NS 3000/iX IEEE 802.5 Link Statistics

LINKSTATE Parameter Fields

Figure A-8 “LINKSTATE Command for IEEE 802.5 Link ” provides an example of the data that is displayed when you issue the LINKCONTROL linkname;STATUS=LINKSTATE command:

Figure A-8 LINKSTATE Command for IEEE 802.5 Link

Linkname. The Linkname field specifies the name of the link.

Linktype. The Linktype field specifies the type of link, such as LAP-B or IEEE 802.5, that is being monitored.

Linkstate. The Linkstate field specifies the current state of the link. The possible link states are as follows:

CONFIGURATION Parameter Fields

The CONFIGURATION parameter for IEEE 802.5 links displays several fields in addition to the LINKSTATE parameter field. Figure A-9 “IEEE 802.5 CONFIGURATION Parameter Output ” provides an example of the data that is displayed when you issue the LINKCONTROL linkname;STATUS=CONFIGURATION command:

Figure A-9 IEEE 802.5 CONFIGURATION Parameter Output

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

Data Rate. The data rate that the card is configured to operate at. This is set to either 4 or 16 Mbps by a jumper on the card.

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 Token Ring card.

Functional Address Mask. Bits set in this 4 octet field indicate functional addresses to which the Token Ring card may respond.

STATISTICS Parameter Fields

The STATISTICS parameter for IEEE 802.5 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-10 “IEEE 802.5 STATISTICS Parameter Fields ” provides an example of the data that is displayed when you issue the LINKCONTROL linkname;STATUS=STATISTICS command:

Figure A-10 IEEE 802.5 STATISTICS Parameter Fields

This command displays statistics about data transmitted across the link. All field values are summations. Over time, the values in these fields reach their maximum possible value. When this occurs, these fields can only be reset manually.

Transmits no error. The Transmits no error field specifies the number of frames that were successfully transmitted onto the medium. The maximum value of this 32-bit field is 4294967295.

Receives no error. This field specifies the number of frames that were successfully received over the medium. The maximum value of this 32-bit field is 4294967295.

Transmit byte count. This field specifies the transmit byte count.

Receive byte count. This field specifies the receive byte count.

Transmit errors. The Transmit errors field specifies the number of transmission errors sent across the link. The value in this field specifies the number of frames which, due to errors on the link, were never transmitted.

Receive errors. The Receive errors field specifies the number of transmission errors that were received from the link. The value in this field specifies the number of frames which were received, but were corrupted due to errors on the link. This value includes all frames which were discarded because of the setting of the current receive filter.