Brocade Virtual ADX Server Load Balancing Guide (Supporting ADX v03.1.00) - Manual (Page 246)

230 Brocade Virtual ADX Server Load Balancing Guide
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Miscellaneous health check settings
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Syntax: slow-start list-id rate1 interval1 rate2 interval2 max-connections
In the slow-start command, the list-id variable specifies the slow-start list. This variable can be a
number from 1 through 1000000. When you apply the slow-start list to a port on a real server, you
refer to the slow-start list by the variable specified here. You can create multiple slow-start lists for
a given port and assign them each an ID number.
The rate1 variable specifies the number of connections per second allowed for the port during the
first interval. This variable can be a number from 1 through 1000000. From the time the port is
activated until the end of the first interval, the Brocade Virtual ADX allows the port on the real
server to receive up to this number of new connections every second.
The interval1 variable specifies the length of the first interval in seconds. This variable can be a
number from 1 through 1000000.
The rate2 variable specifies the number of connections per second allowed for the port during the
second interval. Allowed values are from 1 through 1000000. From the end of the first interval until
the end of the second interval, the Brocade Virtual ADX allows the port on the real server to receive
up to this number of new connections every second.
The interval2 variable specifies the length of the second interval in seconds. This variable can be a
number from 1 through 1000000. The number of seconds in the first interval plus the number of
seconds in the second interval are equal to the slow-start period. In this example, value specified
for the interval1 variable is 30 seconds, and the value specified for the interval2 value is 30
seconds, so the slow-start period is 60 seconds.
The max-connections variable sets a ceiling for the number of concurrent connections allowed for
the port during the time the server is active. This can be a number from 1 through 1000000. No
more than this number of connections can be established for the port on the real server where this
slow-start mechanism is applied.
Applying the slow-start list to a port on a real server
After you have created a slow-start list, you apply it to a port on a real server, by entering
commands such as the following.
Virtual ADX(config)#server real-name rs1 192.168.1.1
Virtual ADX(config-rs-rs1)#port http
Virtual ADX(config-rs-rs1)#port http slow-start 101
Virtual ADX(config-rs-rs1)#exit
Syntax: port port slow-start list-id
The port http slow-start 101 command binds slow-start list 101 (defined for port 80 above) to port
80 (HTTP) on real server rs1.