Avaya P580 - Manual (Page 224)

5-44 Avaya P550R, P580, P880, and P882 Multiservice Switch User Guide, v5.3.1
Chapter 5
If no message displays, the port information was invalid. To verify
that NEDR is enabled on a port, enter the following CLI command:
# show port network-error-
detection
If the port is not listed as enabled for NEDR, reenable NEDR on the
same port or ports again.
* Note: There is no Configuration Event for enabling or
disabling NEDR in the Event Log. However, you can find
out which ports have NEDR enabled using the following
CLI command:
>show port network-error-detection
Internal Error Detection and Recovery
Overview
Version 5.3.1 contains the Internal Error Detection and Recovery
(IEDR) feature. This 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.
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.