Reference14r1:Interfaces/ETH/Statistics

The Statistics sub-menu provides you with an overview of all sent (tx) and received (rx) data packets:

Interface

State

tbd

Irq

tbd

Instance

tbd

Sent packets

tx-good

The number of successfully sent packets

tx-unicast

The number of successfully sent unicast packets

tx-broadcast

The number of successfully sent broadcast packets.

tx-multicast

The number of successfully sent multicast packets.

tx-lostcarrier

The number of lost carrier signals. Indicates a defective medium (for example, cable).

tx-deferred

The number of deferred packets. A packet is deferred if the MAC is busy sending another packet. Deferred packets do not indicate a problem, its just that the CPU queued a transmit packet during transmission of another packet

tx-collision

The number of colliding packets (max. 16).

tx-excesscol

The number of colliding packets (if tx-collision > 16).

tx-latecol

The number of colliding packets that require too much time to be transmitted. If a collision was detected after the 512th bit of the frame being transmitted was reached, a late collision is output

Received packets

rx-good

The number of successfully received packets

rx-unicast

The number of successfully received unicast packets

rx-broadcast

The number of successfully received broadcast packets

rx-multicast

The number of successfully received multicast packets

rx-crc-err

The number of received CRC check-sum errors

rx-align-err

The number of alignment errors (incorrect driver, cable defective) when receiving data packets

rx-too-short

The number of data packets that are too short during the transmission

rx-too-long

The number of data packets that are too long during the transmission

rx-collision

The number of colliding packets (max. 16)

rx-overrun-err / rx-dropped-err

The number of buffer overrun errors when receiving data packets

rx-queue-overrun

The number of queue overrun errors when receiving data packets

rx-no-buffer

The number of no buffers when receiving data packets

rx-frame-dropped

The number of dropped frames. The reason is that the Ethernet driver has no handler for them. This could be because a non matching VLAN-tag, unsupported protocols (e.g. not IP4 IP6, ARP, RARP, PPPOED, PPPOES), etc

rx-drop

Accumulates register CSR112 of the emulated chip AM79C970. CSR112: Missed Frame Count. An increase of this value indicates the IPVA was not able to process the network frames fast enough.

ifInDiscards

Sum of rx-drop, frames dropped due to interface link not up, unsupported ethernet type, internal receive queue full, drop frames of different vlan, drop non vlan frames if vlan is configured

rx-frame-blocked

Unsupported IP protocol

Sent & Received Packets

rx-tx-64

The total number of sent and received packets of 64 Bytes

rx-tx-64-127

The total number of sent and received packets of between 64 and 127 Bytes

rx-tx-128-255

The total number of sent and received packets of between 128 and 255 Bytes

rx-tx-256-511

The total number of sent and received packets of between 256 and 511 Bytes

rx-tx-512-1023

The total number of sent and received packets of between 512 and 1023 Bytes

rx-tx-1024

The total number of sent and received packets of 1024 Bytes

Note: On IP222 IP232 and IP241 the statistics can count the activity on the LAN port, on the PC port or both (default). To select ports for the statistics use the field at "Counter source ports" and press "OK".