3Com S7902E, Configuration Manual

Page: 336 / 2621

5-5
To do... Use the command... Remarks
Enable the error frame seconds
summary alarm function
alarm oam
error-frame-seconds-summa
ry enable
Optional
The system generates an error
frame seconds summary alarm
when the number of error frame
seconds (in an error frame
second, at least one error
frame occurs) in a specific time
period (for example, 1 minute)
exceeds the corresponding
predefined threshold.
By default, this function is
enabled.
Configure the window size and
threshold for error frame
seconds summary alarms
alarm oam
error-frame-seconds-summa
ry
{
window window
|
threshold threshold
}
*
Optional
By default, the window size is
600 (in unit of 100 ms), and the
alarm threshold is 1 second.
Enable the error symbol period
alarm function
alarm oam
error-symbol-period enable
Optional
The system generates an error
symbol period alarm when the
number of error frames in a
specific period (that is, the
window size) exceeds the
corresponding predefined
threshold.
By default, this function is
enabled.
Configure the window size and
thresholds for error symbol
period alarms
alarm oam
error-symbol-period
{
window-high windowhigh
|
window-low windowlow
|
threshold-high thresholdhigh
|
threshold-low thresholdlow
}
*
Optional
When both the upper limit and
the lower limit of the alarm
threshold are set to 0, a lot of
alarms are generated
immediately. Since alarm
events are carried in the OAM
packets, a lot of OAM packets
are generated. In this case,
OAM packets may be lost.
The window size and threshold
values specified in this
command comprise two parts,
the significant part and the
insignificant part, both of which
are 16 bits in length.
By default, the window size is 1
second, and the alarm
threshold is 20 bytes.
Enable the local link fault alarm
function
alarm oam local-link-fault
enable
Optional
The system generates a local
link fault alarm when the
inbound direction of the local
data terminal becomes faulty.