Output flow control is off, input flow control is off Hardware is TenGigE, address is 65 (bia 65) TenGigE0/0/1/1 is up, line protocol is up Success rate is 100 percent (10000/10000), round-trip min/avg/max = 1/1/5 msĬheck Interface Counters RP/0/RSP0/CPU0:ASR9001-F# show interfaces tenGigE 0/0/1/1 Pings with timeout=0 may result in system instability andĬontrol protocol flaps resulting in traffic impact.ĭO you really want to continue : y RP/0/RSP0/CPU0:ASR9001-F# clear counters tenGigE 0/0/1/1Ĭlear "show interface" counters on this interface This clears counters on both the interface and controller. RP/0/RSP0/CPU0:ASR9001-F(config-if)# end Clear Counters RP/0/RSP0/CPU0:ASR9001-F(config-if)# loopback internal ![]() This is traffic impacting RP/0/RSP0/CPU0:ASR9001-F# configure It can find problems with the CPU, fabric path, NP and transceiver, but it cannot find optical or transit problems. This is a basic test that can be performed without access to a remote site. The below examples use this interface: RP/0/RSP0/CPU0:ASR9001-F# show run int tenGigE 0/0/1/1 Internal loops can be done remotely, but don't provide as much information.Įxternal loops must be performed at the site, but give the greatest amount of information. There are two primary kinds of loopbacks: internal and external. When necessary, loopbacks can be used to find problems with line cards, fabric, Network Processors (NPs), transceivers, or optical transit paths. The following table lists the Ethernet coaxial-type connection limits for 10-Mbps transmission.Using Loopbacks to Test Ethernet Interfaces The table below lists the Ethernet Version 2 and IEEE 802.3 physical characteristics of the Ethernet cable.Įthernet Coaxial-type Connection Limits for 10-Mbps Transmission Ethernet Version 2 and IEEE 802.3 Physical Characteristics Pin 1ġAny pin not referenced is not connected. The table below lists the different pins and their appropriate signals. This section explains the Ethernet port and cable specifications. The transceiver may either be directly connected to the AUI port or through an AUI Cable as illustrated below: These AUI ports are designed to connect to an external transceiver for conversion to a specific media type (such as twisted pair, coax, or fiber). Background Informationįor flexibility, some Cisco routers provide a generic AUI connector for Ethernet ports. ![]() Conventionsįor more information on document conventions, see the Cisco Technical Tips Conventions. ![]() If your network is live, make sure that you understand the potential impact of any command. All of the devices used in this document started with a cleared (default) configuration. The information in this document was created from the devices in a specific lab environment. The information in this document is based on the software and hardware versions: There are no specific requirements for this document. This document explains the Ethernet AUI port, the cabling specifications, and the port pinouts.
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