Справочное Руководство для 3com S7906E

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Use the undo oam errored-frame period command to restore the default. 
By default, the errored frame detection interval is one second. 
An error frame event occurs when a errored frame detection interval expires and the number of the 
frame errors occurred on an Ethernet port is larger than (or equal to) the errored frame event triggering 
threshold. 
The errored frame detection interval applies to all the Ethernet ports on which OAM connections are 
established. 
Related commands: oam  errored-frame threshold,  display oam link-event,  display oam 
configuration
Examples 
# Set the errored frame detection interval to 10 seconds.  
<Sysname> system-view 
[Sysname] oam errored-frame period 10 
oam errored-frame threshold 
Syntax 
oam errored-frame threshold threshold-value 
undo oam errored-frame threshold  
View 
System view 
Default Level 
2: System level 
Parameters 
threshold-value: Errored frame event triggering threshold, ranging from 0 to 4294967295. 
Description 
Use the oam errored-frame threshold command to set the errored frame event triggering threshold. 
Use the undo oam errored-frame threshold command to restore the default. 
By default, the errored frame event triggering threshold is 1. 
An errored frame event occurs when a errored frame detection interval expires and the number of the 
frame errors occurred on an Ethernet port is larger than (or equal to) the errored frame event triggering 
threshold. 
The errored frame event triggering threshold configured applies to all the Ethernet ports on which 
Ethernet OAM connections are established. 
Related commands: oam  errored-frame period,  display oam link-event,  display oam 
configuration
Examples 
# Set the errored frame event triggering threshold to 100.  
<Sysname> system-view