Nortel 8100 用户指南

314723-D Rev 01

 

To graph RMON History statistics for a single port or multiple ports:

If you haven’t already done so, enable RMON by choosing RMON > Options 
from the Device Manager menu bar.

Right click on the port you want to graph.

Select Enable Rmon History.

From the Device Manager menu bar, choose Graph > Port.

The graphPort dialog box opens with the Interface tab displayed.

Click the RMON History tab.

The RMON History tab opens (

).

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 more than 1518 octets long 

(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 long 

(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.

Cumulative

The total count since the statistics tab was first opened. The elapsed time for the 
cumulative counter is displayed at the bottom of the graph dialog box.

Average

The cumulative count divided by the cumulative elapsed time.

Minimum

The minimum average for the counter for a given polling interval over the 
cumulative elapsed time.

Maximum

The maximum average for the counter for a given polling interval over the 
cumulative elapsed time.

Last value

The average for the counter over the last polling interval.

RMON tab fields (continued)