Introducing the Ethernet Statistics Page

Use the Ethernet Statistics page to:

  • Display the Ethernet parameters for the processor adapter, including:

    • MAC address

    • device name

    • IP address

    • subnet mask

    • gateway (address)

  • Display Ethernet statistics for packets, including:

    • received packets

    • transmitted packets

    • collisions

  • Reset counting statistics to zero by clicking the Reset Counters button.

Accessing the Ethernet Statistics Page

Access the Ethernet Statistics page from the Diagnostics menu. In the navigation menu at the left side of the page, select Diagnostics > Ethernet > Statistics.

An example of the Ethernet Statistics page for the 171 CBU 98090 and 171 CBU 98091 processors:

Ethernet Statistics Data

The CPU Status page displays the following data:

Data Field

Description

Ethernet Parameters

MAC Address

The factory assigned media access control (MAC) address, consisting of 6 hexadecimal octet values.

Device Name

The name assigned to the processor by the application

IP Address

The Internet protocol (IP) address that has been assigned to the processor.

Subnet Mask

The subnet mask that has been assigned to the processor.

Gateway

The MAC address of the remote device, if any, that serves as a gateway to the processor on the Ethernet network

Transmit Statistics

Frames transmitted OK

The number of frames that have been successfully transmitted (since power was last cycled to the processor or the Reset Counters button was last pressed).

Collisions

The number of times a collision between 2 successfully transmitted packets was detected on the Ethernet link (since power was last cycled to the processor or the Reset Counters button was last pressed).

Excessive Collisions

The number of times the processor stopped trying to transmit a packet after 16 attempts, due to repeated collisions (since power was last cycled to the processor or the Reset Counters button was last pressed).

Carrier Sense Errors

The number of times that a transmission was interrupted because the Ethernet link was not present during an attempted transmission (since power was last cycled to the processor or the Reset Counters button was last pressed).

Internal MAC Tx Errors

The number of frames for which transmission was interrupted due to an internal MAC sublayer transmit detected error (since power was last cycled to the processor or the Reset Counters button was last pressed).

Link Speed

The speed of the Ethernet link:

  • 10Mpbs

  • 100 Mbps

Receive Statistics

Frames Received OK

The number of frames that have been successfully received (since power was last cycled to the processor or the Reset Counters button was last pressed).

Alignment Error

The number of mis-aligned packets with at least one of the following (since power was last cycled to the processor or the Reset Counters button was last pressed):

  • The number of bits in the received packet has an uneven byte count (not an integral multiple of 8).

  • The packet has a frame check sequence (FCS) detected error

CRC Errors

The number of times a cyclic redundancy check error was detected on an incoming packet (since power was last cycled to the processor or the Reset Counters button was last pressed).

FCS Errors

The number of times a frame check sequence error was detected on an incoming packet (since power was last cycled to the processor or the Reset Counters button was last pressed).

Collision Statistics

Late Collisions

The number of times a collision was detected after the slot time of the channel had elapsed since power was last cycled to the processor or the Reset Counters button was last pressed).