Configuring UDP and TCP Parameters
UDP and TCP probe parameters are configured on all server pools and apply only to the server
instances (and thus the servers) within a server pool:
GUI Probe Parameter (CLI Probe Parameter)
Description
Probe Interval (probe_interval)
A timer specifying the length of time (in seconds) during
which a successful TCP or UDP server probe must occur,
or the server is marked "down".
If one or more successful probes have occurred before
this timer expires, the server is marked "up" and the
timer is reset. If no successful probes have occurred, the
server is marked ‘down" and the timer is reset.
The
Probe Interval
acts as a hard limit on the
Probe
Global Timeout
-- if a probe is in progress when the
Probe Interval
expires, then the probe is timed out.
Max Tries Per Interval (probe_maxties)
The maximum number of times per
Probe Interval
that
Equalizer will attempt to probe a TCP or UDP server. For
example, if
Max Tries Per Interval
is set to
3
(the
default), will send at most 3 probes to the server during
any
Probe Interval
period.
Probe Global Timeout (probe_gto)
The maximum length of time (in seconds) to wait for a TCP
or UDP probe to be sent and a connection established or a
response is received. If the number of seconds specified
exceeds the
Probe Interval
setting, then the
Probe
Interval
is used as the
Probe Global Timeout
.
Probe Connect Timeout (probe_cto)
The maximum length of time (in seconds) to wait for a TCP
server probe connection to be established.
Probe Data Timeout (probe_dto)
The maximum length of time (in seconds) to wait for the
first byte of data to be transmitted over a TCP server
probe connection.
ACV Query (acvq)
An optional string that is sent to the server to elicit the
ACV Response
. Some applications (notably Java) need to
be queried before they return a response.
ACV Response (acvr)
A string that must match the ACV probe data received
from a server in order for the server to be marked "up".
POSIX style regular expressions are supported.
UDP and TCP Parameters
Copyright © 2014 Coyote Point Systems, A Subsidiary of Fortinet, Inc.
All Rights Reserved.
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Equalizer Administration Guide
Summary of Contents for Equalizer GX Series
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