Viewing Port Ethernet Errors Statistics
View port Ethernet errors statistics to manage network performance.
Procedure
- In the Device Physical View, select a port.
- In the navigation pane, expand the folders.
- Click Port.
- Click the Ethernet Errors tab.
Ethernet Errors Field Descriptions
The following table describes parameters on the Ethernet Errors tab.
|
Name |
Description |
|---|---|
|
AlignmentErrors |
Specifies acount of frames received on a particular interface that are not an integral number of octets in length and do not pass the FCS check. The count represented by an instance of this object increments when the alignmentError status is returned by the MAC service to the LLC (or other MAC user). Received frames for which multiple error conditions obtain are, according to the conventions of IEEE 802.3 Layer Management, counted exclusively according to the error status presented to the LLC. |
|
FCSErrors |
Specifies a count of frames received on a particular interface that are an integral number of octets in length but do not pass the FCS check. The count represented by an instance of this object increments when the frameCheckError status is returned by the MAC service to the LLC (or other MAC user). Received frames for which multiple error conditions obtained are, according to the conventions of IEEE 802.3 Layer Management, counted exclusively according to the error status presented to the LLC. |
|
InternalMacTransmitErrors |
Specifies a count of frames for which transmission on a particular interface fails due to an internal MAC sublayer transmit error. A frame is only counted by an instance of this object if it is not counted by the corresponding instance of either the LateCollisions object, the ExcessiveCollisions object, or the CarrierSenseErrors object. The precise meaning of the count represented by an instance of this object is implementation-specific. In particular, an instance of this object can represent a count of transmission errors on a particular interface that are not otherwise counted. |
|
InternalMacReceiveErrors |
Specifies a count of frames for which reception on a particular interface fails due to an internal MAC sublayer receive error. A frame is only counted by an instance of this object if it is not counted by the corresponding instance of either the FrameTooLongs object, the AlignmentErrors object, or the FCSErrors object. The precise meaning of the count represented by an instance of this object is implementation-specific. In particular, an instance of this object can represent a count of receive errors on a particular interface that are not otherwise counted. |
|
CarrierSenseErrors |
Specifies the number of times that the carrier sense condition is lost or not asserted when the switch attempts to transmit a frame on a particular interface. The count represented by an instance of this object increments at most once for each transmission attempt, even if the carrier sense condition fluctuates during a transmission attempt. |
|
FrameTooLongs |
Specifies a count of frames received on a particular interface that exceed the maximum permitted frame size. The count represented by an instance of this object increments when the frameTooLong status is returned by the MAC service to the LLC (or other MAC user). Received frames for which multiple error conditions obtained are, according to the conventions of IEEE 802.3 Layer Management, counted exclusively according to the error status presented to the LLC. |
|
SQETestErrors |
Specifies a count of times that the SQE TEST ERROR message is generated by the PLS sublayer for a particular interface. The SQE TEST ERROR message is defined in section 7.2.2.2.4 of ANSI/IEEE 802.3-1985 and its generation described in section 7.2.4.6 of the same document. |
|
DeferredTransmissions |
Specifies a count of frames for which the first transmission attempt on a particular interface is delayed because the medium is busy. The count represented by an instance of this object does not include frames involved in collisions. |
|
SingleCollisionFrames |
Specifies a count of successfully transmitted frames on a particular interface for which transmission is inhibited by exactly one collision. A frame that is counted by an instance of this object is also counted by the corresponding instance of either the UcastPkts, MulticastPkts, or BroadcastPkts objects and is not counted by the corresponding instance of the MultipleCollisionFrames object. |
|
MultipleCollisionFrames |
Specifies a count of successfully transmitted frames on a particular interface for which transmission is inhibited by more than one collision. A frame that is counted by an instance of this object is also counted by the corresponding instance of either the UcastPkts, MulticastPkts, or BroadcastPkts objects and is not counted by the corresponding instance of the SingleCollisionFrames object. |
|
LateCollisions |
Specifies the number of times that a collision is detected on a particular interface later than 512 bit-times into the transmission of a packet; 512 corresponds to 51.2 microseconds on a 10 Mb/s system. A (late) collision included in a count represented by an instance of this object is also considered as a (generic) collision for purposes of other collision-related statistics. |
|
ExcessiveCollisions |
Specifies a count of frames for which transmission on a particular interface fails due to excessive collisions. |
|
FrameTooShorts |
Specifies the number of frames, encountered on this interface, that are too short. |
|
LinkFailures |
Specifies the number of link failures encountered on this interface. |
|
PacketErrors |
Specifies the number of packet errors encountered on this interface. |
|
CarrierErrors |
Specifies the number of carrier errors encountered on this interface. |
|
LinkInactiveErrors |
Specifies the number of link inactive errors encountered on this interface. |