User's Manual
Table Of Contents
- Front Cover
- Contents
- List of Figures
- List of Tables
- List of Code Listings
- Legal Disclaimer
- Regulatory Information
- Typographic Conventions
- Important Notice
- Hardware Setup
- 1 Introduction
- 2 Overview of the TTE-Switch Lab Space
- 3 Functional Description
- 4 Getting Started
- 5 State Machine
- 6 Configuring the TTE-Switch Lab Space
- 7 Diagnosis
- 8 Troubleshooting
- Appendix A Default Configuration
- Appendix B MIBs
- Glossary
- Bibliography
- Index
8. TROUBLESHOOTING
8 Troubleshooting
8.1 Basic Checks
If you encounter a malfunction of the TTE-Switch Lab Space, there are some basic checks you can per-
form:
• Does the power fuse work? If the power fuse works, but the LEDs of the switch still do not light up,
have the AC wall socket checked to see if the wall socket is working as intended.
• Is the pin programming of the GPIO interface correct for the desired configuration?
• What do the status LEDs display? See Section 3.2.3.3 on page 19 for details.
• Are all temperatures within the allowed ranges? See Section 3.3 on page 19 for details and check
the SNMP client output for the temperature values of the different sensors.
8.2 SpaceWire Hot-Plugging Issues
If you run into hot-plugging issues with SpaceWire, the following procedure has been proven to work
during tests:
1. Plug in the SpaceWire cable
2. Power on the SpaceWire component
3. Power up the TTE-Switch Lab Space
Alternatively, hit the reset button upon connecting the SpaceWire cable to the TTE-Switch Lab Space.
8.3 The arp Command Fails
The arp command needs to be run as administrator.
If you get an error message that states that The ARP entry addition failed: Access is denied., find
out the interface name (i.e., the name of the network card) and add it to the list:
1. netsh interface show interface
2. netsh interface ip add neighbors "<interface name>" <gateway IP> <gateway MAC>
Example
netsh interface ip add neighbors "Ethernet 4" 10.10.10.10 A6-A7 -A8 -00 -01-20
8.4 The tftp Command Does Not Work
To use the TFTP client through the tftp command, TFTP has to be enabled in the operating system. On
Microsoft Windows this can be achieved as follows:
1. Open the menu.
2. Type Turn Windows features on or off and press Enter .
3. Select the checkbox next to TFTP Client and press OK.
8.5 No Link Is Established
If no link is established, autonegation may be the culprit. A crossover cable is needed to create a link in
this case.
A crossover cable is also needed if the two devices that are to be linked both have autonegation set to
disabled.
© TTTech Computertechnik AG 2019. All rights reserved.
Confidential and Proprietary Information
37
Document Number:
D-863-M-05-001