Expert symptoms and analyses by layer -9 – Finisar Surveyor User Manual

Page 213

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10-9

Expert Features

Expert Layers

10

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

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