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Page 21 / 137 Scroll up to view Page 16 - 20
4.2 Statistics
Selection of the Statistics screen provides statistics for the Network Interface of LAN,
WAN, ATM, ADSL and VDSL. All statistics screens are updated every 15 seconds.
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4.2.1
LAN Statistics
The Network Statistics screen shows the interface statistics for the ATM AAL5
interface, and Ethernet interfaces. (The Network Statistics screen shows the
interface statistics for the LAN interface. This provides byte transfer, packet transfer,
Error and Drop statistics for the LAN interface.)
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4.2.2
WAN Statistics
Service
Shows the service type
VPI/VCI
Shows the values of the ATM VPI/VCI
Protocol
Shows the connection type, such as PPPoE,
PPPoA, etc.
Interface
Shows connection interfaces
Received/Transmitted
-
Bytes
-
Pkts
-
Errs
-
Drops
Rx/TX (receive/transmit) packet in Bytes
Rx/TX (receive/transmit) packets
Rx/TX (receive/transmit) the errored packets
Rx/TX (receive/transmit) dropped packets
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4.2.3
ATM statistics
The following figure shows the ATM statistics screen.
ATM Interface Statistics
Field
Description
In Octets
Number of received octets over the interface
Out Octets
Number of transmitted octets over the interface
In Errors
Number of cells dropped due to uncorrectable HEC errors
In Unknown
Number of received cells discarded during cell header validation,
including cells with unrecognized VPI/VCI values, and cells with
invalid cell header patterns. If cells with undefined PTI values
are discarded, they are also counted here.
In Hec Errors
Number of cells received with an ATM Cell Header HEC error
In Invalid Vpi Vci
Errors
Number of cells received with an unregistered VCC address.
In Port Not
Enabled Errors
Number of cells received on a port that has not been enabled.
In PTI Errors
Number of cells received with an ATM header Payload Type
Indicator (PTI) error
In Idle Cells
Number of idle cells received
In Circuit Type
Errors
Number of cells received with an illegal circuit type
In Oam RM CRC
Errors
Number of OAM and RM cells received with CRC errors
In GFC Errors
Number of cells received with a non-zero GFC.
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ATM AAL5 Layer Statistics over ADSL interface
Field
Description
In Octets
Number of received AAL5/AAL0 CPCS PDU octets
Out Octets
Number of received AAL5/AAL0 CPCS PDUs octets transmitted
In Ucst Pkts
Number of received AAL5/AAL0 CPCS PDUs passed to a
higher-layer
Out Ucast Pkts
Number of received AAL5/AAL0 CPCS PDUs received from a
higher layer for transmission
In Errors
Number of received AAL5/AAL0 CPCS PDUs received in error.
The types of errors counted include CRC-32 errors.
Out Errors
Number of received AAL5/AAL0 CPCS PDUs that could be not
transmitted due to errors.
In Discards
Number of received AAL5/AAL0 CPCS PDUs discarded due to
an input buffer overflow condition.
Out Discards
This field is not currently used
ATM AAL5 Layer Statistics for each VCC over ADSL interface
Field
Descriptions
CRC Errors
Number of PDUs received with CRC-32 errors
SAR TimeOuts
Number of partially re-assembled PDUs which were discarded
because they were not fully re-assembled within the required
period of time. If the re-assembly time is not supported
then, this object contains a zero value.
Over Sized SDUs
Number of PDUs discarded because the corresponding SDU
was too large
Short Packets Errors Number of PDUs discarded because the PDU length was less
than the size of the AAL5 trailer
Length Errors
Number of PDUs discarded because the PDU length did not
match the length in the AAL5 trailer
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