Avaya Cajun P580, User Manual, Page: 264 / 770

8-52 User Guide for the Avaya P580 and P882 Multiservice Switches, v6.0
Chapter 8
Internal Error Detection and Recovery
Overview
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:
■
Enable a protocol that supports redundancy, such as OSPF, VRRP,
or STP, on the port
■
Provide an alternate path
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.
Enabling IEDR
* Note: To enable IEDR for ports in a hunt group, you must use a
different command that enables the feature globally for all
ports in all hunt groups on the switch. For information on this
command, see “
Enabling IEDR for Hunt Groups .”
* Note: Do not use ISL Tagging (Trunk Mode: Multilayer) on ports that
have IEDR enabled.
IEDR is disabled by default on gigabit ports. To enable the feature:
1. Enter Global Configuration mode.
The CLI displays the
(configure)#
prompt.