Network Interface Attributes

Use Network Interface attributes to monitor the rates at which bytes and packets are sent and received over a TCP/IP connection. Network Interface is a multiple-instance attribute group. You cannot mix these attributes with those of any other multiple-instance group.


Bytes Received/sec The rate that bytes are received on the interface, including framing characters. Valid values are positive integers in the range 0 to 2147483647 and can include the use of the *AVG, *MIN, *MAX, or *SUM functions. For example, to express 65,387 for the number of bytes that are received per second, enter 65387.

Bytes Sent/sec The rate that bytes are sent on the interface, including framing characters. Valid values are positive integers in the range 0 to 2147483647 and can include the use of the *AVG, *MIN, *MAX, or *SUM functions. For example, to express 47,329 for the number of bytes that are sent per second, enter 47329.

Bytes Total/sec The rate that bytes are sent and received on the interface, including framing characters. Valid values are positive integers in the range 0 to 2147483647 and can include the use of the *AVG, *MIN, *MAX, or *SUM functions. For example, to express 125,385 for the total number of bytes that are sent and received per second, enter 125385.

Current Bandwidth An estimate of the current bandwidth for the interface in bits per second (bps). For interfaces that do not vary in bandwidth, or for those where no accurate estimation can be made, this value is the nominal bandwidth. Valid values are positive integers in the range 0 to 2147483647 and can include the use of the *AVG, *MIN, *MAX, or *SUM functions. For example, to express 15,176 of the current bandwidth in bits per second, enter 15176.

Network Interface Instance The instance name of the Network Interface object (Connection Name). Valid format is a text string of up to 64 characters. For example, candle.

Output Queue Length The length of the output packet queue (in packets). If this is longer than 2, delays are being experienced and the bottleneck should be found and eliminated, if possible. Valid values are positive integers in the range 0 to 2147483647 and can include the use of the *AVG, *MIN, *MAX, or *SUM functions. For example, to express 2 for the number of packets in the output packet queue, enter 2.

Output Queue Length kPackets The length of the output packet queue in packets (in thousands). If this is longer than 2, delays are being experienced and the bottleneck should be found and eliminated, if possible. Valid values are positive integers in the range 0 to 2147483647 and can include the use of the *AVG, *MIN, *MAX, or *SUM functions. For example, to express 2 for the number of packets in the output packet queue, enter 2.

Packets Outbound Discarded The number of outbound packets that were chosen to be discarded even though no errors had been detected to prevent their being transmitted. One possible reason for discarding such a packet could be to free up buffer space. Valid values are positive integers in the range 0 to 2147483647 and can include the use of the *AVG, *MIN, *MAX, or *SUM functions. For example, to express 8 for the number of outbound packets to be discarded, enter 8.

Packets Outbound Errors The number of outbound packets that could not be transmitted because of errors. Valid values are positive integers in the range 0 to 2147483647 and can include the use of the *AVG, *MIN, *MAX, or *SUM functions. For example, to express 12 for the number of outbound packets that could not be transmitted because of errors, enter 12.

Packets Received Discarded The number of inbound packets that were chosen to be discarded even though no errors had been detected to prevent their being delivered to a higher-layer protocol.

One possible reason for discarding such a packet could be to free up buffer space. Valid values are positive integers in the range 0 to 2147483647 and can include the use of the *AVG, *MIN, *MAX, or *SUM functions. For example, to express 11 for the number of inbound packets to be discarded, enter 11.

Packets Received Errors The number of inbound packets that contained errors preventing them from being delivered to a higher-layer protocol. Valid values are positive integers in the range 0 to 2147483647 and can include the use of the *AVG, *MIN, *MAX, or *SUM functions. For example, to express 15 for the number of inbound packets that contained errors, enter 15.

Packets Received Non-Unicast/sec The rate that non-unicast, that is, subnet broadcast or subnet multicast packets, are delivered to a higher-layer protocol. Valid values are positive integers in the range 0 to 2147483647 and can include the use of the *AVG, *MIN, *MAX, or *SUM functions. For example, to express 42 for the rate that non-unicast packets are delivered to a higher-layer protocol, enter 42.

Packets Received/sec The rate that packets are received on the network interface. Valid values are positive integers in the range 0 to 2147483647 and can include the use of the *AVG, *MIN, *MAX, or *SUM functions. For example, to express 8 for the number of packets received on the network interface, enter 8.

Packets Received Unicast/sec The rate that (subnet) unicast packets are delivered to a higher-layer protocol. Valid values are positive integers in the range 0 to 2147483647 and can include the use of the *AVG, *MIN, *MAX, or *SUM functions. For example, to express 9 for the rate that unicast packets are delivered, enter 9.

Packets Received Unknown The number of packets received via the interface that were discarded because of an unknown or unsupported protocol. Valid values are positive integers in the range 0 to 2147483647 and can include the use of the *AVG, *MIN, *MAX, or *SUM functions. For example, to express 12 for the number of packets received that were discarded, enter 12.

Packets/sec The rate that packets are sent and received per second on the network interface. Valid values are positive integers in the range 0 to 2147483647 and can include the use of the *AVG, *MIN, *MAX, or *SUM functions. For example, to express 23 for the number of packets that are sent and received per second, enter 23.

Packets Sent/sec The rate that packets are sent on the network interface. Valid values are positive integers in the range 0 to 2147483647 and can include the use of the *AVG, *MIN, *MAX, or *SUM functions. For example, to express 14 for the number of packets that are sent per second, enter 14.

Packets Sent Non-Unicast/sec The rate that packets are requested to be transmitted to non-unicast, that is, subnet broadcast or subnet multicast, addresses by higher-layer protocols. The rate includes the packets that were discarded or not sent. Valid values are positive integers in the range 0 to 2147483647 and can include the use of the *AVG, *MIN, *MAX, or *SUM functions. For example, to express 8 for the number of packets to be transmitted to non-unicast addresses by higher layer protocols, enter 8.

Packets Sent Unicast/sec The rate that packets are requested to be transmitted to subnet-unicast addresses by higher-layer protocols. The rate includes the packets that were discarded or not sent. Valid values are positive integers in the range 0 to 2147483647 and can include the use of the *AVG, *MIN, *MAX, or *SUM functions. For example, to express 3 for the number of packets to be transmitted to subnet-unicast addresses, enter 3.

System Name The network name of the source of this information. Valid format is a text string of up to 64 characters.

Timestamp The date and time the Tivoli Enterprise Monitoring Server samples the data. Standard 16-character date/time format (CYYMMDDHHMMSSmmm), where:

C

Century (0 for 20th, 1 for 21st)

YY

Year

MM

Month

DD

Day

HH

Hour

MM

Minute

SS

Second

mmm

Millisecond

Use simple text strings as described above. For example, enter 0971009130500000 to express October 9, 1997, 1:05:00 pm.