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7. Operation and Maintenance
9700-A2-GB20-20 December 2002 7-39
VCC Performance Statistics (9783, 9788)
Access Virtual Channel Connection (VCC) statistics from the Performance
Statistics menu.
Main Menu Status Performance Statistics VCC
ATM link, Net1-ATM, must be enabled and have at least one VCC for these
statistics to appear.
Select a VPI,VCI. Format: VPI,VCI (Net
n
-FR
n
, DLCI)
VPI: 0–15,
VCI: 32–255
Net
n
-FR
n
: frame relay link
16–1007: DLCI number
Table 7-18. VCC Performance Statistics (1 of 2)
Statistic What It Indicates
VCC (Virtual Channel Connection)
Tx Cells Number of cells transmitted on the link for the VCC.
Rx Cells Number of cells received on the link for the VCC.
Tx PDUs Number of AAL5 Common Part Convergence Sublayer (CPCS)
Protocol Data Units (PDUs) received from a higher layer for
transmission.
Rx PDUs Number of AAL5 PDUs received and passed to a higher layer.
Tx Octets Number of AAL5 octets transmitted on the VCC.
Rx Octets Number of AAL5 octets received on the VCC.
Errored Rx PDUs Number of AAL5 PDUs received that contained errors. Errors
include CRC-32 errors, SAR timeout errors, and oversized errors.
OAM (Operations, Administration, and Maintenance)
Total Tx OAM Cells Number of OAM cells transmitted on the VCC.
Total Rx OAM Cells Number of OAM cells received on the VCC.
Tx Segment
Loopback Cells
Number of OAM segment loopback cells transmitted on the VCC.
Rx Segment
Loopback Cells
Number of OAM segment loopback cells received on the VCC.
Tx EndToEnd
Loopback Cells
Number of OAM end to end cells transmitted on the VCC.
Rx EndToEnd
Loopback Cells
Number of OAM end to end cells received on the VCC.
Tx AIS Cells Number of OAM F5 Alarm Indication Signal (AIS) cells transmitted
on the VCC.