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<div class="navpath"><a class="el" href="namespacedtn.html">dtn</a>::<a class="el" href="classdtn_1_1Link.html">Link</a>::<a class="el" href="structdtn_1_1Link_1_1Params.html">Params</a>
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<h1>dtn::Link::Params Struct Reference</h1><!-- doxytag: class="dtn::Link::Params" --><code>#include <<a class="el" href="contacts_2Link_8h-source.html">Link.h</a>></code>
<p>
<p>
<a href="structdtn_1_1Link_1_1Params-members.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>
<p>Definition at line <a class="el" href="contacts_2Link_8h-source.html#l00489">489</a> of file <a class="el" href="contacts_2Link_8h-source.html">contacts/Link.h</a>.</p>
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<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="structdtn_1_1Link_1_1Params.html#fcb1f9e879bb37651c9a583add26ddd3">Params</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Default constructor. <a href="#fcb1f9e879bb37651c9a583add26ddd3"></a><br></td></tr>
<tr><td colspan="2"><br><h2>Public Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">u_int </td><td class="memItemRight" valign="bottom"><a class="el" href="structdtn_1_1Link_1_1Params.html#eec9ca484ef0d6b1ad8be5ba0d84b83a">mtu_</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">MTU of the link, used to control proactive fragmentation. <a href="#eec9ca484ef0d6b1ad8be5ba0d84b83a"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">u_int </td><td class="memItemRight" valign="bottom"><a class="el" href="structdtn_1_1Link_1_1Params.html#0cb23f2a30266a7ae0bd7c532a080658">min_retry_interval_</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Minimum amount to wait between attempts to re-open the link (in seconds). <a href="#0cb23f2a30266a7ae0bd7c532a080658"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">u_int </td><td class="memItemRight" valign="bottom"><a class="el" href="structdtn_1_1Link_1_1Params.html#c0f4477aed7651683eaf2f1867f2fcba">max_retry_interval_</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Maximum amount to wait between attempts to re-open the link (in seconds). <a href="#c0f4477aed7651683eaf2f1867f2fcba"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">u_int </td><td class="memItemRight" valign="bottom"><a class="el" href="structdtn_1_1Link_1_1Params.html#fc30abf0ec53cdf3bbd61c2f09631537">idle_close_time_</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Seconds of idle time before the link is closed. <a href="#fc30abf0ec53cdf3bbd61c2f09631537"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">u_int </td><td class="memItemRight" valign="bottom"><a class="el" href="structdtn_1_1Link_1_1Params.html#de74e35b04b571720872da14b2cdc981">potential_downtime_</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Conservative estimate of the maximum amount of time that the link may be down during "normal" operation. <a href="#de74e35b04b571720872da14b2cdc981"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="serialsource_8c.html#1062901a7428fdd9c7f180f5e01ea056">bool</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="structdtn_1_1Link_1_1Params.html#238a49758ae2c63f43d3f804ff5d8d1e">prevhop_hdr_</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Whether or not to send the previous hop header on this link. <a href="#238a49758ae2c63f43d3f804ff5d8d1e"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">u_int </td><td class="memItemRight" valign="bottom"><a class="el" href="structdtn_1_1Link_1_1Params.html#f9f0f187f9b7f4cfeb1503645c0c3c64">cost_</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Abstract cost of the link, used by routing algorithms. <a href="#f9f0f187f9b7f4cfeb1503645c0c3c64"></a><br></td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">u_int </td><td class="memItemRight" valign="bottom"><a class="el" href="structdtn_1_1Link_1_1Params.html#3f3c74f1709d17b1ff0e6d70d7d75d27">qlimit_bundles_high_</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">u_int64_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structdtn_1_1Link_1_1Params.html#a22705344512f5f0a2539085e43c2a91">qlimit_bytes_high_</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">u_int </td><td class="memItemRight" valign="bottom"><a class="el" href="structdtn_1_1Link_1_1Params.html#83d3ea917e3190f068c01b557d346246">qlimit_bundles_low_</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">u_int64_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structdtn_1_1Link_1_1Params.html#d349ab6543ec5b58b0064475974f3405">qlimit_bytes_low_</a></td></tr>
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<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="fcb1f9e879bb37651c9a583add26ddd3"></a><!-- doxytag: member="dtn::Link::Params::Params" ref="fcb1f9e879bb37651c9a583add26ddd3" args="()" -->
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<td class="memname">dtn::Link::Params::Params </td>
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<p>
Default constructor.
<p>
Default parameters, values overridden in <a class="el" href="classdtn_1_1ParamCommand.html" title="Parameter setting command.">ParamCommand</a>.
<p>Definition at line <a class="el" href="Link_8cc-source.html#l00040">40</a> of file <a class="el" href="Link_8cc-source.html">Link.cc</a>.</p>
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<hr><h2>Member Data Documentation</h2>
<a class="anchor" name="eec9ca484ef0d6b1ad8be5ba0d84b83a"></a><!-- doxytag: member="dtn::Link::Params::mtu_" ref="eec9ca484ef0d6b1ad8be5ba0d84b83a" args="" -->
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<td class="memname">u_int <a class="el" href="structdtn_1_1Link_1_1Params.html#eec9ca484ef0d6b1ad8be5ba0d84b83a">dtn::Link::Params::mtu_</a> </td>
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<p>
MTU of the link, used to control proactive fragmentation.
<p>
<p>Definition at line <a class="el" href="contacts_2Link_8h-source.html#l00498">498</a> of file <a class="el" href="contacts_2Link_8h-source.html">contacts/Link.h</a>.</p>
<p>Referenced by <a class="el" href="Link_8cc-source.html#l00591">dtn::Link::dump()</a>, and <a class="el" href="Link_8cc-source.html#l00308">dtn::Link::parse_args()</a>.</p>
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<a class="anchor" name="0cb23f2a30266a7ae0bd7c532a080658"></a><!-- doxytag: member="dtn::Link::Params::min_retry_interval_" ref="0cb23f2a30266a7ae0bd7c532a080658" args="" -->
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<td class="memname">u_int <a class="el" href="structdtn_1_1Link_1_1Params.html#0cb23f2a30266a7ae0bd7c532a080658">dtn::Link::Params::min_retry_interval_</a> </td>
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<p>
Minimum amount to wait between attempts to re-open the link (in seconds).
<p>
Default is set by the various <a class="el" href="classdtn_1_1Link.html" title="Abstraction for a DTN link, i.e.">Link</a> types but can be overridden by configuration parameters.
<p>Definition at line <a class="el" href="contacts_2Link_8h-source.html#l00507">507</a> of file <a class="el" href="contacts_2Link_8h-source.html">contacts/Link.h</a>.</p>
<p>Referenced by <a class="el" href="Link_8cc-source.html#l00591">dtn::Link::dump()</a>, <a class="el" href="Link_8cc-source.html#l00308">dtn::Link::parse_args()</a>, <a class="el" href="Link_8cc-source.html#l00207">dtn::Link::reconfigure_link()</a>, and <a class="el" href="Link_8cc-source.html#l00260">dtn::Link::serialize()</a>.</p>
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<a class="anchor" name="c0f4477aed7651683eaf2f1867f2fcba"></a><!-- doxytag: member="dtn::Link::Params::max_retry_interval_" ref="c0f4477aed7651683eaf2f1867f2fcba" args="" -->
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<td class="memname">u_int <a class="el" href="structdtn_1_1Link_1_1Params.html#c0f4477aed7651683eaf2f1867f2fcba">dtn::Link::Params::max_retry_interval_</a> </td>
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<p>
Maximum amount to wait between attempts to re-open the link (in seconds).
<p>
Default is set by the various <a class="el" href="classdtn_1_1Link.html" title="Abstraction for a DTN link, i.e.">Link</a> types but can be overridden by configuration parameters.
<p>Definition at line <a class="el" href="contacts_2Link_8h-source.html#l00516">516</a> of file <a class="el" href="contacts_2Link_8h-source.html">contacts/Link.h</a>.</p>
<p>Referenced by <a class="el" href="Link_8cc-source.html#l00591">dtn::Link::dump()</a>, <a class="el" href="Link_8cc-source.html#l00308">dtn::Link::parse_args()</a>, <a class="el" href="Link_8cc-source.html#l00207">dtn::Link::reconfigure_link()</a>, and <a class="el" href="Link_8cc-source.html#l00260">dtn::Link::serialize()</a>.</p>
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<a class="anchor" name="fc30abf0ec53cdf3bbd61c2f09631537"></a><!-- doxytag: member="dtn::Link::Params::idle_close_time_" ref="fc30abf0ec53cdf3bbd61c2f09631537" args="" -->
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<td class="memname">u_int <a class="el" href="structdtn_1_1Link_1_1Params.html#fc30abf0ec53cdf3bbd61c2f09631537">dtn::Link::Params::idle_close_time_</a> </td>
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<p>
Seconds of idle time before the link is closed.
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Must be zero for always on links (i.e. they are never closed).<p>
Default is 30 seconds for on demand links, zero for opportunistic links.
<p>Definition at line <a class="el" href="contacts_2Link_8h-source.html#l00525">525</a> of file <a class="el" href="contacts_2Link_8h-source.html">contacts/Link.h</a>.</p>
<p>Referenced by <a class="el" href="Link_8cc-source.html#l00591">dtn::Link::dump()</a>, <a class="el" href="OndemandLink_8cc-source.html#l00027">dtn::OndemandLink::OndemandLink()</a>, <a class="el" href="Link_8cc-source.html#l00308">dtn::Link::parse_args()</a>, <a class="el" href="Link_8cc-source.html#l00207">dtn::Link::reconfigure_link()</a>, and <a class="el" href="Link_8cc-source.html#l00260">dtn::Link::serialize()</a>.</p>
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<a class="anchor" name="de74e35b04b571720872da14b2cdc981"></a><!-- doxytag: member="dtn::Link::Params::potential_downtime_" ref="de74e35b04b571720872da14b2cdc981" args="" -->
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<td class="memname">u_int <a class="el" href="structdtn_1_1Link_1_1Params.html#de74e35b04b571720872da14b2cdc981">dtn::Link::Params::potential_downtime_</a> </td>
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<p>
Conservative estimate of the maximum amount of time that the link may be down during "normal" operation.
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Used by routing algorithms to determine how long to leave bundles queued on the down link before rerouting them. Fefault is 30 seconds.
<p>Definition at line <a class="el" href="contacts_2Link_8h-source.html#l00534">534</a> of file <a class="el" href="contacts_2Link_8h-source.html">contacts/Link.h</a>.</p>
<p>Referenced by <a class="el" href="Link_8cc-source.html#l00591">dtn::Link::dump()</a>, <a class="el" href="Link_8cc-source.html#l00308">dtn::Link::parse_args()</a>, <a class="el" href="Link_8cc-source.html#l00207">dtn::Link::reconfigure_link()</a>, and <a class="el" href="Link_8cc-source.html#l00260">dtn::Link::serialize()</a>.</p>
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<a class="anchor" name="238a49758ae2c63f43d3f804ff5d8d1e"></a><!-- doxytag: member="dtn::Link::Params::prevhop_hdr_" ref="238a49758ae2c63f43d3f804ff5d8d1e" args="" -->
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<td class="memname"><a class="el" href="serialsource_8c.html#1062901a7428fdd9c7f180f5e01ea056">bool</a> <a class="el" href="structdtn_1_1Link_1_1Params.html#238a49758ae2c63f43d3f804ff5d8d1e">dtn::Link::Params::prevhop_hdr_</a> </td>
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<p>
Whether or not to send the previous hop header on this link.
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Default is false.
<p>Definition at line <a class="el" href="contacts_2Link_8h-source.html#l00540">540</a> of file <a class="el" href="contacts_2Link_8h-source.html">contacts/Link.h</a>.</p>
<p>Referenced by <a class="el" href="Link_8cc-source.html#l00591">dtn::Link::dump()</a>, and <a class="el" href="Link_8cc-source.html#l00308">dtn::Link::parse_args()</a>.</p>
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<a class="anchor" name="f9f0f187f9b7f4cfeb1503645c0c3c64"></a><!-- doxytag: member="dtn::Link::Params::cost_" ref="f9f0f187f9b7f4cfeb1503645c0c3c64" args="" -->
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<td class="memname">u_int <a class="el" href="structdtn_1_1Link_1_1Params.html#f9f0f187f9b7f4cfeb1503645c0c3c64">dtn::Link::Params::cost_</a> </td>
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<p>
Abstract cost of the link, used by routing algorithms.
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Default is 100.
<p>Definition at line <a class="el" href="contacts_2Link_8h-source.html#l00546">546</a> of file <a class="el" href="contacts_2Link_8h-source.html">contacts/Link.h</a>.</p>
<p>Referenced by <a class="el" href="Link_8cc-source.html#l00308">dtn::Link::parse_args()</a>, and <a class="el" href="Link_8cc-source.html#l00260">dtn::Link::serialize()</a>.</p>
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<a class="anchor" name="3f3c74f1709d17b1ff0e6d70d7d75d27"></a><!-- doxytag: member="dtn::Link::Params::qlimit_bundles_high_" ref="3f3c74f1709d17b1ff0e6d70d7d75d27" args="" -->
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<td class="memname">u_int <a class="el" href="structdtn_1_1Link_1_1Params.html#3f3c74f1709d17b1ff0e6d70d7d75d27">dtn::Link::Params::qlimit_bundles_high_</a> </td>
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<p>
Configurable high / low limits on the number of bundles/bytes that should be queued on the link.<p>
The high limits are used by Link::is_queue_full() to indicate whether or not more bundles can be queued onto the link to effect backpressure from the convergence layers.<p>
The low limits can be used by the router to determine when to re-scan the pending bundle lists
<p>Definition at line <a class="el" href="contacts_2Link_8h-source.html#l00560">560</a> of file <a class="el" href="contacts_2Link_8h-source.html">contacts/Link.h</a>.</p>
<p>Referenced by <a class="el" href="Link_8cc-source.html#l00308">dtn::Link::parse_args()</a>, and <a class="el" href="Link_8cc-source.html#l00465">dtn::Link::queue_is_full()</a>.</p>
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<a class="anchor" name="a22705344512f5f0a2539085e43c2a91"></a><!-- doxytag: member="dtn::Link::Params::qlimit_bytes_high_" ref="a22705344512f5f0a2539085e43c2a91" args="" -->
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<td class="memname">u_int64_t <a class="el" href="structdtn_1_1Link_1_1Params.html#a22705344512f5f0a2539085e43c2a91">dtn::Link::Params::qlimit_bytes_high_</a> </td>
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<p>
Configurable high / low limits on the number of bundles/bytes that should be queued on the link.<p>
The high limits are used by Link::is_queue_full() to indicate whether or not more bundles can be queued onto the link to effect backpressure from the convergence layers.<p>
The low limits can be used by the router to determine when to re-scan the pending bundle lists
<p>Definition at line <a class="el" href="contacts_2Link_8h-source.html#l00561">561</a> of file <a class="el" href="contacts_2Link_8h-source.html">contacts/Link.h</a>.</p>
<p>Referenced by <a class="el" href="Link_8cc-source.html#l00308">dtn::Link::parse_args()</a>, and <a class="el" href="Link_8cc-source.html#l00465">dtn::Link::queue_is_full()</a>.</p>
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<a class="anchor" name="83d3ea917e3190f068c01b557d346246"></a><!-- doxytag: member="dtn::Link::Params::qlimit_bundles_low_" ref="83d3ea917e3190f068c01b557d346246" args="" -->
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<td class="memname">u_int <a class="el" href="structdtn_1_1Link_1_1Params.html#83d3ea917e3190f068c01b557d346246">dtn::Link::Params::qlimit_bundles_low_</a> </td>
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<p>
Configurable high / low limits on the number of bundles/bytes that should be queued on the link.<p>
The high limits are used by Link::is_queue_full() to indicate whether or not more bundles can be queued onto the link to effect backpressure from the convergence layers.<p>
The low limits can be used by the router to determine when to re-scan the pending bundle lists
<p>Definition at line <a class="el" href="contacts_2Link_8h-source.html#l00562">562</a> of file <a class="el" href="contacts_2Link_8h-source.html">contacts/Link.h</a>.</p>
<p>Referenced by <a class="el" href="Link_8cc-source.html#l00308">dtn::Link::parse_args()</a>, and <a class="el" href="Link_8cc-source.html#l00473">dtn::Link::queue_has_space()</a>.</p>
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<a class="anchor" name="d349ab6543ec5b58b0064475974f3405"></a><!-- doxytag: member="dtn::Link::Params::qlimit_bytes_low_" ref="d349ab6543ec5b58b0064475974f3405" args="" -->
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<td class="memname">u_int64_t <a class="el" href="structdtn_1_1Link_1_1Params.html#d349ab6543ec5b58b0064475974f3405">dtn::Link::Params::qlimit_bytes_low_</a> </td>
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<p>
Configurable high / low limits on the number of bundles/bytes that should be queued on the link.<p>
The high limits are used by Link::is_queue_full() to indicate whether or not more bundles can be queued onto the link to effect backpressure from the convergence layers.<p>
The low limits can be used by the router to determine when to re-scan the pending bundle lists
<p>Definition at line <a class="el" href="contacts_2Link_8h-source.html#l00563">563</a> of file <a class="el" href="contacts_2Link_8h-source.html">contacts/Link.h</a>.</p>
<p>Referenced by <a class="el" href="Link_8cc-source.html#l00308">dtn::Link::parse_args()</a>, and <a class="el" href="Link_8cc-source.html#l00473">dtn::Link::queue_has_space()</a>.</p>
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<hr>The documentation for this struct was generated from the following files:<ul>
<li><a class="el" href="contacts_2Link_8h-source.html">contacts/Link.h</a><li><a class="el" href="Link_8cc-source.html">Link.cc</a></ul>
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