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+<body>
+<div class="document" id="ieee-eui-64-unique-node-identifier">
+<h1 class="title">IEEE EUI-64 Unique Node Identifier</h1>
+<table class="docinfo" frame="void" rules="none">
+<col class="docinfo-name" />
+<col class="docinfo-content" />
+<tbody valign="top">
+<tr class="field"><th class="docinfo-name">TEP:</th><td class="field-body">122</td>
+</tr>
+<tr class="field"><th class="docinfo-name">Group:</th><td class="field-body">Core Working Group</td>
+</tr>
+<tr class="field"><th class="docinfo-name">Type:</th><td class="field-body">Documentary</td>
+</tr>
+<tr><th class="docinfo-name">Status:</th>
+<td>Draft</td></tr>
+<tr class="field"><th class="docinfo-name">TinyOS-Version:</th><td class="field-body">2.x</td>
+</tr>
+<tr><th class="docinfo-name">Author:</th>
+<td>Gilman Tolle, Jonathan Hui</td></tr>
+<tr class="field"><th class="docinfo-name">Draft-Created:</th><td class="field-body">26-Apr-2006</td>
+</tr>
+<tr class="field"><th class="docinfo-name">Draft-Version:</th><td class="field-body"></td>
+</tr>
+<tr class="field"><th class="docinfo-name">Draft-Modified:</th><td class="field-body"></td>
+</tr>
+<tr class="field"><th class="docinfo-name">Draft-Discuss:</th><td class="field-body">TinyOS Developer List <tinyos-devel at mail.millennium.berkeley.edu></td>
+</tr>
+</tbody>
+</table>
+<div class="note">
+<p class="first admonition-title">Note</p>
+<p class="last">This memo documents a part of TinyOS for the TinyOS Community, and
+requests discussion and suggestions for improvements. Distribution
+of this memo is unlimited. This memo is in full compliance with
+TEP 1.</p>
+</div>
+<div class="section">
+<h1><a id="abstract" name="abstract">Abstract</a></h1>
+<p>A TinyOS application developer may desire a globally-unique node
+identifier within the IEEE EUI-64 namespace. This document describes
+the TinyOS components used to access such an identifier.</p>
+</div>
+<div class="section">
+<h1><a id="interfaces" name="interfaces">1. Interfaces</a></h1>
+<p>A platform that can provide a valid IEEE EUI-64 globally-unique node
+identifier SHOULD provide it through a component with the signature
+defined here, enabling platform-independent access to the identifier:</p>
+<pre class="literal-block">
+configuration LocalIeeeEui64C {
+ provides interface LocalIeeeEui64;
+}
+</pre>
+<p>The identifier is accessed through the following interface:</p>
+<pre class="literal-block">
+interface LocalIeeeEui64 {
+ command ieee_eui64_t getId();
+}
+</pre>
+<p>The ieee_eui64_t type is defined in <tt class="docutils literal"><span class="pre">tos/types/IeeeEui64.h</span></tt> as:</p>
+<pre class="literal-block">
+enum { IEEE_EUI64_LENGTH = 8; }
+
+typedef struct ieee_eui64 {
+ uint8_t data[IEEE_EUI64_LENGTH];
+} ieee_eui64_t;
+</pre>
+<p>If the platform can provide a valid IEEE EUI-64, the value returned
+from this call MUST follow the IEEE EUI-64 standard.</p>
+<p>If a platform can provide a unique identifier that is not a valid IEEE
+EUI-64 identifier, it SHOULD provide its unique identifier through a
+component with a different name and a different interface. The
+definition of such an interface is outside the scope of this TEP.</p>
+</div>
+<div class="section">
+<h1><a id="ieee-eui-64" name="ieee-eui-64">2. IEEE EUI-64</a></h1>
+<p>The IEEE EUI-64 structure is copied here:</p>
+<pre class="literal-block">
+| company_id | extension identifier |
+|addr+0 | addr+1 | addr+2 | addr+3 | addr+4 | addr+5 | addr+6 | addr+7|
+| AC | DE | 48 | 23 | 45 | 67 | AB | CD |
+10101100 11011110 01001000 00100011 01000101 01100111 10101011 11001101
+| | | |
+| most significant byte least significant byte |
+most-significant bit least-significant bit
+
+If provided in byte-addressable media, the original byte-address order
+of the manufacturer is specified: the most through least significant
+bytes of the EUI-64 value are contained within the lowest through
+highest byte addresses, as illustrated above.
+</pre>
+<p>See: <a class="reference" href="http://standards.ieee.org/regauth/oui/tutorials/EUI64.html">http://standards.ieee.org/regauth/oui/tutorials/EUI64.html</a></p>
+<p>The author of the LocalIeeeEui64C component MUST ensure that the
+getId() call returns a valid EUI-64 identifier that follows the
+standard, with the bytes in the order described above.</p>
+</div>
+<div class="section">
+<h1><a id="implementation-notes" name="implementation-notes">3. Implementation Notes</a></h1>
+<p>Some TinyOS node platforms contain a unique hardware identifier that
+can be used to build the EUI-64 node identifier. That hardware
+identifier may be obtained from several places, e.g. a dedicated
+serial ID chip or a flash storage device. Users of the interface
+described in this document MUST NOT require knowledge of how the
+unique identifier is generated.</p>
+<p>The EUI-64 node identifier MUST be available before the Boot.booted()
+event is signalled. If the EUI-64 is derived from a hardware device,
+the hardware device should be accessed during the Init portion of the
+boot sequence.</p>
+</div>
+<div class="section">
+<h1><a id="author-s-address" name="author-s-address">4. Author's Address</a></h1>
+<div class="line-block">
+<div class="line">Gilman Tolle</div>
+<div class="line">Arch Rock Corporation</div>
+<div class="line">657 Mission St. Suite 600</div>
+<div class="line">San Francisco, CA 94105</div>
+<div class="line"><br /></div>
+<div class="line">phone - +1 415 692 0828</div>
+<div class="line">email - <a class="reference" href="mailto:gtolle@archrock.com">gtolle@archrock.com</a></div>
+</div>
+<div class="line-block">
+<div class="line">Jonathan Hui</div>
+<div class="line">Arch Rock Corporation</div>
+<div class="line">657 Mission St. Suite 600</div>
+<div class="line">San Francisco, CA 94105</div>
+<div class="line"><br /></div>
+<div class="line">phone - +1 415 692 0828</div>
+<div class="line">email - <a class="reference" href="mailto:jhui@archrock.com">jhui@archrock.com</a></div>
+</div>
+</div>
+</div>
+</body>
+</html>
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