ZyXEL Communications P-663HN-51 Guia do Utilizador Página 43

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Chapter 4 Device Information
P-663H-51 User’s Guide
43
In Errors How many cells the ZyXEL Device dropped because of uncorrectable HEC errors.
In Unknown How many received cells the ZyXEL Device discarded during cell header validation.
This includes cells with invalid cell header patterns or unrecognized VPI/VCI values. If
the ZyXEL Device is set to discard cells with undefined PTI values, they are also
included in this count.
In Hec Errors How many cells the ZyXEL Device received with HEC errors in the ATM cell headers.
In Invalid Vpi
Vci Errors
How many cells the ZyXEL Device received with an unregistered VCC (Virtual
Channel Connection) address.
In Port Not
Enable Errors
How many cells the ZyXEL Device received on disabled ports.
In PTI Errors How many cells the ZyXEL Device received with an ATM header that had a Payload
Type Indicator (PTI).
In Idle Cells How many idle cells the ZyXEL Device received.
In Circuit Type
Errors
How many idle cells the ZyXEL Device received with illegal circuit types.
In OAM RM
CRC Errors
How many Operational, Administration and Maintenance Function 5 (OAM) and RM
(Rate Management) cells the ZyXEL Device received with a Cyclic Redundancy
Check error.
In GFC Errors How many cells the ZyXEL Device received with non-zero GFCs.
AAL5 Interface
Statistics
These are statistics for the AAL5 interface.
In Octets How many AAL5/AAL0 CPCS PDU octets the ZyXEL Device received.
Out Octets How many AAL5/AAL0 CPCS PDU octets the ZyXEL Device transmitted.
In Ucast Pkts How many received AAL5/AAL0 CPCS PDUs the ZyXEL Device passed to higher
layers.
Out Ucast Pkts How many AAL5/AAL0 CPCS PDUs the ZyXEL Device received for transmission
from higher layers.
In Errors How many AAL5/AAL0 CPCS PDUs the ZyXEL Device received that contained
errors. Including CRC-32 errors, SAR timeouts, and oversised SDUs.
Out Errors How many AAL5/AAL0 CPCS PDUs the ZyXEL Device could not transmit due to
errors.
In Discards How many AAL5/AAL0 CPCS PDUs the ZyXEL Device discarded due to input buffer
overflows.
Out Discards How many non-errored AAL5/AAL0 CPCS PDUs the ZyXEL Device discarded. (For
example, the ZyXEL Device might do this to free up buffer space.)
AAL5 VCC
Statistics
These are statistics for the ATM VCC (Virtual Channel Connection) interface.
VPI/VCI A VCC (Virtual Channel Connection) is a VPI and VCI combination. Each row in this
table represents a VCC. This field displays the Virtual Path Identifier, and Virtual
Channel Identifier of each VCC.
CRC Errors How many PDUs the ZyXEL Device received on the VCC with CRC-32 errors.
SAR Timeouts How many partially-reassembled PDUs the ZyXEL Device discarded because they
were not fully reassembled during the allotted time period. This value is zero if the re-
assembly timer is not supported.
Oversized
SDUs
How many PDUs with corresponding SDUs that were too large (so the ZyXEL Device
discarded them).
Table 7 Device Info > Statistics > ATM (continued)
LABEL DESCRIPTION
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