3Com 3C15500 - Network Director User Manual page 707

at least this time. Note that if your sample period did not include any
samples when the connectivity was particularly slow then it may be
advisable to add a small additional time on top of your measured longest
response time (for example, another 500 ms) to allow for additional
delays.
It is recommended that you do not enter a number of retries or a timeout
period for any request type that is less than the default value. The
defaults are reproduced below:
Table 108 Retry and Timeout Defaults
Request Type
DNS server
IP Ping
SNMP
HTTP/Telnet
End station
Note that the default timeout period for HTTP/telnet is high relative to the
defaults for the other request types in order to allow the successful
retrieval of NBX telephone information from NBX call processors during
Network Discovery.
If you do not have an NBX call processor on a particular subnet then you
may wish to specify a timeout period for HTTP/telnet requests on that
subnet that is lower than 30000 ms. In such situations it is recommended
that you do not specify a timeout period less than 6000 ms.
3Com Network Director can generate historical reports on devices in your
network. These reports will include IP Ping response times and, for DNS
servers, DNS response times. While these provide no details of retries,
the response times shown in these reports can be used to help determine
appropriate timeout periods for the devices in your network.
To generate a historical report for a device, select the device in the map or
tree and then select Monitoring > Historical Report. See
Reporting" on page 385
Default Number of
Retries
1
2
2
1
2
for more information on historical reports.
Configuration 703
Default Timeout Period
3000 ms
2000 ms
3000 ms
30000 ms
6000 ms
"Performance