ZyXEL P-663HN-51 User Guide - Page 43
Device Info > Statistics > ATM continued
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Chapter 4 Device Information Table 7 Device Info > Statistics > ATM (continued) LABEL DESCRIPTION In Circuit How many idle cells the ZyXEL Device received with illegal circuit types. Type Errors 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). Short Packet How many PDUs that had a length shorter than the size of the AAL5 trailer Errors (so the ZyXEL Device discarded them). Length Errors How many PDUs the ZyXEL Device discarded because the length in the AAL5 trailer did not match the PDU length. Reset Statisitcs Click this button to have the ZyXEL Device clear the current ATM statistics and start collecting them again. P-663HN-51 User's Guide 43