Table of Contents
Advertisement
Link Status
Link Status
Verify that both sides have links. A single broken wire or a shutdown port can show the link that is established
on one side even though the other side does not have a link.
A port LED that is in ON status does not guarantee that the cable is fully functional. The cable might have
encountered physical stress that causes it to function at a marginal level. If the port LED does not turn ON,
do the following:
• Connect the cable from the field device to a functioning good device.
• Ensure that both ends of the cable are connected to the correct ports.
• Verify that both devices have power.
• Verify that you are using the correct cable type.
• Check for loose connections. Disconnect the cable and reconnect it if it is not seated properly.
10/100/1000 PoE+ Port Connections
If a powered device that is connected to a PoE+ port does not receive power, do the following:
• Verify that the power supply installed in the OLT meets the power requirements of your connected
• Verify the cable type.
Cisco Catalyst PON Series OLT Troubleshooting
The following sections describe how to troubleshoot issues relating to the Cisco Catalyst PON Series OLT.
SFP and SFP+ Module
Use only Cisco SFP or SFP+ modules. Each Cisco module has an internal serial EEPROM that is encoded
with security information. This encoding provides a way for Cisco to identify and validate that the module
meets the requirements for the switch.
You can perform the following checks:
• Inspect the SFP module. Exchange the module with a functioning module. Verify that the module is
• Use the show interfaces command in privileged EXEC mode to see if the port or module is error-disabled,
Cisco Catalyst PON Series Switches Hardware Installation Guide
56
devices.
Caution
Noncompliant cabling or powered devices can cause a PoE+ port fault. Use only
standard or compliant cabling to connect Cisco devices. You must remove any
cable or device that causes a PoE+ fault.
supported on this platform.
disabled, or shut down. Reenable the port, if needed.
Troubleshoot
Advertisement
Table of Contents
Troubleshooting
