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12-5
Counters
Expert Counters
12
Expert Counters
Expert counters count the number of Export events discovered by Surveyor’s expert 
logic. Some counters are used in the Expert Alarm editor and some display in the 
Overview Table of Expert View. See the Expert Systems chapter for more 
information on expert counters.
The following table contains an alphabetical list, with descriptions, of Surveyor’s 
expert counters.
.
Table 12-4. Alphabetical List and Descriptions of Expert Counters
Counter Type
Description
Bad Frames
The number of bad frames including CRC frames, jabber frames, 
runt frames, oversize frames, and fragment frames.
Broadcast/Multicast Storms
The number of Broadcast/Multicast Storm events. The event 
occurs when a change in the number of total Broadcast/Multicast 
packets per second exceeds a threshold.
Duplicate Network Address 
The number of duplicate network addresses over a period of time 
per segment. 
Excessive ARP
The number of Excessive ARP events. The event occurs when a 
change in the number of ARP requests per second exceeds a 
threshold. 
Excessive BOOTP
The number of Excessive BOOTP events. The event occurs when 
a change in the number of BOOTP/DHCP requests per second 
exceeds a threshold over a period of time per segment.
Excessive Broadcasts
The number of broadcast messages over a period of time per seg-
ment.
Excessive Collisions
The absolute number of collisions over a period of time per seg-
ment.
Excessive Mailslot Broad-
casts
The number of mailslot broadcast  events over a period of time per 
segment. 
Excessive Multicasts
The number of multicast messages over a period of time per seg-
ment. 
HSRP Errors
The number of HSRP Coup and Resign messages over a period of 
time per segment. 
ICMP All Errors
The number of ICMP symptoms. This includes all destination 
unreachable errors, redirect errors, source quench, time-out errors, 
and parameter problems.