Mep (Fng Attributes) - Allied Telesis x510-28GTX Command Reference Manual

C F M
ONNECTIVITY AULT ANAGEMENT
(FNG )
MEP ATTRIBUTES

mep (FNG attributes)

Overview Use this command to configure the Fault Notification Generation (FNG) attributes
of a Local MEP.
mep {lowest-priority-defect <defect-priority>|
Syntax
fng-alarm-time <soak-time>|reset-fng-time <abate-time>}
Mode Interface Ethernet CFM MEP Configuration
Usage Maintenance Points are entities that exist within an MD/MA and can perform the
CFM/802.1ag functions such as Continuity Checks for fault management. The main
type of MP is a Maintenance End Point (MEP). This type of maintenance point sits
at the edges of a Maintenance Domain but is a member of only one MA within the
Maintenance Domain. Thus an MEP is used at the end of a VLAN segment, or it is
used at the end of a link.
A Local MEP can detect defects in connectivity of a VLAN or a local link using
Continuity Check Messages (CCM) by sending and receiving CCMs with Remote
MEP peers. Any defects detected locally can also be conveyed to Remote MEP
peers by sending a Remote Defect Indicator (RDI) to the peers within a Continuity
Check Message (CCM). If defects persist long enough, an alarm can be generated.
Use this command to configure the following attributes of a Local MEP:
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C613-50170-01 Rev B
C
OMMANDS
Parameter
lowest-priority-defect
<defect-priority>
fng-alarm-time
<soak-time>
reset-fng-time
<abate-time>
Fault Notification Generation Lowest Alarm Priority Defect — the lowest
defect priority that can cause an alarm to be raised. This configuration
parameter specifies the lowest defect that has to occur before an alarm can
be generated. Any priority less than this will not result in an alarm
notification. Note that if a local defect is detected and its priority is not high
enough to generate an alarm, then the Local MEP will not send an RDI to its
Remote MEP peers, which is used to notify the peers of a connectivity fault.
We recommend you keep the lowest alarm priority defect set to 2.
Fault Notification Generation Alarm timers — the timers that determine
whether a defect has been present long enough to result in an alarm being
generated, or whether a defect has been abated for long enough to clear an
alarm.
Command Reference for x510 Series
AlliedWare Plus™ Operating System - Version 5.4.7-1.x
Description
The lowest level defect allowed to generate alarms.
An integer in the range 1 to 6. T he default is 2.
The time that the defects must be present before an
alarm is generated. An integer in the range of 250 to
1000 in increments of 10 ms. The default is 250 (2.5
seconds).
The time that the defect must be absent before the
alarm is cleared. An integer in the range of 250 to
1000 in increments of 10 ms. The default is 1000 (10
seconds).
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