Cisco WS-C6506 Software Manual page 601

Chapter 20 Checking Status and Connectivity
The link errors that are monitored are based on three counters: Inerrors, RXCRC (CRCAlignErrors), and
Note
TXCRC. If the errdisable timer for the link is enabled (using the set errdisable-timeout enable
command), the errdisabled port is automatically reenabled after the timeout interval expires (the timeout
interval is specified using the set errdisable-timeout interval {interval} command). For more
information on these commands, see the
section on page
The set errordetection link-errors global command allows you to specify EtherChannel/link error
handling as follows:
• set errordetection link-errors action {errordisable | port-failover}
If a port's error count reaches the configurable threshold's high value (within the specified sampling
count period), the action taken is either errordisable or port-failover. If you select errordisable, the
port goes into the errdisable state when the high threshold is reached. If you select port-failover,
the port's channel status is considered and the port goes into the errdisable state if the port is in a
channel and it is not the last operational port in the channel (the port also goes into the errdisable
state if it is a single port). The default action setting is port-failover.
set errordetection link-errors interval {timer-value}
•
The interval timer-value specified determines how often the port's error counters are read. The
default timer value specified is 30 seconds, and the allowed range is from 30 to 1800 seconds.
Note
set errordetection link-errors {inerrors | rxcrc | txcrc} {[high value] | [low value]}
•
The rxcrc and txcrc values specified determine how many link errors are allowed during the
specified interval by entering the interval timer-value command. If the low threshold is reached
(within the sampling count period specified), a syslog message is displayed. If the high threshold is
reached (within the sampling count period specified), in addition to displaying a syslog message,
the port is either errdisabled or the port failover mechanism is triggered. The high threshold range is
from 2 to 65535, and the low threshold range is from 1 to 65534. The inerrors values specified
determines the inerrors threshold. The default threshold values are as follows:
OL-8978-04
4-12.
If the EtherChannel/link error handling feature is not enabled, you can still set the interval.
If the feature is enabled, when you specify an interval, the timer restarts with the new value.
The high value for the inerrors threshold is 1001 packets.
–
The low value for the inerrors threshold is 1000 packets.
–
– The high value for the rxcrc threshold is 1001 packets.
– The low value for the rxcrc threshold is 1000 packets.
The high value for the txcrc threshold is 1001 packets.
–
The low value for the rxcrc threshold is 1000 packets.
–
"Configuring a Timeout Period for Ports in errdisable State"
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
Configuring EtherChannel/Link Error Handling
20-25