Finisar Surveyor manual Network Unknown, Destination Host Unknown, Destination Net

Surveyor

User’s Guide

Table 12-4. Alphabetical List and Descriptions of Expert Counters (continued)

Counter Type	Description
ICMP Destination	The number of ICMP destination unreachable errors over a period
Unreachable	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.
Illegal MAC Station Address	The number of illegal MAC station source addresses over a period
	of time per segment.
Illegal Network Source	The number of illegal network source addresses over a period of
Address	time per segment.
IP Checksum Errors	The number of incorrect IP checksums over a period of time per
	segment
IP Time to Live Expiring	The number of expiring connections over a period of time per seg-
	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.
ISL Illegal VLAN ID	The number of ISL illegal VLAN IDs over a period of time per seg-
	ment.
NCP Server Busy	The number of NCP Server Busy events a period of time per seg-
	ment.
Network Overload	The number of instances where a threshold for the percentage
	change in network utilization is exceeded.
New MAC Stations	The number of the new MAC stations over a period of time per seg-
	ment.
NFS Retransmissions	The number of NFS Retransmissions over a period of time per seg-
	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.
OSPF Broadcasts	The number of OSPF broadcasts over a period of time per seg-
	ment.
Overload Frame Rate	The number of frames over a one-second time period.

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