RUGGEDCOM ROX II
User Guide
Chapter 6
Troubleshooting
Feature Keys 821
Troubleshooting
This chapter describes troubleshooting steps for common issues that may be encountered when using ROX II or
designing a network. It describes the following tasks:
IMPORTANT!
For further assistance, contact a Customer Service representative.
• Section 6.1, “Feature Keys”
• Section 6.2, “Ethernet Ports”
• Section 6.3, “Multicast Filtering”
• Section 6.4, “Spanning Tree”
• Section 6.5, “VLANs”
Section 6.1
Feature Keys
The following describes common problems related to feature keys.
Problem Solution
A file-based feature key does not match the
hardware
Each file-based feature key is licensed to a particular device. When transfering a feature
key from one device to another, such as when configuring a backup unit to replace a
malfunctioning device, the device will detect a hardware mismatch with the key and trigger
an alarm.
Do not transfer file-based feature keys between devices. Contact a Siemens Canada Ltd.
sales representative to order a feature key matching the serial numbers of the hardware in
the destination device.
Section 6.2
Ethernet Ports
The following describes common problems related to Ethernet ports.
Problem Solution
A link seems fine when traffic levels are low,
but fails as traffic rates increase OR a link
can be pinged but has problems with FTP/
SQL/HTTP/etc.
A possible cause of intermittent operation is that of a ‘duplex mismatch’. If one end of the
link is fixed to full-duplex and the peer auto-negotiates, the auto-negotiating end falls back to
half-duplex operation.
At lower traffic volumes, the link may display few if any errors. As the traffic volume
rises, the fixed negotiation side will begin to experience dropped packets while the auto-
negotiating side will experience collisions. Ultimately, as traffic loads approach 100%, the
link will become entirely unusable.
The ping command with flood options is a useful tool for testing commissioned links. The
command ping 192.168.0.1 500 2 can be used to issue 500 pings each separated by
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