Port Statistic

Description

 

 

EtherStatsFragments

The total number of packets received that were less than 64 octets in

 

length (excluding framing bits, but including FCS octets) and had either a

 

bad FCS with an integral number of octets (FCS Error) or a bad FCS with

 

a non-integral number of octets (Alignment Error). It is normal for

 

StatsFragments to increment because both runts, which are normal

 

occurrences caused by collisions, and noise hits are counted.

 

 

EtherStatsPkts64Octets

The total number of packets (including bad packets) received that were 64

 

octets in length (excluding framing bits, but including FCS octets).

EtherStatsPkts65to127Octets

The total number of packets (including bad packets) received that were

 

between 65 and 127 octets in length inclusive (excluding framing bits, but

 

including FCS octets)

 

 

EtherStatsPkts128to255Octets

The total number of packets (including bad packets) received that were

 

between 128 and 255 octets in length inclusive (excluding framing bits,

 

but including FCS octets)

 

 

EtherStatsPkts256to511Octets

The total number of packets (including bad packets) received that were

 

between 256 and 511 octets in length inclusive (excluding framing bits,

 

but including FCS octets)

 

 

EtherStatsPkts512to1023Octets

The total number of packets (including bad packets) received that were

 

between 512 and 1023 octets in length inclusive (excluding framing bits,

 

but including FCS octets)

 

 

EtherStatsPkts1024to1518Octets

The total number of packets (including bad packets) received that were

 

between 1024 and 1518 octets in length inclusive (excluding framing

 

bits, but including FCS octets)

 

 

EtherStatsOversizePkts

The total number of packets received that were longer than 1518 octets

 

(excluding framing bits, but including FCS octets) and were otherwise

 

well-formed

 

 

EtherStatsJabbers

The total number of packets received that were longer than 1518 octets

 

(excluding framing bits, but including FCS octets), and had either a bad

 

FCS with an integral number of octets (FCS Error) or a bad FCS with a

 

non-integral number of octets (Alignment Error). This definition of jabber is

 

different than the definition in IEEE-802.3 section 8.2.1.5 (10BASE5) and

 

section 10.3.1.4 (10BASE2). These documents define jabber as the

 

condition where any packet exceeds 20 ms. The allowed range to detect

 

jabber is between 20 ms and 150 ms.

 

 

EtherStatsOctets*

The total number of octets of data (including those in bad packets)

 

received on the FCS octets). This object can be used as a reasonable

 

estimate of Ethernet utilization. If greater precision is required, the

 

StatsPkts and StatsOctets objects should be sampled before and after a

 

common interval. The differences in the sampled values are Pkts and

 

Octets, respectively, and the number of seconds in the interval is Interval.

 

These values are used to calculate the Utilization as follows: Utilization =

 

[(Pkts * (9.6 + 6.4) + (Octets * .8)) / (Interval * 10,000)]. The result of this

 

equation is the value Utilization which is the percent utilization of the

 

Ethernet segment on a scale of 0 to 100 percent.

 

 

EtherStatsPkts*

The total number of packets (including bad packets, broadcast packets,

 

and multicast packets) received

 

 

Virtual Connect modules 252