HP 8800 Router Series Installation Manual Page 50
- Page / 121
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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Table 21 Fan LEDs
LED Status Description
RUN
Off
The fan tray has failed.
Steady green
The fan tray is operating properly.
ALM
Off
The fan tray is in a normal state.
Steady red
The fan tray is faulty.
When the RUN LED is off or the ALM LED is on, the fan tray fails. To troubleshoot the fan tray:
1. If both LEDs are off, examine the power supply to make sure it is operating properly. For more
information, see "Power supply system failure."
2. Check for blockage of the air intake and exhaust vents on the chassis. If they are blocked,
clean them to keep the air flowing.
3. Unplug the fan tray and plug it in again.
4. Plug a spare fan tray into the slot. If the spare fan tray works properly, you can conclude that
the old fan tray has failed.
5. If there is still a failure, contact HP Support.
MPU failure
The appearance of routers varies by model. Figure 29 uses SR02SRP1F3 as an example.
Figure 29 MPU LEDs
(1) CF card status LED
(CFS)
(2) Network management port LED
(
A
CT)
(3) Network management port LED
(LINK)
(4) MPU status LED (SFS) (5) MPU status LED (
A
CT) (6) MPU status LED (RUN)
(7) MPU status LED (
A
LM) (8) LPU status LED (RUN) (9) LPU status LED (
A
LM)
When the MPU is operating properly, the RUN LED blinks and the ALM LED is off. When the RUN
LED is off, the MPU fails. To troubleshoot the MPU:
1. Verify that the power supply is operating properly. For more information, see "Power supply
system failure."
45
- HP A8800 Routers 1
- Contents 3
- Preparing for installation 6
- Installation tools 8
- Installing the router 10
- Grounding the router 16
- Installing the power system 17
- Installing a DC power supply 18
- Installing a card 19
- Installing an SPE subcard 20
- Connecting power cables 21
- Connecting DC power cables 22
- Verifying the installation 24
- Logging in to the router 25
- Powering on the router 31
- Configuration Guide 33
- Connecting an optical fiber 35
- Installing an FMT (optional) 36
- Hardware management 38
- Rebooting the router 39
- RX loss of signal 45
- Field Remarks 46
- Table 18 Command output 47
- Field Descri 47
- Troubleshooting 48
- Fan failure 49
- MPU failure 50
- LPU failure 51
- Interface failure 51
- Technical support 52
- Replacement procedures 53
- Replacing an AC power supply 54
- Replacing a card 56
- Replacing a subcard 58
- Replacing a fan tray 59
- Replacing a CF card 62
- <Sysname> umount cfa0: 63
- Hardware specifications 66
- Figure 45 A8805 front view 67
- A8808 chassis views 68
- Figure 47 A8808 front view 69
- Figure 48 A8808 rear view 70
- A8812 chassis views 71
- Figure 50 A8812 rear view 72
- Cooling system 73
- A8805 and A8812 airflow 74
- A8808 airflow 75
- Card specifications 76
- MPU specifications 78
- SPC card specifications 79
- SPE card specifications 79
- Subcard specifications 80
- OAA module specifications 81
- Power supply system 82
- Table 33 AC power supply LEDs 83
- LED Status Description 83
- Power supply LEDs 89
- Fan LEDs 89
- MPU LEDs 90
- SPC card LEDs 91
- LINK/ACT LED 92
- Combo interface LED 92
- LINK and ACT LEDs 92
- SPE card LED 93
- Subcard LEDs 93
- Transceiver modules 94
- Lightning protection 99
- Engineering labels 101
- Generic labels 102
- Labels for devices 103
- Filling in labels 103
- Affixing labels 103
- B02 03 12 104
- Affixing a generic label 105
- Guidelines 106
- Examples 106
- Cable management 113
- Cable management examples 114
- NOTE: 115
- Support and other resources 117
- Conventions 118
- Network topology icons 119
- Port numbering in examples 119
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