Cisco's NetCentral product used to do this by sending out a bunch of
SNMP get requests (for system.sysUpTime.0 as I recall)
However, this would best be done in a somewhat multi-threaded fashion.
You would send out a bunch of queries in parallel and handle responses
asynchronously.
A custom SNMP solution might be better for this.
FYI - I believe there are more sites that block SNMP than block ICMP
____________________________________________________________________________
Doug Hughes Engineering Network Services
System/Net Admin Auburn University
doug@eng.auburn.edu
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