4. Configuration Options
9700-A2-GB20-20 December 2002 4-17
SLV Type
Available Settings: Standard, COS1–COS 7
Default Setting:
–

If SLV Feature is enabled:

Standard
–

If SLV Feature is disabled:

COS 1
Determines the type of SLV measurements to which these other SLV options apply:
SLV Timeout Error Event Threshold
SLV Timeout Clearing Event Threshold
SLV Round Trip Latency Error Threshold
SLV Latency Clearing Event Threshold
SLV Packet Size
Standard – The options selected apply to standard FrameSaver SLV measurements,
utlizing an EDLCI for FrameSaver-to-FrameSaver communication. This option is not
available if the SLV Feature is disabed.
COS1–COS 7 – The options selected apply to this Class of Service. Different settings
may be saved for each Class of Service.
SLV Delivery Ratio
Possible Settings: Enable, Disable
Default Setting: Disable
Determines whether communication of Frame and Data Delivery Ratios (FDR/DDR)
between FrameSaver SLV devices is enabled. This capability requires FrameSaver SLV
units at both ends of the PVC, running software version 1.2 or higher.
Display Conditions
– This option appears only if SLV Type is Standard.
Enable – An extra byte for FDR/DDR statistics collection is included with each frame,
which is used at the receiving end to determine the amount of data dropped by the
network.
Disable – Extra byte is not included.
DLCI Down on SLV Timeout
Available Settings: Enable, Disable
Default Setting: Disable
Determines whether a DLCI is declared Inactive after the configured threshold for SLV
Timeout has been exceeded.
Display Conditions
– This option appears only if SLV Type is Standard.
NOTE: This option does not apply to multiplexed DLCIs connected to a far-end unit
with hardware bypass capability.
Enable – After the configured threshold for missed SLV packets has been exceeded, the
DLCI’s status is changed to Inactive.
Disable – An SLV Timeout Error Event does not affect DLCI status.
Table 4-5. Service Level Verification Options (2 of 3)