Cabletron Systems SmartSTACK 10 ELS10-26, User Manual

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5-6
ELS10-26 Diagnostics and Troubleshooting
5.4 TROUBLESHOOTING
This section lists several situations that could happen while using
the ELS10-26, and suggests appropriate action. Because every
situation is potentially unique, the corrective actions suggested
here should be considered as guidelines only.
5.5 ELS10-26 DOES NOT POWER UP
If your ELS10-26 does not power up, check each one of the
following:
• Make sure the power source is operational.
• Make sure the power cord is securely connected.
If the ELS10-26 still does not power up, contact Cabletron Systems
Global Call Center. Refer to Section 1.2 for more information.
5.5.1 Connectivity Problems
• Check for LED abnormalities.
• Check port status using LCM.
• Check for loose port connections.
• Check to see if the number of carrier losses is increasing using
LCM. This indicates that the connection is suspect.
• Check to see if the number of total collisions has dramatically
increased using LCM.