Brocade Virtual ADX Graphical User Interface Guide (Supporting ADX v03.1.00) - Manual (Page 103)

Brocade Virtual ADX Graphical User Interface Guide 91
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Health checks
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For more information on the static routes, refer to the Brocade Virtual ADX Server Load Balancing
Guide.
Health checks
The Brocade Virtual ADX uses Layer 3, and Layer 4 or Layer 7 health checks to verify the availability
of real servers and the applications on the real servers.
Enabling Layer 2 to Layer 4 health checks
The Brocade Virtual ADX uses Layer 2 health check to verify whether the real server is reachable
through the network using the Address Resolution Protocol (ARP) request. The Brocade Virtual ADX
uses the Layer 3 health check to verify whether the real server is reachable through the network
using IP pings. The Brocade Virtual ADX performs Layer 4 health check to bring up the application
port that binds the real and virtual servers using TCP and UDP health check.
To globally enable Layer 2, Layer 3, and Layer 4 health checks on the Brocade Virtual ADX, perform
the following steps within the Configure tab.
1. Click Traffic on the menu bar.
2. From the sidebar, select Health Checks.
The Health Checks page is displayed, as shown in Figure 76 .
FIGURE 76 Health check summary
3. Under Layer 2 ARP Check, provide the following information:
• Periodic ARP Check: Select the Enable check box to send layer 2 ARP request to the real
server to verify that the Brocade Virtual ADX can reach the server through the network. By
default, periodic ARP check is enabled.
• Interval: Enter the time of interval for Layer 2 ARP check, in seconds. The range is from 10
through 14,400 seconds. The default is 10 seconds.