Deployment Guide

FIGURE 6 Right-click menu for ports (from Switch Explorer)
The tasks are:
• The Port Admin option displays the Port Admin tab.
• The Port Details option displays read-only information about a port, without opening the Port
Admin tab. You can right-click on the table content to export or copy the information from the Port
Details window.
• The Configure option provides another menu of options to allow you to rename, enable, and
disable ports, and to set persistent enable or disable without opening the Port Admin tab.
Refresh rates
The refresh, or polling, rates listed in this section and throughout the book indicate the time between
the end of one polling period and the start of the next, and not how often the screen is refreshed. A
refresh rate of 60 seconds does not ensure that a refresh occurs every 60 seconds. It ensures that the
time between each refresh activity is no more than 60 seconds.
Auto-refresh intervals might be not be exactly 60 seconds. The refresh rate varies depending on the
activity in the fabric and on the host system you are using. Following are some variables you should
consider when refreshing the fabric:
• Refresh Now button is disabled for 6-8 seconds on every click.
• Retrieval time increases when you are in a large fabric because there is more data to retrieve from
the switches.
• Processor speed of the system you are using may slow down the refresh rate.
• OS-Job Scheduling if you are using a host system in the data center impacts the refresh rate.
• JVM-Performance can contribute to causing interval differences between what is on-screen and
how long it is actually taking.
For these reasons, the time displayed in the port statistics tab might not be refreshed as expected.
The counter time indicates only that "this statistics data is retrieved from the switch in this time period."
To ensure the correct information, the time field is updated along with the port statistics data after
every refresh.
The refresh rates are different for each module. The following table lists polling rates by module.
Though these rates are sample rates, they correctly illustrate variance in the refresh rates throughout
Web Tools.
Polling rates
TABLE 6
Module Polling rate
Name Server User-defined; 45 sec minimum
Refresh rates
46 Web Tools Administrator's Guide
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