Panasonic 470 - page 112

112 Chapter 6 Conﬁguring RMON using Device Manager

Field Description

Fragments 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 Frame Check Sequence (FCS)

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

a nonintegral number of octets (Alignment Error). It is normal for

etherStatsFragments to increment because it counts both runts

(which are normal occurrences due to collisions) and noise hits.

Collisions The best estimate of the total number of collisions on this

Ethernet segment.

Jabbers The total number of packets received that were longer than

1518 octets (excluding framing bits, but including FCS octets),

and had either a bad Frame Check Sequence (FCS) with an

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

non-integral number of octets (Alignment Error). Jabber is

defined as the condition where any packet exceeds 20 ms. The

allowed range to detect jabber is between 20 ms and 150 ms.

1..64 The total number of packets (including bad packets) received

that were between 1 and 64 octets in length (excluding framing

bits but including FCS octets).

65..127 The total number of packets (including bad packets) received

that were between 65 and 127 octets in length (excluding