Coyote Point Systems E350GX Installation And Administration Manual page 270

Appendix B: Timeout Configuration
Figure 61 Probe timeout parameters
The parameters shown in the figure above determine how high level TCP and ACV server probes are handled, as
follows:
1. Equalizer begins a TCP probe by sending a TCP SYN packet to the server:
• If the server and Equalizer negotiate a three-way TCP handshake (SYN, SYN/ACK, ACK) within the
probe timeout
• If the server and Equalizer do not handshake within the
server failing; go to
2. Equalizer then determines whether or not to send the server an ACV probe:
• If an
ACV Response
the server up and waits for the
• Otherwise, if an
string (if defined) is sent to the server on the TCP connection opened for high-level probing; if
Probe
there is no ACV probe string, nothing is sent, only the connection is opened. In either case, Equalizer
266
period, go to .
Step 2
.
Step 3
string is not defined for the cluster to which the server belongs, Equalizer marks
probe delay
string is defined for the cluster to which the server belongs, the
ACV Response
probe timeout
period before it starts the HLP process again at
Equalizer Installation and Administration Guide
period, Equalizer marks the
Step 1
ACV
.