10-9
Expert Features
Expert Layers10
Table 10-1. Expert Symptoms and Analyses by Layer
Layer Expert Symptoms Expert Analyses
Application Excessive ARP
Excessive BOOTP
Excessive Mailslot Broadcasts
FTP Login Attempts
Missed Browser Announcement
NCP File Retransmission
NCP Read/Write Overlap
NCP Request Denied
NCP Request Loop
NCP Server Busy
NFS Retransmission
Slow HTTP GET Response
Slow HTTP POST Response
Slow Server Connect
Slow Server Response
SMB Invalid Network Name
SMB Invalid Password
No Server Response
No HTTP POST Response
NCP Too Many Retransmissions
NCP Too Many Requests Denied
NCP Too Many Request Loops
Session TNS Slow Server Connect
TNS Slow Server Response
No WINS Response
Transport Idle Too Long
TCP Checksum Errors
TCP Fast Retransmission
TCP Frozen Window
TCP Long Ack
TCP Repeat Ack
TCP Retransmission
TCP SYN Attack
TCP Window Exceeded
TCP Window Probe
TCP Zero Window
Non-Responsive Station
Too Many Retransmissions
Network HSRP Errors
All ICMP Errors
Illegal Network Source Address
IP Checksum Errors
IP Time To Live Expiring
ISL Illegal VLAN ID
Router Storm
Same Network Addresses
Unstable MST
Zero Broadcast Address
Duplicate Network Address
Data Link Bad Frames
Broadcast/Multicast Storms
Illegal MAC Source Address
Network Overload
Physical Errors
Same MAC Addresses
None