Port diagnostics – Rockwell Automation 1783-BMxxx Stratix 5700 Ethernet Managed Switches User Manual User Manual

Page 208

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Rockwell Automation Publication 1783-UM004E-EN-P - June 2014

Chapter 5 Manage the Switch via the Studio 5000 Environment

Port Diagnostics

Use the Port Diagnostics dialog box to view the status of the link performance:

View octet and packet counters
View collisions on the link
View errors on the link
Reset and clear all status counters

Table 38 - Port Diagnostics Dialog Box Fields

Field

Description

Port

The port selected for configuration. The port number includes the port type (Fa for Fast Ethernet and Gi for Gigabit Ethernet) and the specific

port number.
EXAMPLE: Gi1/1 is Gigabit Ethernet port 1.

Interface Counters

These counters let you view status of octets received and sent, and packets received and sent:

Octets In—The number of octets received by the port.
Octets Out—The number of octets sent by the port.
Ucast Packets In—The number of unicast packets received by the port.
Ucast Packets Out—The number of unicast packets sent by the port.
NUcast packets In—The number of multicast packets received by the port.
NUcast packets Out—The number of multicast packets sent by the port.
Discards In—The number of inbound packets that have been discarded.
Discards Out—The number of outbound packets that have been discarded.
Errors In—The number of inbound packets that contain errors.
Errors Out—The number of outbound packets that contain errors.
Unknown Protos (Protocols) In —The number of inbound packets with unknown protocols.

Media Counters

These counters let you view the number of collisions on a link:

Single—The number of single collisions.
Multiple—The number of multiple collisions.
Late —The number of late collisions.
Excessive—The number of frames for which transmission fails due to excessive collisions.
These counters let you view errors:
Alignment—The number of frames received that are not an integral number of octets in length.
FCS (Frame Check Sequence)—The number of frames received that do not pass the FCS check.
SQE Test Errors —The number of times that the SQE TEST ERROR message is generated.
Deferred Transmissions—The count of transmissions deferred by busy network.
MAC Xmit Errors—The number of frames that failed to transmit due to an internal MAC sublayer transmit error.
MAC Recv Errors—The number of frames that failed to be received due to an internal MAC sublayer receive error.
Carrier Sense—The number of times the carrier sense condition was lost or never asserted when attempting to transmit a frame.
Frame Too Long —The number of frames received that exceed the maximum permitted frame size.

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