NS 3000/iX FDDI Link Statistics

LINKSTATE Parameter Fields

Figure A-11 “LINKSTATE Command for FDDI Link ” provides an example of the data that is displayed when you issue the LINKCONTROL linkname;STATUS=LINKSTATE command:

Figure A-11 LINKSTATE Command for FDDI Link

CONFIGURATION Parameter Fields

The CONFIGURATION parameter for FDDI links displays several fields in addition to the LINKSTATE parameter field. Figure A-12 “FDDI CONFIGURATION Parameter Output ” provides an example of the data that is displayed when you issue the LINKCONTROL linkname;STATUS=CONFIGURATION command:

Figure A-12 FDDI CONFIGURATION Parameter Output

Physical Path. The Physical Path field displays the current physical path for the FDDI card as specified in the NMMGR configuration file.

Current Station Address. The Current Station Address field is a display of the six (6) byte address to which the node is configured to respond. This address is used whenever frames are sent to the network media. The default station address is used unless it is overridden in the NMMGR link configuration screen. If this field is changed, then the station address of this node is changed. Make sure that you note this new address in the system manager log.

Default Station Address. The Default Station Address field is the default value for the Current Station Address described above. The default station address is determined by the specific FDDI card.

Current Multicast Address List. This is a list of all multicast addresses that have been configured for this link. These multicast addresses are those to which this node will now respond.

STATISTICS Parameter Fields

The STATISTICS parameter for FDDI links displays many fields in addition to the LINKSTATE parameter fields. The CONFIGURATION parameter fields are not displayed when this parameter is used. Figure A-13 “FDDI STATISTICS Parameter Fields ” provides an example of the data that is displayed when you issue the LINKCONTROL linkname;STATUS=STATISTICS command:

Figure A-13 FDDI STATISTICS Parameter Fields

This command displays statistics about the data transmitted across the link. All field values are summations.

Transmits no error. The number of frames that were successfully transmitted by this station. This count excludes all MAC frames.

Receives no error. The number of frames addressed to and successfully received by this station.

SMT uni xmits. The number of unicast frames transmitted by the SMT module on this station (reference: FDDI Station Management Standards document)

SMT uni rec. The number of unicast frames received by the SMT module on this station (reference: FDDI Station Management Standards document)

SMT non-uni xmits. The number of non-unicast (multicast and broadcast) frames transmitted by the SMT module on this station (reference: FDDI Station Management Standards document)

SMT non-uni rec. The number of non-unicast (multicast and broadcast) frames received by the SMT module on this station (reference: FDDI Station Management Standards document)

SMT xmit bytes. The number of bytes of data transmitted by the SMT module on this station.

SMT rec bytes. The number of bytes of data received by the SMT module on this station.

Transmit errors. The number of frames aborted or not transmitted by this station.

SMT rec errors. The number of frames with errors received by the SMT module on this station.

Receive errors. The number of all error frames that were detected by this station and no previous station.

Receives lost. The number of frames received that had an error.

Receives not copied. The number of frames addressed to this station but not copied into a receive buffer because there was no room for them.

Receives discarded. The number of frames received by this station that were discarded due to errors, invalid addresses, or lack of resources.

ALL Parameter Fields

The ALL parameter for FDDI links displays a combination of all fields presented by the LINKSTATE, CONFIGURATION, and STATISTICS commands. Please reference the previous sections for descriptions of the various fields.

DIAGNOSTIC Parameter Fields

The DIAGNOSTIC parameter for FDDI links displays all fields presented by the ALL parameter plus several additional fields that might be useful for HP representatives trying to debug FDDI link related problems. Brief descriptions will be given here; however, please note that some descriptions will be meaningful only to HP factory representatives. Figure A-14 “FDDI DIAGNOSTICS Parameter Fields ” provides an example of the additional fields displayed by this command.

Figure A-14 FDDI DIAGNOSTICS Parameter Fields

Writes completed. The number of data packets successfully sent from the driver to the FDDI card. The maximum value is two billion (2^31).

Reads completed. The number of packets received from the FDDI card by the driver. The maximum value is two billion (2^31).

Write bytes. The total number of bytes in all packets transmitted by the driver. The maximum value is one quadrillion (10^15).

Read bytes. The total number of bytes in all packets received by the driver. The maximum value is one quadrillion (10^15).

Unicast writes. The number of unicast packets transmitted by the driver.

Unicast reads. The number of unicast packets received by the driver.

Multicast writes. The number of multicast packets transmitted by the driver.

Multicast reads. The number of multicast packets received by the driver.

Broadcast writes. The number of broadcast packets transmitted by the driver.

Broadcast reads. The number of broadcast packets received by the driver.

Writes aborted. The number of times the transmit abort bit was set in the IO_RX_STATUS register at the completion of a packet transmission.

Reads aborted. The number of times the status length field in the read buffer trailer indicated that the received buffer is not valid.

Outbound high water. The maximum number of outbound packets queued within the driver awaiting transmission.

Non-routable reads. The number of inbound packets that did not have a valid destination SAP address.

Num of heartbeats. The number of heartbeat requests passed between the driver and the card. Also the number of seconds since the driver was configured (one heartbeat per second).

Subset buffer reqs. The number of times the driver has made a subset allocation buffer manager request.

Number of users. The number of network transports that have configured with the driver.

Num of subset bufs. The total number of buffers received from all the subset allocation requests made during the life of the driver. Dividing this number by the Subset buffer reqs value yields the average number of buffers returned per request.

Num of power fails. The number of times that a system powerfail has been detected during the life of the driver.

Queued buffer reqs. The number of times the driver has made a queued buffer manager request.

Ring up time. The number of seconds the FDDI ring has been up since the driver was started. Subtracting this number from the Num of heartbeats value will provide the number of seconds that the ring has been down. Note the ring being down does not by itself indicate a problem with this node. The ring will not be up unless the FDDI concentrator and other nodes are configured and active.

Read buffs in pool. The number of buffers in the inbound buffer pool.

Ring drops. The number of times the ring down signal has been received during the life of the driver.

Read buffs avail. The number of buffers in the inbound buffer pool that are currently queued within the driver.

Loquix reinits. The number of times the Loquix chip has been reinitialized.

Read buffer size. The size in bytes of the buffers in the inbound buffer pool.

SMT events. The number of SMT events received by the driver.

Flag Status

The status of several flags are printed here. If a flag's status is not reported here then that flag is NOT set. The meaning each flag is briefly described here.

Io_tx. The IO_TX_STATUS register has been read since the last card interrupt.

Io_cmd. The IO_CMD_STATUS register has been read since the last card interrupt.

Lan_in_active. An inbound DMA buffer has been posted to the card.

Lan_out_active. An outbound DMA is currently active.

Ctrl_out_active. An outbound control operation is currently active.

Configured. The FDDI card has been successfully configured.

Trace_on. Tracing has been enabled for this FDDI link.

Reset_on. The FDDI card is currently being reset.

Pfail_on. The FDDI card is currently recovering from a powerfail.

Bmgr_queued_aloc_on. A buffer manager queued allocation request is pending.

Config_on. The FDDI card is currently being configured.

Post_read_pending. The driver is temporarily out of inbound buffers to post to the card.

Ring_op. The FDDI card is signaling that the FDDI ring is operational.

Ctrl_response_pending. The driver has a control response pending on the card.

Free_space_pending. A free space request is pending against the card.

Bad_card_on. A problem with the FDDI card has been detected.

Do_bind_on. The FDDI driver is being started and initialized.

Download_on. The FDDI card firmware is being downloaded to the card.

Statistics_on. A statistics request is pending against the card.

Reserved 1: Reserved for future use.

Reserved 2: Reserved for future use.

Reserved 3: Reserved for future use.

Reserved 4: Reserved for future use.