ZyXEL Communications GS-1548 User Manual

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Chapter 19 RMON-Lite
GS-1524/GS-1548 User’s Guide
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Figure 79   RMON History Statistics: Control
The following table describes the labels in this screen. 
Table 59   RMON History Statistics: Control
LABEL
DESCRIPTION
RMON MIB 
Table:
Use this drop down list box to select the MIB table you want to view. Click Apply to 
refresh the screen to the selected MIB table view. 
Refresh
Click this to update all the fields in the RMON History Statistics: Control Index 
screen.
Sample Index
This field displays the index number of the polling sample collected on the port.
Drop Events
This field displays the total number of packets that were dropped in this polling 
sample.
Octets
This field displays the total number of octets received in this polling sample.
Packets
This field displays the total number of all good packets received in this polling 
sample.
Broadcast 
Packets
This field displays the total number of good broadcast packets received in this polling 
sample.
Multicast 
Packets
This field displays the total number of good multicast packets received in this polling 
sample.
CRCAlign 
Errors 
This field displays the number of packets (between 64 ~ 1518 octets long) dropped 
in this polling sample because they either had bad Frame Check Sequence (FCS) or 
non-integral number of octets (alignment error). 
Undersize 
Packets
This field displays the number of packets (including bad packets) received in this 
polling sample that were between 0 and 64 octets in length.
Oversize 
Packets
This field displays the number of untagged packets (including bad packets) received 
in this polling sample that were greater than 1518 octets in length.
Fragments
This field displays the number of frames dropped in this polling sample because they 
were less than 64 octets long, and contained an invalid FCS, including non-integral 
and integral lengths.
Jabbers
This field displays the number of frames dropped in this polling sample because they 
were longer than 1518 octets and contained an invalid FCS, including alignment 
errors.
Collisions
This field displays the total number of collisions that occurred in this polling sample.