Cisco 4507re Manual
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5-3 Catalyst 4500 E-Series Switches Installation Guide OL-13972-02 Chapter 5 Troubleshooting Using LEDs to Identify Startup Problems Using LEDs to Identify Startup Problems The key to success when troubleshooting the system is to isolate the problem to a specific system component. Your first step is to compare what the system is doing to what it should be doing. All system states in the startup sequence are indicated by LEDs. By checking the LEDs, you can determine when and where the system failed in the startup sequence. If you have problems after the switch is on, refer to the following subsystem troubleshooting information and the configuration procedures in the software configuration guide for your switch. After you connect the power cords to your Catalyst 4500 series switch, follow these steps to determine whether your system is operating properly: St e p 1Check the power supply LEDs: •The LED labeled GOOD should turn green when power is applied to the supply. The LED should remain on during normal system operation. •If the LED labeled GOOD does not light, or if the LED labeled FAIL lights, see the “Troubleshooting the Power Supply” section on page 5-4. NoteIf a power supply is installed and not connected to a power source, power supply LEDs indicate a failure. St e p 2Listen for the system fan assembly. The system fan assembly should be operating whenever system power is on. If you do not hear it when the switch is on, see the “Troubleshooting the Fan Assembly” section on page 5-6. St e p 3Check that the LEDs on the supervisor engine light as follows: •The LED labeled STATUS flashes orange once and stays orange during diagnostic boot tests. –It turns green when the module is operational (online). –If the system software is unable to start up, this LED stays orange. –If the LED labeled STATUS on the supervisor engine front panel is red or orange, connect a console to the management port and use the show environment command to check for possible problems. •The Ethernet management port LED turns green when the module is operational (online) and a link is established with another network device. If no signal is detected, the LED labeled LINK turns off. If there is a problem with the supervisor engine, try reseating the supervisor engine in the chassis and restarting the switch. For more troubleshooting information, see the “Troubleshooting Supervisor Engines” section on page 5-10. St e p 4Verify that the LEDs labeled STATUS on each switching module are green when the supervisor engine completes initialization. This LED indicates that the supervisor engine and switching modules are receiving power, have been recognized by the supervisor engine, and contain a valid Flash code version. However, this LED does not indicate the state of the individual interfaces on the switching modules. If an LED labeled STATUS is red or orange, try reseating the switching module or supervisor engine and restarting the switch. For more information, see the “Troubleshooting Switching Modules” section on page 5-8. If you determine that the switching module is not operating, contact Cisco TAC as described in the “Some Problems and Solutions” section on page 5-16.
5-4 Catalyst 4500 E-Series Switches Installation Guide OL-13972-02 Chapter 5 Troubleshooting System Messages St e p 5If the boot information and system banner are not displayed, verify that the terminal is set for 9600 baud, 8 data bits, no parity, and 1 stop bit and connected properly to the console port. System Messages System messages appear on the console if you have enabled console logging or appear in the syslog if you have enabled syslog. Many messages are for informational purposes only and do not indicate an error condition. Enter the show logging command to display the log messages. To better understand a specific system message, refer to the system message guide for your software release. Most messages are also documented in the Error Message Decoder tool at: http://www.cisco.com/cgi-bin/Support/Errordecoder/index.cgi System messages specific to the system components are mentioned in the corresponding sections that follow. If you see one of these messages, use the Decoder tool and follow the suggestion provided there. Troubleshooting with Software Many problems can be identified with CLI commands, and following sections will mention them as appropriate. Certain problems can be due to not having the right software to support your hardware. For the most recent software release to get the current recommended version for a particular system component, please refer to the release notes at http://www.cisco.com/en/US/products/hw/switches/ps4324/prod_release_notes_list.html Troubleshooting the Power Supply To help isolate a power subsystem problem, follow these steps: St e p 1Check whether the power supply LED labeled GOOD is on or the LED labeled FAIL is on. (on the DC multi-input power supply, the LEDs are labeled INPUT 1, 2, or 3 or OUTPUT FAIL.) St e p 2If the LED labeled GOOD is off or if the LED labeled FAIL is on, take the following steps: •Ensure that the power supply is flush with the back of the chassis. •Unplug the power cord, loosen and reinstall the power supply, tighten the captive installation screws, and then plug in the power cord. St e p 3If the LED labeled GOOD remains off, there might be a problem with the AC source or the power cable. Connect the power cord to another power source if one is available. Verify that the source power is acceptable within the specifications of the power supply. St e p 4If the LED labeled GOOD fails to light after you connect the power supply to a new power source, replace the power cord. NoteIf this unit has more than one power cord, repeat Step 1 through Step 4 for each power input.
5-5 Catalyst 4500 E-Series Switches Installation Guide OL-13972-02 Chapter 5 Troubleshooting Troubleshooting the Power Supply St e p 5If the LED labeled GOOD still fails to light when the switch is connected to a different power source with a new power cord, the power supply is probably faulty. See the “System Messages and Power Problems” section on page 5-5. You may need to replace the power supply. St e p 6If the LED labeled FAN OK fails to light when the switch is connected to a good power source with a known good power cord, there is a malfunction in the fan that cools the power supply. Replace the power supply. St e p 7If a second power supply is available, install it in the second power supply bay. St e p 8Check that the LED labeled GOOD is on for the additional power supply. Check that the LED labeled FAIL is off. St e p 9If the LEDs are not on, repeat the previous procedure to troubleshoot the second power supply. If you are unable to resolve the problem, or if you determine that either a power supply or backplane connector is faulty, contact Cisco Technical support for instructions. System Messages and Power Problems Check for system messages related to the power supply, and refer to the system message guide for your software release. You may need to add a power supply or upgrade to a larger one for your current configuration or verify that the switches are set properly on the power supply. Connect a terminal to the console port, and look for any of the following system messages (there may be others, depending on the software release): C4K_CHASSIS-2-INLINEPOWEROFF C4K_IOSMODPORTMAN-4-INLINEPOWERSUPPLYBAD C4K_IOSMODPORTMAN-4-INLINEPOWEROVERMAX C4K_CHASSIS-2-INSUFFICIENTPOWERDETECTED C4K_CHASSIS-2-INSUFFICIENTPOWERSHUTDOWN C4K_CHASSIS-3-INSUFFICIENTPOWER C4K_CHASSIS-3-INSUFFICIENTPOWERSUPPLIESDETECTED C4K_CHASSIS-3-MIXINPOWERDETECTED C4K_IOSMODPORTMAN-3-UNKNOWNPOWERSUPPLY C4K_IOSMODPORTMAN-4-POWERSUPPLYBAD C4K_IOSMODPORTMAN-4-POWERSUPPLYFANBAD C4K_SUPERVISOR-3-POWERSUPPLYSTATUSREADFAILED C4K_SUPERVISOR-3-POWERSUPPLYSEEPROMREADFAILED C4K_SUPERVISOR-3-POWERSUPPLYSEEPROMINVALID If you see any of these messages or other messages, go to the following location and enter the message text to find recommendations for your situation. http://www.cisco.com/cgi-bin/Support/Errordecoder/index.cgi
5-6 Catalyst 4500 E-Series Switches Installation Guide OL-13972-02 Chapter 5 Troubleshooting Troubleshooting the Fan Assembly Useful CLI Commands You may also use the show environment status powersupply, show module all, and show power commands to monitor PS status, load, and activity. If the show module command output shows a message that states not enough power for module, check Appendix A, “Power Supply Specifications,” for the minimum power requirements for the power supply. There may be a problem with the power source itself. Power Supply Mixing The 1400 W DC multi-input supply can not be used with other power supply types, but other power supplies in this product line work with the other types during an upgrade. If you mix power supplies in a Catalyst 4500 series chassis, the switch detects the type of power supply in power supply bay 1 (PS1) and ignores the power supply in power supply bay 2 (PS2) while issuing system messages and showing the power supply in bay 2 as in the err-disable state in the output of the show power command. When the power supply in bay 1 is removed, the switch recognizes the power supply in bay 2, and you may then put a new matching power supply in bay 1. Both supplies should resume normal function. Troubleshooting the Fan Assembly NoteAll fans must be operating or a failure will occur. Environmental problems may initially appear to be problems with the fan tray. To help isolate a fan assembly problem, follow these steps: St e p 1Check the status LED on the fan tray. •If the LED is off and the rest of the system is functioning, the fan tray is not getting power or is not seated correctly on the backplane. •If the LED is green, the fans are operating normally. There may be conditions impairing fan performance, but they are minimal in impact. •If the LED is red, one or more fans have failed. St e p 2Connect a terminal and determine the fan tray status shown by the show environment status CLI command. The status and sensor columns should say good. St e p 3Determine whether the airflow is restricted or if the ambient temperature in the room is too warm. St e p 4Determine whether the power supply is functioning properly. See the “Troubleshooting the Power Supply” section on page 5-4. St e p 5Verify that the fan assembly is properly seated in the backplane by loosening the captive installation screws, removing the fan assembly, and reinstalling it. St e p 6Restart the system. St e p 7Verify that all fans are operating. You should hear the fans at system start.
5-7 Catalyst 4500 E-Series Switches Installation Guide OL-13972-02 Chapter 5 Troubleshooting Troubleshooting Backplane Modules St e p 8If the system is still detecting a fan assembly failure, check for details using the CLI and contact the Cisco TAC for assistance. System Messages and Fan Problems Look for system messages reporting a temperature problem or problem with the fans. Individual messages may suggest different solutions. Connect a terminal to the console port, and look for any of the following system messages: C4K_CHASSIS-2-INSUFFICIENTFANSDETECTED C4K_CHASSIS-2-INSUFFICIENTFANSSHUTDOWN C4K_IOSMODPORTMAN-4-CRITICALTEMP C4K_IOSMODPORTMAN-4-FANTRAYBAD C4K_IOSMODPORTMAN-4-FANTRAYPARTIALFAILURE C4K_IOSMODPORTMAN-4-FANTRAYREMOVED C4K_SUPERVISOR-3-FANTRAYREADFAILED C4K_SUPERVISOR-3-FANTRAYSEEPROMREADFAILED C4K_SUPERVISOR-3-FANTRAYSEEPROMINVALID C4K_IOSMODPORTMAN-4-TEMPHIGH C4K_IOSMODPORTMAN-4-TEMPUNDERCRITICAL C4K_CHASSIS-2-OVERHEATINGSHUTDOWN If you see any of these messages or other messages related to fans, go to the following location and enter the message text to find recommendations for your situation. http://www.cisco.com/cgi-bin/Support/Errordecoder/index.cgi Useful CLI Commands The show environment status fantray command can give additional information useful in diagnosing fan tray problems. Troubleshooting Backplane Modules The Cisco Catalyst 4500 E-series redundancy scheme uses removable redundancy modules (also called mux-buffers), on the passive backplane to switch traffic to the active supervisor engine. There is one redundancy module per switching module. Redundancy modules and a redundant clock ship standard with every Cisco Catalyst 4507R-E and 4510R-E chassis. Spare redundancy modules (WS-X4590-E=) and a clock module (WS-X4K-CLOCK-E=) are available for serviceability. The following conditions indicate that you may need to replace the redundancy modules and clock module: •The switch powers down and stays down for a few minutes to a few days for no clear reason.
5-8 Catalyst 4500 E-Series Switches Installation Guide OL-13972-02 Chapter 5 Troubleshooting Troubleshooting Switching Modules •The output-fail LED on the power supplies are red and no power is delivered to the chassis. The other LEDs on the power supply are green. •The Status LEDs on the switching modules and the supervisor engine are flashing green. •CPU Utilization LEDs are flashing green or off. If you observe these conditions, contact the Cisco TAC for assistance in ordering replacement redundancy modules and a clock. Troubleshooting Switching Modules Each switching module has one LED labeled STATUS that provides information about the module and one numbered LED labeled LINK for each port on the module. Figure 5-1 shows the Gigabit Ethernet port and status LEDs. Figure 5-2 shows the 10/100BASE-T port LEDs. Ta b l e 5 - 1 describes the switching module LEDs and their expected behavior. Figure 5-1 Gigabit Ethernet Port and Status LEDs Figure 5-2 10/100BASE-T Port LEDs 1 268541000BASE-X SWITCHING MODULE STATUS 23 WS-X4306-GB GIGABIT ETHERNET Table 5-1 Switching Module LEDs LEDColor/Stat e Description STATUS Indicates the results of a series of self-tests and diagnostic tests performed by the switch. Green All the tests pass. Red A test other than an individual port test failed. Orange System boot, self-test diagnostics running, or the module is disabled. LINK Indicates the status of the port. Green The port is operational (a signal is detected). 17407 STATUS 4 1 2 3 4 5 56 67 78 89 910 10 111211 12WS-X4148-RJ 4 PORT 10/100 B
5-9 Catalyst 4500 E-Series Switches Installation Guide OL-13972-02 Chapter 5 Troubleshooting Troubleshooting Switching Modules System Messages and Switching Modules Connect a terminal to the console port, and look for any of the following system messages: C4K_CHASSIS-3-LINECARDMUXBUFFERTOSUPALIGNMENTWRONG C4K_CHASSIS-3-LINECARDNOTVALIDINSLOT C4K_CHASSIS-3-MODULENOTSUPPORTHALF C4K_IOSINTF-5-STALEPHYPORT C4K_IOSMODPORTMAN-4-INLINEPOWEROVERMAX If you see any of these messages or other messages, go to the following location and enter the message text to find recommendations for your situation. http://www.cisco.com/cgi-bin/Support/Errordecoder/index.cgi Useful CLI Commands Some problems can be solved by resetting the switching module. Use the hw-module module reset command to reset a switching module, or remove and re-insert the switching module, which resets, restarts, and power cycles the switching module. The show module and show diagnostics online module commands can also provide information useful in solving problems with ports on individual modules. Not all software versions support all switching modules. If you are having trouble with a module, refer to the software release notes to be sure that it is supported by your software. Orange The link has been disabled by software. Flashing orangeThe link has been disabled due to a hardware failure. Off No signal is detected. Port Status 1Indicates individual port status. Green The port is operational (a signal is detected). Orange The link has been disabled by software. Flashing orangeThe link has been disabled due to a hardware failure. Off No signal is detected. 1. LEDs labeled 1 through the number of ports on the switching module are the individual port link LEDs. Table 5-1 Switching Module LEDs (continued) LEDColor/Stat e Description
5-10 Catalyst 4500 E-Series Switches Installation Guide OL-13972-02 Chapter 5 Troubleshooting Troubleshooting Supervisor Engines Troubleshooting Supervisor Engines This section only addresses problems with hardware. Problems with features or configuration are not covered here. Refer for your software configuration guide and release notes for information on configuring features or identifying known problems. Ta b l e 5 - 2 describes the supervisor engine LEDs. Check the LEDs on your supervisor and compare them to the described LED behaviors. The Supervisor Engine LED would turn amber or orange under the following conditions: •Power supply failure (not the same as removal of power supply) •Power supply fan failure •Removal or failure of fan tray •Mismatched power supplies in the chassis Table 5-2 Supervisor Engine LEDs LED Color/State Description STATUS Indicates the results of a series of self-tests. Green All diagnostic tests passed. Red A test failed. Orange System boot or diagnostic test is in progress. Off Module is disabled. UTILIZATION Green 1–100% If the switch is operational, this display indicates the current traffic load over the backplane (as an approximate percentage). LINK Indicates the status of the 10/100BASE-T Ethernet management port or uplink ports. Green The link is operational. Orange The link is disabled by user. Flashing orange The power-on self-test indicates a faulty port. Off No signal is detected or there is a link configuration failure. ACTIVE Indicates whether the uplink port is active or not. Green The port is active. Off The port is not active. ACTIVE The LED to the right of the uplink ports is used to identify the active supervisor engine in switches with two supervisor engines.
5-11 Catalyst 4500 E-Series Switches Installation Guide OL-13972-02 Chapter 5 Troubleshooting Troubleshooting Supervisor Engines System Messages and Supervisor Engines Connect a terminal to the console port, and look for any of the following system messages: C4K_CHASSIS-3-LINECARDMUXBUFFERTOSUPALIGNMENTWRONG C4K_SUPERVISOR-3-MUXBUFFERREADSUPERVISORSELECTIONFAILED C4K_CHASSIS-3-TEMPERATURESENSORREADFAILED C4K_HW-3-X2IDENTIFICATIONFAILURE C4K_HW-3-X2OUIREGREADFAILURE C4K_HWACLMAN-4-CLASSIFCAMPARITYERROR C4K_HWACLMAN-4-CLASSIFCAMREPLYPARITYERROR C4K_HWACLMAN-4-CLASSIFCAMREQPARITYERROR C4K_HWNETFLOWMAN-3-NETFLOWSTOPPED C4K_HWNETFLOWMAN-4-FATALERRORINTERRUPTSEEN C4K_HWNETFLOWMAN-4-NONFATALPARITYERRORINTERRUPTSEEN C4K_IOSMODPORTMAN-4-NFLABSENT C4K_IOSMODPORTMAN-4-NFLIDPROMINVALID C4K_IOSMODPORTMAN-4-NFLMISMATCH C4K_REDUNDANCY-2-HANDSHAKE_TIMEOUT C4K_REDUNDANCY-2-POSTFAIL_RESET C4K_REDUNDANCY-2-INCOMPATIBLE_SUPERVISORS C4K_REDUNDANCY-2-IOS_VERSION_CHECK_FAIL C4K_REDUNDANCY-2-IOS_VERSION_INCOMPATIBLE C4K_REDUNDANCY-2-NON_SYMMETRICAL_REDUNDANT_SYSTEM C4K_REDUNDANCY-2-POSTFAIL C4K_REDUNDANCY-2-POSTFAIL_RESET C4K_REDUNDANCY-4-CONFIGSYNCFAIL C4K_SUPERVISOR-2-SUPERVISORSEEPROMINVALID C4K_SUPERVISOR-3-RETIMERDISABLEFAILED C4K_SUPERVISOR-3-RETIMERINITFAILED C4K_SUPERVISOR-3-SEEPROMREADFAILED C4K_SUPERVISOR-4-INLINEVOLTAGEOUTOFRANGE C4K_SUPERVISOR-7-SEEPROMWRITEFAILED C4K_SWITCHMANAGER-3-SSOACTIVEPORTACKTIMEOUT C4K_SYSMAN-2-POWERONSELFTESTFAIL These system messages indicate a problem with the supervisor engine. Some problems will prevent a console connection and will not allow you to use messages in diagnosing a problem. If you are unable to establish a terminal connection and the STATUS LED is red, contact Cisco TAC immediately to order a replacement.
5-12 Catalyst 4500 E-Series Switches Installation Guide OL-13972-02 Chapter 5 Troubleshooting Troubleshooting Supervisor Engines Problems with redundant supervisor systems are often due to mismatched active and standby supervisor engines. Redundancy requires that both supervisor engines be the same model, have the same amount of SDRAM memory and running the same Cisco IOS release. If one supervisor has a NetFlow service card, the other must as well. Some problems with supervisor engines are due to backplane connections that are not fully seated. If removing and reinserting the supervisor engine and then restarting the switch does not solve the problem, you may need to call Cisco TAC and replace the supervisor engine. Useful CLI Commands Some problems can be solved by resetting the supervisor engine. Use the hw-module module reset power-cycle command to reset a switching module, or remove and re-insert the switching module, which resets, restarts and power cycles the switching module. Pressing the reset button on the supervisor engine causes the software to reload, but does not power cycle the supervisor engine. NoteWhen you power-cycle or remove a supervisor engine in a redundant system the other supervisor engine becomes the active supervisor and the ports retain connectivity. In a non-redundant system, all of the switching modules lose connectivity until the supervisor engine is reinserted and completely restarted. The show diagnostics power-on command may provide useful information for some supervisor engine problems. Not all software versions support all supervisor engines. If you are having trouble with a supervisor engine, refer to the software release notes to be sure that it is supported by your software. Standby Supervisor Engine Problems If the standby supervisor engine module is not online or status indicates “other” or “faulty” in the output of the show module command or an amber status LED, create a console connection to the standby supervisor engine and verify that it is in ROMmon mode or in continuous reboot. If the standby supervisor engine is in either of these two states, refer to: http://www.cisco.com/en/US/products/hw/switches/ps663/products_configuration_example09186a008 0094ecf.shtml switch# show module Mod Ports Card Type Model Serial No. ----+-----+--------------------------------------+-----------------+----------- 1 2 1000BaseX (GBIC) Supervisor(active) WS-X4515 JAB0627065V 2 Standby Supervisor 3 48 10/100/1000BaseTX (RJ45) WS-X4448-GB-RJ45 JAB053606AG 4 48 10/100BaseTX (RJ45)V WS-X4148-RJ45V JAE060800BL M MAC addresses Hw Fw Sw Status --+--------------------------------+---+------------+----------------+--------- 1 0009.e845.6300 to 0009.e845.6301 0.4 12.1(12r)EW( 12.1(12c)EW, EAR Ok 2 Unknown Unknown Unknown Other 3 0001.6443.dd20 to 0001.6443.dd4f 0.0 Ok 4 0008.2138.d900 to 0008.2138.d92f 1.6 Ok Make sure that the supervisor engine module properly seats in the backplane connector and that you have completely screwed down the captive screws for the supervisor engine.