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MTT-14B e_Manual D07-00-083P RevA00
2.2.5 Advanced Features
This menu screen contains the following optional features:
• ATM FEATURES
• IP FEATURES
2.2.5.1 ATM Features
This menu screen contains:
• VCC SCAN
• OAM CELL GENERATION
• OAM CELL STATISTICS
2.2.5.1.1 VCC Scan
This feature can scan up to 4
VCCs. ATM/IP traffic must be
transmitted from the network
end while in VCC Scan. For
each detected VCC, the test set
displays the VPI (3 digits), VCI (5
digits), PTI (3 digits), and CLP (3
digits). A scanning bar is
displayed when scanning. When
full it resets and starts again.
This feature is used to verify what PVC is active at the customer
location. Very often VCCs are directed toward the wrong desti-
nation and they create overflow of the customer line. Also, the
assigned VP/VC value may not be known.
The following is reported:
ST: Start Time indicates when the scan was started.
ET: Elapsed time indicates how long the scan has lasted.
#: Number of the VCC
VPI: Virtual Path Identifier address number containing one or
more VCIs. In UNI, the VPI is 8 bits. In NNI, the VPI is 12 bits.
VCI: Virtual Channel Identifier address number which facilitates
the physical cell transmission within the switch fabric path. The
VCI is 16 bits.
UNI/NNI VPI and VCI values are given in the next two tables:
08:39:57
>LINK UP
2W STU-R<
VCC SCAN
ST: 08:29:57
ET:
00:10:00
#
VPI
VCI
PTI
CLP
1
255
65535
111
1
SCANNING
PRINT
STOP
Figure 16 VCC Scan Screen
Page 26 of 101
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