CANOGA PERKINS 9145E NID Software Version 3.0 User Manual
Page 151
Service OAM
9145E NID Software User’s Manual
Maintenance End Points
137
Figure 11-21. Maintenance End Point Attributes screen (Y.1731)
11.6.5 View the Continuity Check Database for a Maintenance End Point
A MEP periodically transmits a continuity check message (CCM) to ensure connectivity over the
MA to which it belongs. No reply is sent in response to receiving a CCM. The CCM provides a
means to detect connectivity failures in an MA. A connectivity failure occurs if a MEP:
•
is unable to receive for more than 3.5 transmission intervals a CCM from a peer MEP in
its MA, indicating either a MEP failure or a network failure. This defect is identified as
RemCCM.
•
receives a CCM with an incorrect transmission interval or an incorrect MEP ID, indicating
a configuration error. This defect is identified as ErrCCM.
•
receives an AIS message indicating a defect at the underlying level. This defect is identi-
fied as AIS.
•
receives a CCM with an incorrect MEP ID or MAID, indicating a configuration error or a
cross connect error. This defect is identified as XCON.
•
receives a CCM with an MD Level lower than that of the MEP, indicating a configuration
error or a cross connect error.
•
receives a CCM containing a Port Status TLV or Interface Status TLV indicating a failed
bridge port or aggregated port on the far end. This defect is identified as MAC.
Canoga Perkins Corp. Ethernet Network Interface Device 02-JAN-2009
Model 9145E-104-0-0 V3.00 F214 05:15:27
-----------------------MAINTENANCE END POINT ATTRIBUTES-------------------------
MEP ID: 1 Direction: Up Level: 7
MEG ID: 101 Port: User MAC: 00:40:2A:01:EE:23
1) Admin status: Enabled
2) CCM Transmit status: Enabled
3) Primary VLAN ID: 900
4) Fault alarm Detect time: 2500
5) Fault alarm clear time: 10000
6) CCM/LTM Priority: 7
7) Lowest alarm priority: MacRemErrXcon A is
Fault notification state: Defect reported
Defects: Random
Next Linktrace trans. ID: 1 Next Loopback trans. ID: 2
8) AIS Transmit interval: 1 sec
9) AIS Priority bits: 1
Select [1-9], (T) for Linktrace, (L) for Loopback:
------------------------------------Messages-----------------------------------