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Table 12 Port Statistics Summary Page - Field Description (continued)

Field

Description

 

 

Symbol Errors

For an interface operating at 100 Mb/s, the number of

 

times there was an invalid data symbol when a valid

 

carrier was present. For an interface operating in

 

half-duplex mode at 1000 Mb/s, the number of times

 

the receiving media is non-idle (a carrier event) for a

 

period of time equal to or greater than slotTime, and

 

during which there was at least one occurrence of an

 

event that causes the PHY to indicate 'Data reception

 

error' or 'carrier extend error' on the GMII. For an

 

interface operating in full-duplex mode at 1000 Mb/s,

 

the number of times the receiving media is non-idle (a

 

carrier event) for a period of time equal to or greater

 

than minFrameSize, and during which there was at least

 

one occurrence of an event that causes the PHY to

 

indicate 'Data reception error' on the GMII.

Drop Events

The total number of events in which packets were

 

dropped due to lack of resources.

Octets

The total number of octets received on the interface,

 

including framing characters.

Packets

The number of packets, delivered by this sub-layer to a

 

higher (sub-)layer, which were not addressed to a

 

multicast or broadcast address at this sub-layer.

Broadcast PKTS

The number of packets, delivered by this sub-layer to a

 

higher (sub-)layer, which were addressed to a broadcast

 

address at this sub-layer.

Multicast PKTS

The total number of packets that higher-level protocols

 

requested be transmitted, and which were addressed to

 

a multicast address at this sub-layer, including those that

 

were discarded or not sent.

Undersize PKTS

The total number of frames received that were less than

 

64 octets long (excluding framing bits, but including FCS

 

octets) and were otherwise well formed.

Oversize PKTS

The total number of packets received that were longer

 

than 1518 octets (excluding framing bits, but including

 

FCS octets) and were otherwise well formed.

Fragments

The total number of frames received that were less than

 

64 octets in length (excluding framing bits, but including

 

FCS octets) and had either an FCS or alignment error.

Jabbers

The total number of frames received that were longer

 

than 1518 octets (excluding framing bits, but including

 

FCS octets), and had either an FCS or alignment error.

CRC Align Errors

The number of CRC/alignment errors (FCS or alignment

 

errors).

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