Using the STS16-20 Chassis View
2-14 Viewing Chassis Information
Raw Counts
The total count of network trafÞc received or transmitted on the selected interface
since device counters were last reset. Raw counts are provided for the following
parameters:
¥In Octets Ñ for octets received on the interface, including framing characters.
¥In Packets Ñ for packets (both unicast and non-unicast) received by the device
interface and delivered to a higher-layer protocol.
¥In Discards Ñ for packets received by the device interface that were discarded
even though no errors prevented them from being delivered to a higher layer
protocol (e.g., to free up buffer space in the device).
¥In Errors Ñ for packets received by the device interface containing errors that
prevented them from being delivered to a higher-layer protocol.
¥In Unknown Ñ for packets received by the device interface that were
discarded because of an unknown or unsupported protocol.
¥Out Octets Ñ for octets transmitted by the interface, including framing
characters.
¥Out Packets Ñ for packets transmitted, at the request of a higher level
protocol, by the device interface to a subnetwork address (both unicast and
non-unicast).
¥Out Discards Ñ for outbound packets that were discarded by the device
interface even though no errors were detected that would prevent them from
being transmitted. A possible reason for discard would be to free up buffer
space in the device.
¥Out Errors Ñ for outbound packets that could not be transmitted by the device
interface because they contained errors.
Load
The number of bytes processed by the selected interface during the last poll
interval in comparison to the theoretical maximum load for the selected interface
type (4 or 16 Mbps for the built-in Token Ring ports; 100 Mbps for the high-speed
Token Ring and Ethernet SSIMs; and 155 Mbps for the ATM SSIMs).
Load is further deÞned by the following parameters:
¥In Octets Ñ the number of bytes received by this interface, expressed as a
percentage of the theoretical maximum load.
¥Out Octets Ñ the number of bytes transmitted by this interface, expressed as
a percentage of the theoretical maximum load.
When you select this option, a Bar Graph Þeld will be added to the I/F Display
section; this Þeld is only available when Load is the selected base unit.