Alaxala AX1240S Series Průvodce řešením problémů Strana 1

ALAXALA AX2200S/AX1250S/AX1240S Troubleshooting Guide AX1240S-T001X-70

Preface VI

3. Troubleshooting Functional Failures During Operation 78

79 4. Obtaining Failure Information This chapter mainly describes how to obtain failure information. 4.1 Obtaining failure information 4.2 Writin

4. Obtaining Failure Information 80 4.1 Obtaining failure information You can use the show tech-support operation command to collect information when

4. Obtaining Failure Information 81 4.2 Writing data to a memory card Failure information copied to the RAMDISK can be written to a memory card. Note

4. Obtaining Failure Information 82 4.3 Transferring files via FTP Failure information copied from the RAMDISK can be transferred to a remote termina

83 Appendix A.1 Detailed display contents of the "show tech-support" command

A. Detailed display contents of the show tech-support command 84 A. Detailed display contents of the show tech-support command A.1 Detailed display co

A. Detailed display contents of the show tech-support command 85 No. Command (displayed) Description No parameter specified 15 show mc-file Memory

A. Detailed display contents of the show tech-support command 86 No. Command (displayed) Description No parameter specified 41 show spanning-tree p

A. Detailed display contents of the show tech-support command 87 No. Command (displayed) Description No parameter specified 66 show web-authenticat

Safety - 1 Safety Information Using AX2200S, AX1250S, and AX1240S series switches correctly and safely  This manual provides important information

A. Detailed display contents of the show tech-support command 88 No. Command (displayed) Description No parameter specified 87 show wol-authenticat

A. Detailed display contents of the show tech-support command 89 No. Command (displayed) Description No parameter specified 108 show cfm fault deta

A. Detailed display contents of the show tech-support command 90

91 Index 1 1000BASE-T troubleshooting, 26 1000BASE-X troubleshooting, 27 100BASE-FX [AX1250S] troubleshooting, 27 100BASE-TX troubleshooting, 25, 26

Index 92 forgotten user ID, 14 from remote terminal not possible, 16 troubleshooting, 14 login authentication using RADIUS not possible, 17 long-life

Index 93 communication failures when link aggregation used, 30 Ethernet port, 24 functional failures during operation, 13 how to get failure informati

Safety Information Safety - 2 If anything seems wrong, immediately turn off the power.  If smoke or an unusual smell is coming from the Switch, or

Safety Information Safety - 3 Ensure that the capacity for incoming current to the distribution board is greater than the operating current of the cir

Safety Information Safety - 4 Ground the Switch.  Always use a grounded outlet. Failure to do so might not only result in electric shock, but it

Safety Information Safety - 5 Do not remove the Switch cover.  Do not remove the Switch cover. Doing so could result in electric shock. The follo

Safety Information Safety - 6 Do not place the Switch in a place where it is unstable.  If placing the Switch on a desk, lay it on its side on a

Safety Information Safety - 7 Use the Switch's power button to turn off the Switch power. Do not touch the Switch directly if you have a metal

Safety Information Safety - 8 Ensure adequate heat dissipation from the Switch by not stacking devices.  As the AX2230S-24T, AX1250S-24T2C, and A

Safety Information Safety - 9 Handle memory cards carefully.  When inserting a memory card, do not push the card too strongly or flick it with you

 Relevant products This manual applies to models of the AX2200S series switch, the AX1250S series switch, and the AX1240S series switch.  Export r

Safety Information Safety - 10 Wear an antistatic wrist strap when carrying or packing a switch.  Be sure to wear an antistatic wrist strap. If y

i Contents Preface ...

Contents ii 3.9.2 Traps cannot be received by the SNMP manager ... 68 3.10 Communication failures in the n

1 1. Overview This chapter provides an overview of failure analysis. 1.1 Overview of analyzing failures 1.2 Overview of failure analysis for the e

1. Overview 2 1.1 Overview of analyzing failures Use this manual when there is a problem on an AX2200S, AX1250S, or AX1240S series switch. When fail

1. Overview 3 1.2 Overview of failure analysis for the entire Switch or a part of the Switch If a failure occurs during operation and the actual Swi

1. Overview 4 No. Model name Type Functionality Description 7 LINK LED: Green Indicates the operating status of a 1000BASE-T/1000BASE-X Etherne

1. Overview 5 1.3 Overview of functional failure analysis The following table provides an overview of analyzing functional failures on the Switch. T

1. Overview 6 Category Sub-category See 100BASE-FX [AX1250S] /1000BASE-X communication failure 3.4.4 Actions to be taken for 100BASE-FX [AX1250S]/1

1. Overview 7 Category Sub-category See Traps cannot be received. 3.9.2 Traps cannot be received by the SNMP manager Information about neighboring

(Edition 7) Summary of amendments Location and title Changes Failures occurring when the Ring Protocol functionality is used  A description of th

1. Overview 8

9 2. Troubleshooting Switch Failures This chapter describes how to take actions when a failure occurs on a Switch. 2.1 Troubleshooting Switch Fail

2. Troubleshooting Switch Failures 10 2.1 Procedure for handling switch faults Use the procedure described below if a failure occurs on a Switch. Tab

2. Troubleshooting Switch Failures 11 Table 2-2 Action to take when the Switch stops and the PWR LED turns off No. Failure description Action 1 Th

2. Troubleshooting Switch Failures 12

13 3. Troubleshooting Functional Failures During Operation This chapter describes what actions to take when a problem occurs, such as when a Switch

3. Troubleshooting Functional Failures During Operation 14 3.1 Login-related problems 3.1.1 Forgotten login password During operation, if a user for

3. Troubleshooting Functional Failures During Operation 15 3.2 Operation terminal problems 3.2.1 Information cannot be entered from the console or do

3. Troubleshooting Functional Failures During Operation 16 No. Failure description Items to check 5 Login is not possible. Perform the following

3. Troubleshooting Functional Failures During Operation 17 No. Problem Action 2 Login is not possible. Perform the following procedure: 1. Make

(Edition 3) Summary of amendments Location and title Changes Login-related problems : troubleshooting : login-related problem : login  The action

3. Troubleshooting Functional Failures During Operation 18 set-number-of-RADIUS-servers If the time increases significantly, an application on a remo

3. Troubleshooting Functional Failures During Operation 19 3.3 Problems occurring while saving files 3.3.1 Information cannot be saved in the startup

3. Troubleshooting Functional Failures During Operation 20 No. Items to check and commands Items to check 3 Try to execute the format mc operation

3. Troubleshooting Functional Failures During Operation 21 3.3.4 Update by using the ppupdate operation command is not possible If update by using th

3. Troubleshooting Functional Failures During Operation 22 No. Items to check and commands Items to check 2 Try to execute the show critical-loggin

3. Troubleshooting Functional Failures During Operation 23 No. Items to check and commands Items to check 3 If the hardware revision is shown as a

3. Troubleshooting Functional Failures During Operation 24 3.4 Network interface communication failures 3.4.1 Ethernet port cannot be connected If it

3. Troubleshooting Functional Failures During Operation 25 No. Items to check and commands Action Use the show efmoam operation command to make s

3. Troubleshooting Functional Failures During Operation 26 No. Items to check Cause Action the Cause and Action columns.  Link down Replace w

3. Troubleshooting Functional Failures During Operation 27 No. Items to check Cause Action whether there is a count for the following item for th

I Preface Relevant products This manual applies to the models of AX2200S, AX1250S, and AX1240S series switches. The manual describes the functionalit

3. Troubleshooting Functional Failures During Operation 28 Isolate the cause of the problem according to the failure analysis method described in the

3. Troubleshooting Functional Failures During Operation 29 No. Items to check Cause Action 4 If automatic switching to the SFP transceiver does no

3. Troubleshooting Functional Failures During Operation 30 No. Items to check and commands Action 4 Execute the activate power inline operation com

3. Troubleshooting Functional Failures During Operation 31 Table 3-15 Communication failure analysis method when link aggregation is used No. Items

3. Troubleshooting Functional Failures During Operation 32 3.5 Layer 2 network communication failures 3.5.1 Layer 2 communication by VLANs is not pos

3. Troubleshooting Functional Failures During Operation 33 address set for a VLAN by using the Layer 2 authentication functionality has not been set

3. Troubleshooting Functional Failures During Operation 34 0010.c6ce.e1c6 1024 MacAuth 0/29 0012.e284.c703 1024 Dynamic 0/49-50 001b.

3. Troubleshooting Functional Failures During Operation 35 Table 3-16 Failure analysis method for Spanning Tree No. Items to check and commands Act

3. Troubleshooting Functional Failures During Operation 36 3.5.3 Failures occurring when the Ring Protocol functionality is used This subsection desc

3. Troubleshooting Functional Failures During Operation 37 No. Items to check and commands Action 3 Use the show axrp operation command to check t

Preface II Abbreviations used in the manual AC Alternating Current ACK ACKnowledge ADSL Asymmetric Digital Subscriber Lin

3. Troubleshooting Functional Failures During Operation 38 No. Items to check and commands Action 2 Check the connection between the DHCP server a

3. Troubleshooting Functional Failures During Operation 39 No. Items to check and commands Action 3 Check the status of the ST1 LED on the front o

3. Troubleshooting Functional Failures During Operation 40 No. Items to check and commands Action operation command to check the configuration. If

3. Troubleshooting Functional Failures During Operation 41 No. Items to check and commands Action If Can't execute is displayed, remove the m

3. Troubleshooting Functional Failures During Operation 42 No. Items to check and commands Action binding operation command to check the time that

3. Troubleshooting Functional Failures During Operation 43 Figure 3-2 Analysis flowchart Table 3-23 Failure analysis method for multicast forwarding

3. Troubleshooting Functional Failures During Operation 44 No. Items to check and commands Action 3 If multicast forwarding is not performed, use t

3. Troubleshooting Functional Failures During Operation 45 Figure 3-3 Analysis flowchart Table 3-24 Failure analysis method for multicast forwarding

3. Troubleshooting Functional Failures During Operation 46 No. Items to check and commands Action 3 If multicast forwarding is not performed, use t

3. Troubleshooting Functional Failures During Operation 47 3.6 IPv4 network communication failures 3.6.1 Communication is not possible or is disconne

Preface III bit/s bits per second (can also appear as bps) BPDU Bridge Protocol Data Unit BRI Basic Rate Interface CC

3. Troubleshooting Functional Failures During Operation 48 (1) Checking the device failure log One probable cause of disabled communication is a line

3. Troubleshooting Functional Failures During Operation 49 Switch is not possible, do the following: 1. Make sure the customer's terminal has t

3. Troubleshooting Functional Failures During Operation 50 3.7 Layer 2 authentication communication failures 3.7.1 Communication failures occurring w

3. Troubleshooting Functional Failures During Operation 51 No. Items to check and commands Action 4 Execute the show dot1x statistics operation co

3. Troubleshooting Functional Failures During Operation 52 No. Items to check and commands Action 7 Execute the show dot1x logging operation comma

3. Troubleshooting Functional Failures During Operation 53 No. Items to check and commands Action  (Reason: Invalid Tunnel-Private-Group-ID At

3. Troubleshooting Functional Failures During Operation 54 as a VLAN after RADIUS authentication.  Specify a unique VLAN name. If the same VLAN name

3. Troubleshooting Functional Failures During Operation 55 No. Items to check and commands Action 4 Check the setting of the authentication IPv4 a

3. Troubleshooting Functional Failures During Operation 56 No. Items to check and commands Action [Legacy mode]  Make sure the VLAN ID of the

3. Troubleshooting Functional Failures During Operation 57 #2 Be careful of the following when using a VLAN name configured using the name configurat

Preface IV LLC Logical Link Control LLDP Link Layer Discovery Protocol LLQ+3WFQ Low Latency Queueing + 3 Weighted Fair Queueing LSP

3. Troubleshooting Functional Failures During Operation 58 No. Items to check and commands Action 4 Check the filtering configuration. Certain pa

3. Troubleshooting Functional Failures During Operation 59 (c) Identifying the range for a failure (from the Switch) If a failure has not occurred o

3. Troubleshooting Functional Failures During Operation 60 No. Items to check and commands Action [Fixed VLAN mode]  If the mac-authentication

3. Troubleshooting Functional Failures During Operation 61 No. Items to check and commands Action 4 Use the show mac-authentication statistics ope

3. Troubleshooting Functional Failures During Operation 62 #1 If the switchport mac vlan configuration command has not been set, check whether the VL

3. Troubleshooting Functional Failures During Operation 63 No. Items to check and commands Action 2 VLAN interface setting [Fixed VLAN mode] Make

3. Troubleshooting Functional Failures During Operation 64 No. Items to check and commands Action 2 Make sure the URL of the user authentication p

3. Troubleshooting Functional Failures During Operation 65 No. Items to check and commands Action 8 If the startup check is enabled, check the IP

3. Troubleshooting Functional Failures During Operation 66 3.8 Communication failures in the high-reliability functionality based on a redundant con

3. Troubleshooting Functional Failures During Operation 67 No. Items to check and commands Action 7 Check whether the sending of flush control fra

Preface V RSTP Rapid Spanning Tree Protocol SA Source Address SD Secure Digital SDH Synchronous Digital Hierarchy SDU

3. Troubleshooting Functional Failures During Operation 68 3.9 SNMP communication failures 3.9.1 MIBs cannot be obtained from the SNMP manager Make s

3. Troubleshooting Functional Failures During Operation 69 3.10 Communication failures in the neighboring device management functionality 3.10.1 Neig

3. Troubleshooting Functional Failures During Operation 70 No. Items to check and commands Action 5 Execute the show lldp operation command, and ch

3. Troubleshooting Functional Failures During Operation 71 3.11 NTP communication failures 3.11.1 Time information cannot be acquired from the NTP se

3. Troubleshooting Functional Failures During Operation 72 3.12 Communication failures in the IEEE 802.3ah/UDLD functionality 3.12.1 Port is in inact

3. Troubleshooting Functional Failures During Operation 73 3.13 Communication failures in filtering and QoS configurations 3.13.1 Checking the filter

3. Troubleshooting Functional Failures During Operation 74 3.14 Port mirroring failures 3.14.1 BPDUs are sent from a mirror port To stop sending BPD

3. Troubleshooting Functional Failures During Operation 75 3.15 Power saving functionality failures 3.15.1 LED brightness control is disabled If a pr

3. Troubleshooting Functional Failures During Operation 76 No. Items to check and commands Action 4 When the user logs in to the console (RS-232C)

3. Troubleshooting Functional Failures During Operation 77 3.16 Failures occurring when long-life solution is supported 3.16.1 Correct date not displ