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Parameter Description<br />

A Configuration Parameters<br />

HeartbeatTimeout=150 This value sets the number of seconds the Price<br />

Server continues to run without receiving any<br />

data and heartbeats. If the Price Server has not<br />

received data or heartbeats after this time has<br />

elapsed, it dies. During normal trading hours,<br />

<strong>TT</strong>Chron restarts this process.<br />

During operation, if the Price Server loses its<br />

connection to the exchange and times out, it<br />

dies and then tries to reconnect after it is<br />

restarted.<br />

LogLinkInterval=1000 Price data is sent from the <strong>CME</strong> Group and<br />

assigned sequence numbers (links). This<br />

parameter sets the number of links the <strong>TT</strong><br />

<strong>Gateway</strong> bundles together.<br />

By default, this parameter is not present and the<br />

<strong>TT</strong> <strong>Gateway</strong> behaves as if this parameter is set<br />

to 1000.<br />

Warning: Do not modify this setting<br />

unless instructed to do so by a <strong>TT</strong><br />

Representative.<br />

RequestProducts=N Sets whether the <strong>TT</strong> <strong>Gateway</strong> will request<br />

historical product data at startup from the<strong>CME</strong><br />

Group.<br />

• Y: Historical product data is requested.<br />

• N: Historical product data is not requested.<br />

By default, this parameter is not present and the<br />

<strong>TT</strong> <strong>Gateway</strong> behaves as if this parameter is set<br />

to N.<br />

Warning:<br />

•Do not modify this setting unless<br />

instructed to do so by a <strong>TT</strong><br />

Representative.<br />

•This parameter may be overridden by<br />

any command line parameters which<br />

start historical data requests.<br />

IncludeSpreadTradesInVAP Sets whether the <strong>CME</strong> <strong>Gateway</strong> includes nonimplied<br />

spread trades when calculating Volume<br />

at Price (VAP).<br />

This parameter has two settings:<br />

• Y: The <strong>Gateway</strong> includes non-implied<br />

spread trades when calculating VAP.<br />

• N: The <strong>Gateway</strong> does not include nonimplied<br />

spread trades when calculating<br />

VAP.<br />

By default this parameter is not present. If this<br />

parameter is not present or contains an invalid<br />

value, the <strong>CME</strong> <strong>Gateway</strong> behaves as if set to Y.<br />

For a description on how the <strong>CME</strong> <strong>Gateway</strong><br />

calculates VAP, <strong>TT</strong>Q, LTQ and LTP, refer to the<br />

section called Configuring Total Traded<br />

Quantity at Price (VAP) on page 61.<br />

Table 6. [price_session] section parameters<br />

134 <strong>CME</strong> <strong>Gateway</strong> <strong>System</strong> <strong>Administration</strong> <strong>Manual</strong><br />

<strong>Trading</strong> Technologies International, Inc.

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