HP Network Direr Software Products manual Discovery Type step select Specify subnets

728CHAPTER 17: USING 3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK

first VLAN, the database server on the second VLAN and the NBX call processor on the third VLAN.

2Your network information also indicates that the remote site has a particularly slow connection to the rest of your company’s network. You decide that the default numbers of retries and timeout periods will be unsuitable for the remote site and so you will need to determine appropriate values for the site.

As there are only 12 devices that you wish to discover, and you are going to run the discovery immediately, you decide that the simplest method for doing this will be to measure the immediate behavior, use settings based upon this behavior for the discovery, and then adjust the settings later if necessary. You also decide that you will do this by sending IP ping requests to each of the 12 devices once every five minutes over a short sample period of 30 minutes, and then estimate the settings for the other request types from the results of this.

Analyzing the IP ping results you see that the maximum number of retries was 3, while the longest response time was 2430ms. Based upon this you decide that, for IP ping requests, you will set the number of retries to 3 and the timeout period to 3000ms. As this is 1 more retry and a 1000ms longer timeout period than the default values for IP ping requests you decide that you will simply increment the settings for the other request types by these values. As a result, you will use the following settings for this site:

Figure 388 Default Retry and Timeout Settings

	Default Number of
Request Type	Retries	Default Timeout Period
IP Ping	3	3000 ms
SNMP	3	4000 ms
HTTP/Telnet	2	31000 ms
End station	3	7000 ms

3Launch the Network Discovery wizard by selecting Tools > Network Discovery.

4In the Discovery Type step select Specify subnets.