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		<id>https://docs.telcobridges.com/mediawiki/index.php?action=history&amp;feed=atom&amp;title=MTP2%3ASignal_Unit_Error_Rate_Threshold</id>
		<title>MTP2:Signal Unit Error Rate Threshold - Revision history</title>
		<link rel="self" type="application/atom+xml" href="https://docs.telcobridges.com/mediawiki/index.php?action=history&amp;feed=atom&amp;title=MTP2%3ASignal_Unit_Error_Rate_Threshold"/>
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		<updated>2026-06-10T12:47:07Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://docs.telcobridges.com/mediawiki/index.php?title=MTP2:Signal_Unit_Error_Rate_Threshold&amp;diff=2541&amp;oldid=prev</id>
		<title>Ktrueman: cleaned up</title>
		<link rel="alternate" type="text/html" href="https://docs.telcobridges.com/mediawiki/index.php?title=MTP2:Signal_Unit_Error_Rate_Threshold&amp;diff=2541&amp;oldid=prev"/>
				<updated>2009-09-02T13:44:53Z</updated>
		
		<summary type="html">&lt;p&gt;cleaned up&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
		&lt;tr valign='top'&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 13:44, 2 September 2009&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;The MTP2 layer is responsible &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;to retransmit &lt;/del&gt;missing [[MSU]]&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;s &lt;/del&gt;to the remote peer to ensure a valid flow of data. &lt;del class=&quot;diffchange diffchange-inline&quot;&gt; &lt;/del&gt;However, when the error rate of &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;[[MSU]]s &lt;/del&gt;(the number of errored &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;[[MSU]]s &lt;/del&gt;per unit of time) crosses a defined threshold, the link is &lt;del class=&quot;diffchange diffchange-inline&quot;&gt; &lt;/del&gt;taken out of service automatically (usually by the upper MTP3 layer). &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;&amp;#160; &lt;/del&gt;The 'Signal unit error rate threshold' parameter defines this threshold estimate to be monitored by the MTP2 layer before declaring the link as down.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;The MTP2 layer is responsible &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;for retransmitting &lt;/ins&gt;missing [[MSU&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;|MSUs&lt;/ins&gt;]] to the remote peer to ensure a valid flow of data. However, when the error rate of &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;MSUs &lt;/ins&gt;(the number of errored &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;MSUs &lt;/ins&gt;per unit of time) crosses a defined threshold, the link is taken out of service automatically (usually by the upper MTP3 layer).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;The &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;''&lt;/ins&gt;'Signal unit error rate threshold&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;''&lt;/ins&gt;' parameter defines this threshold estimate to be monitored by the MTP2 layer before declaring the link as down.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

&lt;!-- diff cache key wikidb:diff:version:1.11a:oldid:2534:newid:2541 --&gt;
&lt;/table&gt;</summary>
		<author><name>Ktrueman</name></author>	</entry>

	<entry>
		<id>https://docs.telcobridges.com/mediawiki/index.php?title=MTP2:Signal_Unit_Error_Rate_Threshold&amp;diff=2534&amp;oldid=prev</id>
		<title>Cboulanger at 03:02, 2 September 2009</title>
		<link rel="alternate" type="text/html" href="https://docs.telcobridges.com/mediawiki/index.php?title=MTP2:Signal_Unit_Error_Rate_Threshold&amp;diff=2534&amp;oldid=prev"/>
				<updated>2009-09-02T03:02:44Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
		&lt;tr valign='top'&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 03:02, 2 September 2009&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;The &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;'Signal unit &lt;/del&gt;error rate threshold&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;' parameter has as its function &lt;/del&gt;the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;estimation &lt;/del&gt;of the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;signal &lt;/del&gt;unit error rate &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;in order &lt;/del&gt;to &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;determine &lt;/del&gt;the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;signaling &lt;/del&gt;link &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;fault condition&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;The &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;MTP2 layer is responsible to retransmit missing [[MSU]]s to the remote peer to ensure a valid flow of data.&amp;#160; However, when the &lt;/ins&gt;error rate &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;of [[MSU]]s (the number of errored [[MSU]]s per unit of time) crosses a defined &lt;/ins&gt;threshold&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;, &lt;/ins&gt;the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;link is&amp;#160; taken out &lt;/ins&gt;of &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;service automatically (usually by &lt;/ins&gt;the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;upper MTP3 layer).&amp;#160;  The 'Signal &lt;/ins&gt;unit error rate &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;threshold' parameter defines this threshold estimate &lt;/ins&gt;to &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;be monitored by the MTP2 layer before declaring &lt;/ins&gt;the link &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;as down&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;DESCRIPTION SHOULD BE MORE CLEAR&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;[[Category:needs revising]]&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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&lt;/table&gt;</summary>
		<author><name>Cboulanger</name></author>	</entry>

	<entry>
		<id>https://docs.telcobridges.com/mediawiki/index.php?title=MTP2:Signal_Unit_Error_Rate_Threshold&amp;diff=2177&amp;oldid=prev</id>
		<title>Ktrueman: correction</title>
		<link rel="alternate" type="text/html" href="https://docs.telcobridges.com/mediawiki/index.php?title=MTP2:Signal_Unit_Error_Rate_Threshold&amp;diff=2177&amp;oldid=prev"/>
				<updated>2009-08-14T20:30:34Z</updated>
		
		<summary type="html">&lt;p&gt;correction&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
		&lt;tr valign='top'&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 20:30, 14 August 2009&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;The &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;signal &lt;/del&gt;unit error rate threshold parameter has as its function the estimation of the signal unit error rate in order to determine the signaling link fault condition.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;The &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;'Signal &lt;/ins&gt;unit error rate threshold&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;' &lt;/ins&gt;parameter has as its function the estimation of the signal unit error rate in order to determine the signaling link fault condition.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;

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&lt;/table&gt;</summary>
		<author><name>Ktrueman</name></author>	</entry>

	<entry>
		<id>https://docs.telcobridges.com/mediawiki/index.php?title=MTP2:Signal_Unit_Error_Rate_Threshold&amp;diff=2174&amp;oldid=prev</id>
		<title>Ktrueman: initial content</title>
		<link rel="alternate" type="text/html" href="https://docs.telcobridges.com/mediawiki/index.php?title=MTP2:Signal_Unit_Error_Rate_Threshold&amp;diff=2174&amp;oldid=prev"/>
				<updated>2009-08-14T20:28:23Z</updated>
		
		<summary type="html">&lt;p&gt;initial content&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;The signal unit error rate threshold parameter has as its function the estimation of the signal unit error rate in order to determine the signaling link fault condition.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
DESCRIPTION SHOULD BE MORE CLEAR&lt;br /&gt;
&lt;br /&gt;
[[Category:needs revising]]&lt;/div&gt;</summary>
		<author><name>Ktrueman</name></author>	</entry>

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