Falcon
M-Class
| User Guide
338
Dual ended LM
This method is a proactive tool to measure the frame loss. MEPs use CCM messages to deliver the
information on number of service frames transmitted and received.
Each MEP measures Near-end loss and Far-end loss based on the counters contained in CCM
message from its peer and the local counters.
It should be noted that measurement of frame loss based on service frames applies only to point-
to-point service.
The various mentioned parameters are reported in the below displays and related tables.
Figure 4-198: Loss Measurement Displays
Table 4-174
:
Loss Measurement Parameters
Loss Measurement
Enable
Loss Measurement based on transmitting/receiving CCM or LMM/LMR PDU
can be enabled/disabled - see 'Ended'. This is only valid with one Peer
MEP configured.
CCM
is an acronym for
C
ontinuity
C
heck
M
essage. It is a OAM frame
transmitted from a MEP to it's peer MEP and used to implement CC
functionality.
Priority
The priority to be inserted as PCP bits in TAG (if any). In case of enable of
Continuity Check and Loss Measurement both implemented on SW based
CCM, 'Priority' has to be the same.
Frame
Rate
Selecting the frame rate of CCM/LMM PDU. This is the inverse of
transmission period as described in Y.1731. Selecting 300f/sec or 100f/sec
is not valid. In case of enable of Continuity Check and Loss Measurement
both implemented on SW based CCM, 'Frame Rate' has to be the same.
Cast
Selection of CCM or LMM PDU transmitted unicast or multicast. The
unicast MAC will be taken from the 'Unicast Peer MAC' configuration. In
case of enable of Continuity Check and dual ended Loss Measurement
both implemented on SW based CCM, 'Cast' has to be the same.
Ended
Single:
Single ended Loss Measurement implemented on LMM/LMR.
Dual:
Dual ended Loss Measurement implemented on SW based CCM
FLR
Interval
This is the interval in seconds where the FLR (Frame Loss Ratio ) is
calculated.
Loss Measurement State
Near End Loss
Count
The accumulated near end frame loss count - since last
'clear'.
Far End Loss Count
The accumulated far end frame loss count - since last 'clear'.
Summary of Contents for Falcon Gen-3 M-Class
Page 90: ...Falcon M Class User Guide 90...
Page 107: ...Falcon M Class User Guide 107 Figure 4 57 DSCP Translation...
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Page 187: ...Falcon M Class User Guide 187 Figure 4 99 RADIUS Statistics for Server...
Page 197: ...Falcon M Class User Guide 197 4 11 6 SyncCenter Status Figure 4 104 Sync Center Status...
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Page 358: ...Falcon M Class User Guide 358 Figure 4 216 sFlow Configuration displays...
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