc/pic/port | et- fpc/pic/port Show interfaces (xe- fpc/pic/port | et- fpc/pic/port)Ĭonfigure a Static Address Resolution Protocol Table

Verify That the Gigabit Ethernet Interface Is Up For Using Loopback Testing for 10, 40, and 100 Gigabit Ethernet Interfacesĭiagnose a Suspected Hardware Problem with a GigabitĬreate a Physical Loopback for a Fiber-Optic InterfaceĬonnect the transmit port to the receive port.

Cat5 loopback