IBM ATM OC-3c Manual de usuario Pagina 118
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D-24 A
PPENDIX
D: T
ROUBLESHOOTING
Cleaning Dirty Fiber Optic Connectors
To prevent dirt and dust from collecting on the fiber
optic connectors, avoid touching all surfaces after
cleaning the connectors, and keep all unused ports
covered.
Fiber optic transceivers are sensitive optical devices
that need to be handled carefully. If dirt collects on
the fiber optic connectors, you may notice the
following:
■
The Link Status LED (for the receive fiber) on the
ATM Module does not light.
■
The Far End Status LED does light.
■
Degraded performance on that port, indicated by
an increase in the Errors Received statistic counter.
The Errors Received statistic counter is described in
“ATM Port Statistics” on page 9-3.
To clean fiber optic connectors on the ATM Module:
1
Remove any accumulated dust or debris from the
connector by blowing canned air over all surfaces.
Do not use commercial compressed air or house air,
because of the risk of oil contamination.
2
Reconnect the cable to the port to see if the dusting
corrected the problem.
If the LED still indicates a problem, clean the cable
connectors.
To clean the cable connectors:
1
Gently wipe the port with a lint-free, non-abrasive
swab.
2
Gently wipe the connectors with a lint-free,
non-abrasive wipe or pad.
- User’s Guide 1
- Introduction 7
- Terminology 7
- Conventions 8
- Related Documentation 9
- ATM Benefits 11
- ATM Module Features 12
- Figure 2-1 13
- Network Layer Architecture 13
- Upper Layer Protocols 14
- What is LAN Emulation (LANE)? 14
- LAN Emulation Components 15
- Figure 2-2 16
- Joining the ELAN 17
- Figure 2-3 18
- ATM Adaptation Layer (AAL) 20
- ATM is Service Transparent 21
- ATM is Connection-oriented 21
- Figure 2-6 22
- Connection Terminology 22
- Figure 2-7 23
- ATM Interfaces 24
- Figure 2-9 25
- UNI Management Entities 25
- Figure 2-10 26
- ATM Cell Structure 26
- Physical Layer 27
- What is a Virtual LAN (VLAN)? 29
- Creating Inter-switch VLANs 29
- Figure 3-2 30
- VLAN to ELAN Mapping 30
- Figure 3-3 31
- Planning Your Network 33
- ATM Configuration Rules 34
- Figure 4-1 36
- ONFIGURATION 37
- Campus Configuration 38
- Campus Configuration 5-3 39
- Figure 5-3 40
- Resilient Link Configuration 40
- Following Safety Information 41
- Nebezpečenstvo: 42
- Device Support 43
- Pre-installation Procedure 43
- Installation 44
- Post-Installation Checks 45
- LED Summary 46
- Checking the Power Supply 47
- CCESSING 49
- ANAGEMENT 49
- Figure 7-1 50
- Screen Map 50
- Logging On 51
- Logging Off 52
- Figure 8-1 53
- Management Screen Map 53
- Configuring an ATM Port 54
- Configuring an ATM Port 8-3 55
- Figure 8-3 56
- ATM LEC Setup Screen 56
- Displaying all VLANs 57
- ATM Port Setup 58
- ATM Port Setup 8-7 59
- Mapping Far End MAC Addresses 60
- Displaying an ATM Connection 62
- Setting Up Resilient Links 63
- Upgrading Software 64
- Error Messages 65
- Status Messages 66
- ONITORING 67
- Statistics Overview 68
- ATM VLAN LEC Status 71
- ATM VLAN LEC Status 9-7 73
- ATM VLAN LEC Status 9-9 75
- ATM Physical Layer Statistics 76
- Figure 9-5 77
- Physical Layer Statistics 77
- NFORMATION 81
- Safety Notices A-3 83
- Safety Notices A-5 85
- Safety Notices A-7 87
- PECIFICATIONS 91
- C: ATM M 92
- ATM Cable Specification C-3 93
- Using LEDs 96
- Identifying the Problem 97
- Figure D-1 98
- Troubleshooting Flow Diagram 98
- Figure D-2 99
- Figure D-3 100
- ATM Port Setup Screen 100
- Figure D-4 101
- ATM Port Statistics 101
- Figure D-5 102
- ATM VLAN LEC Status Screen 102
- Identifying the Problem D-9 103
- ROUBLESHOOTING 104
- Identifying the Problem D-11 105
- Identifying the Problem D-13 107
- Is the LEC Operational Now? 108
- — Go to step 25 108
- ELAN Configuration Problems 109
- Figure D-8 110
- ATM VLAN LEC Setup 110
- Solving Known Problems 111
- Power Supply Problems 112
- Solving Known Problems D-19 113
- Cable Connection Problems 114
- ATM Problems 115
- VLAN or ELAN Problems 116
- Solving Known Problems D-23 117
- ECHNICAL 119
- RADEMARKS 121
- ARRANTIES 121
- Statement of Limited Warranty 122
- Warranty Service 123
- Extent of Warranty 123
- Limitation of Liability 124
- Electronic Emission Notices 125
- European Union (EU) Statement 126
- (VCCI) Statement Class B 127
- Information To The User 127
- IBLIOGRAPHY 135
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