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The Internal Error Detection and Recovery (IEDR) feature shuts down a port if its rate of internal errors exceeds the threshold setting. Currently you can enable this feature only by using the CLI and only for ports on 50-series and 80-series Gigabit Ethernet modules. By default IEDR is disabled.
Note: The 10-Gigabit module does not support IEDR.
This feature is designed to serve as mechanism for detecting and isolating hardware failures.
If IEDR shuts down a port, the switch will forward traffic through a redundant port if you:
If you do not enable a protocol that supports redundancy on the port and provide an alternate path, you may lose traffic if the port shuts down.
If you replace a module that has a port which has been disabled by IEDR, the switch will load the startup configuration for the module and reenable the port. However, if you save the running configuration to the startup configuration while a port is shut down, you will have to manually reenable the port after you replace the module or reset the switch.
This section contains the following information and procedures:
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