Finisar Surveyor Manual Do Utilizador
12-6
Surveyor
User’s Guide
Counter Type
Description
ICMP Destination
Unreachable
Unreachable
The number of ICMP destination unreachable errors over a period
of time per segment. Unreachable errors include Network Unreach-
able, Host Unreachable, Protocol Unreachable, Port Unreachable,
Fragmentation Needed [D/F Set], Source Route Failed, Destination
Network Unknown, Destination Host Unknown, Destination Net-
work Access Denied, Destination Host Access Denied, Network
Unreachable for TOS, and Host Unreachable for TOS.
of time per segment. Unreachable errors include Network Unreach-
able, Host Unreachable, Protocol Unreachable, Port Unreachable,
Fragmentation Needed [D/F Set], Source Route Failed, Destination
Network Unknown, Destination Host Unknown, Destination Net-
work Access Denied, Destination Host Access Denied, Network
Unreachable for TOS, and Host Unreachable for TOS.
ICMP Redirect
The number of ICMP redirect errors over a period of time per seg-
ment. Redirect errors include Network Redirect, Host Redirect,
Network Redirect for TOS, and Host Redirect for TOS.
ment. Redirect errors include Network Redirect, Host Redirect,
Network Redirect for TOS, and Host Redirect for TOS.
Illegal MAC Station Address
The number of illegal MAC station source addresses over a period
of time per segment.
of time per segment.
Illegal Network Source
Address
Address
The number of illegal network source addresses over a period of
time per segment.
time per segment.
IP Checksum Errors
The number of incorrect IP checksums over a period of time per
segment
segment
IP Time to Live Expiring
The number of expiring connections over a period of time per seg-
ment.
ment.
ISL BPDU/CDP Packets
The number of Bridge Protocol Data Unit (BPDU) or Cisco Discov-
ery Protocol (CDP) packets over a period of time per segment.
ery Protocol (CDP) packets over a period of time per segment.
ISL Illegal VLAN ID
The number of ISL illegal VLAN IDs over a period of time per seg-
ment.
ment.
NCP Server Busy
The number of NCP Server Busy events a period of time per seg-
ment.
ment.
Network Overload
The number of instances where a threshold for the percentage
change in network utilization is exceeded.
change in network utilization is exceeded.
New MAC Stations
The number of the new MAC stations over a period of time per seg-
ment.
ment.
NFS Retransmissions
The number of NFS Retransmissions over a period of time per seg-
ment.
ment.
Non Responsive Stations
The number of Non Responsive Station events. A non-responsive
station is defined as successive TCP/IP retransmissions over the
same connection that are greater than a threshold value.
station is defined as successive TCP/IP retransmissions over the
same connection that are greater than a threshold value.
OSPF Broadcasts
The number of OSPF broadcasts over a period of time per seg-
ment.
ment.
Overload Frame Rate
The number of frames over a one-second time period.
Table 12-4. Alphabetical List and Descriptions of Expert Counters (continued)