Cisco Systems OL-11291-01 manual For more information, see Understanding Previous Range

Chapter 2 Getting Started With IPM

Viewing Network Performance Statistics

Table 2-3	Historical Statistics Window Options (continued)
To		Action
Request an immediate poll		Select View > Demand Poll. IPM typically polls a collector once per
of statistics		hour.
(single-collector graphs		If you are between polls and do not want to wait until the next polling
only).
		period, you can use the Demand Poll function to request an immediate
		poll of the collector. The graphs are updated with the new statistics.
		If for some reason the poll fails and new statistics are not collected, the
		following error message appears.
		Demand Poll Failed, make sure router is available.
Change settings in the		Select View > Filter Data to change the time period and granularity of the
Statistics Data Filter		graphs.
window.
Display statistics for the		Select View > Next Range. The graphs are updated to reflect the new
next time period.		range.
		For more information, see Understanding Next Range.
Display statistics for the		Select View > Prev Range. The graphs are updated to reflect the new
previous time period.		range.
		For more information, see Understanding Previous Range.
Hide the legend bar at the		Select View > Hide Legend.
bottom of each graph.
Show the legend bar at the		Select View > Show Legend.
bottom of each graph.
Show combined statistics in		Select Path List, or select a specific path, then select
one graph for all paths in		View > Show Combined.
the path list, or all hops in a		A single graph is displayed showing combined statistics for all the paths
selected path (Path Echo		in the path list (up to 128 paths), or all the hops in the hop list (up to 25
collectors only).
		hops) for the selected path. The combined graph shows only average
		statistics.
		If a path has no data available, IPM displays (No Data) for that path in
		the right side of the window.
		If a path never reaches its target, it is an invalid path, and IPM displays
		(No Target) for that path in the right side of the window.
Show separate statistics in		Select Path List, or select a specific path, then select
one or more graphs for all		View > Show Separate. Multiple graphs are displayed, one for each path
paths in the path list, or all		in the path list, or hop in the hop list for the selected path. Each graph
hops in a selected path		shows minimum, maximum, and average statistics.
(Path Echo collectors only).		If a path has no data available, IPM displays No Data Available for that
		path instead of a graph.

	User Guide for Internetwork Performance Monitor
OL-11291-01		2-25