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Troubleshooting Port Failures on a Lenovo Network Switch

Planning / Implementation (withdrawn product)

30 Jul 2015
Form Number
PDF size
10 pages, 160 KB


Why is my Lenovo Networking switch port down? Why is it in an errdisable state? There are several possible reasons and we describe the most likely reasons and ways you can fix the problem and restore your switch to full operation.

This paper reviews various conditions that can result in a port on a Lenovo Networking switch not passing traffic. Ports that are in states, such as suspended or errdisabled, are included in this paper; the conditions do not pass traffic and can be considered .

This paper is intended as a reference for networking engineers. It includes a description of several features of Lenovo switch firmware and the scenarios in which their use can result in a port being disabled. Information about diagnosing port-down conditions also is included.

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