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9-6
Surveyor
User’s Guide
Expert Alarms
During transmit or receive, expert symptoms are logged as they occur. You can test
for certain thresholds for these conditions by setting alarms using the Expert tab of
the Alarm Editor. See the chapter on the Expert system for more information about
the expert alarms listed below.
Expert Alarms are only available if you are using Expert plug-in.
Table 9-2 lists all Expert Alarms.
Table 9-2. Expert Alarms, Listed by Protocol Layer
Application Layer Network Layer
ICMP All Errors HSRP Coup/Resign
ICMP Destination Unreachable Duplicate Network Address
ICMP Redirect Unstable MST
Excessive BOOTP SAP Broadcasts
Excessive ARP OSPF Broadcasts
NFS Retransmissions RIP Broadcasts
Total Router Broadcasts
Transport Layer ISL Illegal VLAN ID
TCP/IP SYN Attack ISL BPDU/CDP Packets
TCP/IP RST Packets IP Time to Live Expiring
TCP/IP Retransmissions Illegal Network Source Address
TCP/IP Zero Window
Data Link Layer, Ethernet
Overload Utilization Percentage
Overload Frame Rate
Illegal MAC Source Address
Total MAC Stations
New MAC Stations
Excessive Broadcasts
Excessive Multicasts
Excessive Collisions