Server Response Time Analysis
Server Response Time (SRT) metrics can be reported for applications using TCP connections carrying request/response application layer protocols, for example, web, email, or SSH connections. To report these metrics AppResponse requires the following:
◼ AppResponse must see both directions of traffic flow on the same monitoring interface group (VIFG).
◼ TCP connection history expires on AppResponse when a long-lived connection is silent for more than five minutes. No SRT metrics are available for that connection.
◼ No SRT metrics are available for optimized connections.
Applications that meet these requirements for SRT analysis can be specified using one of the following modes:
◼ Port Whitelist Mode—This mode uses two steps to specify applications. The first step uses the first table to specify the ports and optional servers to include when reporting Server Response Time metrics. The second step uses the bottom table to specify ports and optional servers included by the first table that are to be excluded when reporting Server Response Time metrics.
For example, you may want SRT metrics for internal web traffic but not for external web traffic. You could add information to the first table on the ports used for web traffic. In the second table you would use the same ports and add external Web Server IP addresses to exclude reporting SRT metrics for the external web traffic.
◼ All Ports Mode—The table entries exclude the ports and optional servers specified from Server Response Time reporting. Server Response Time is reported for all other ports and servers.
Configuring the Mode
The Server Response Time (TCP) page is used to configure the mode to be used and to specify the ports and optional servers for reporting SRT. The mode is set on the General tab and the ports and servers for each mode are specified on their respective tabs, Port Whitelist or All Ports.
1. Go to Administration > Feature Settings: Server Response Time (TCP), General tab.
2. Click the radio button next to the mode you wish to use. By default, Port Whitelist mode is enabled.
3. Click Apply to make or Revert to reset the change made.