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HP Virtual Connect 8Gb 20-port Fibre Channel Module for c-Class BladeSystem User Manual

Page 247

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Virtual Connect modules 247

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