Slide 18 of 22
Notes:
Three Types of Sites
Remote Sites
Need Only to Respond to Ping Packets
Collecting Sites
Collecting Data: Perl Script Pings Nodes and Records Data
Serving Data: CGI/Perl Script Makes Data Available to Analysis Sites
Analysis Sites
Retrieving Data: Perl Script Retrieves Data from Collecting Sites
Analysis: SAS Program Analyzes Data and Generates Graphs
Reports: CGI/Perl Script Makes Customized Reports Available Only a few sites are pinging, so avoid “fully meshed pinging”
Common pinging software defines “standard” ping methodology (repetion rate, timeouts, payloads etc.
Remote sites need do nothing (apart from provide contacts, name of host to ping)
Collection sites need to do little
Limited number of analysis sites