Brocade Virtual ADX Server Load Balancing Guide (Supporting ADX v03.1.00) - Manual (Page 247)

Brocade Virtual ADX Server Load Balancing Guide 231
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Miscellaneous health check settings
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Using the slow-start list defined above, the two graphs in Figure 28 illustrate how a user-configured
slow-start mechanism ramps up the connections for a port on a real server. The graph on the left
shows the rate at which the number of HTTP connections increases over the slow-start period. The
graph on the right shows how the maximum number of HTTP connections the Brocade Virtual ADX
allows for real server rs1 increases over the slow-start period.
FIGURE 28 Example of a user-configured slow-start mechanism for port 80 (HTTP) on a real server
The graph on the left shows the rate at which the Brocade Virtual ADX allows HTTP connections for
real server rs1, as follows:
• From the time port 80 (HTTP) on real server rs1 is activated until 30 seconds afterwards (until
the end of interval 1), the Brocade Virtual ADX allows the real server up to 10 (rate 1) new HTTP
connections every second.
• From 30 seconds to 60 seconds (until the end of interval 2), the Brocade Virtual ADX allows up
to 20 (rate 2) new HTTP connections every second.
• After 60 seconds (interval 1 plus interval 2), the slow-start period ends, and the Brocade
Virtual ADX allows up to the maximum number of connections for the server set by the
max-connections variable in the slow start list.