Nortel Networks 214393-A describes the RMON tab fields, Configuring and graphing ports, Field

Models: 214393-A

1 164
Download 164 pages 33.79 Kb
Page 95
Image 95
Table 36 describes the RMON tab fields.

Chapter 3 Configuring and graphing ports 95

Table 36 describes the RMON tab fields.

Table 36 RMON tab fields

Field

Description

 

 

Octets

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

 

received on the network (excluding framing bits but including

 

FCS octets). You can use this object as a reasonable estimate of

 

Ethernet utilization. For greater precision, sample the etherStatsPkts

 

and etherStatsOctets objects before and after a common interval.

 

 

Pkts

The total number of packets (including bad packets, broadcast

 

packets, and multicast packets) received.

 

 

BroadcastPkts

The total number of good packets received that were directed to the

 

broadcast address. Note that this does not include multicast packets.

 

 

MulticastPkts

The total number of good packets received that were directed to a

 

multicast address. Note that this number does not include packets

 

directed to the broadcast address.

 

 

CRCAlignErrors

The total number of packets received that had a length (excluding

 

framing bits, but including FCS octets) of between 64 and 1518 octets,

 

inclusive, but 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).

 

 

UndersizePkts

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

 

long (excluding framing bits but including FCS octets) and were

 

otherwise well formed.

 

 

OversizePkts

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 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 entirely 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.

 

 

Reference for the BayStack 380-24F Gigabit Switch Management Software

Page 95
Image 95
Nortel Networks 214393-A manual describes the RMON tab fields, Configuring and graphing ports, Field, Description