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diff --git a/Bachelor/CCNA4/en_CCNA4_v30/ch6/6_2_5/content.html b/Bachelor/CCNA4/en_CCNA4_v30/ch6/6_2_5/content.html new file mode 100644 index 0000000..f13d7b3 --- /dev/null +++ b/Bachelor/CCNA4/en_CCNA4_v30/ch6/6_2_5/content.html @@ -0,0 +1,86 @@ +<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns="http://www.w3.org/TR/REC-html40">
+
+<head>
+<meta http-equiv="Content-Language" content="en-us">
+<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
+<title>Content</title>
+<base target="_self">
+</head>
+
+<body background="../../images/bg.gif" topmargin="0" leftmargin="0" marginheight="0" marginwidth="0" onLoad="window.focus();" link="#808080" vlink="#808080" alink="#808080">
+
+<table border="0" cellpadding="0" cellspacing="0" width="100%">
+ <tr>
+ <td bgcolor="#336666" width="18" valign="top">
+ <img border="0" src="../../images/content_lines.gif" width="16" height="25">
+ <img border="0" src="../../images/transdot.gif" width="2" height="1"></td>
+ <td bgcolor="#336666"><b><font face="Arial" size="2" color="#FFFFFF">6.2</b></font></td>
+ <td bgcolor="#336666"><img border="0" src="../../images/transdot.gif" width="10" height="1"></td>
+ <td bgcolor="#336666" width="100%"><strong><font size="2" color="#FFFFFF">
+ <span style="font-family: Arial">Network Management</span></font></strong></td>
+ <td width="9" bgcolor="#336666"> </td>
+ </tr>
+ <tr>
+ <td bgcolor="#669999" height="25" width="18"> </td>
+ <td bgcolor="#669999" height="25"><b>
+ <font face="Arial" size="2" color="#FFFFFF">6.2.5</font></b></td>
+ <td bgcolor="#669999"><img border="0" src="../../images/transdot.gif" width="10" height="1"></td>
+ <td bgcolor="#669999" height="25" width="100%"><strong>
+ <font face="Arial" size="2" color="#FFFFFF">Structure of management
+ information and MIBs</font></strong></td>
+ <td bgcolor="#669999" height="25" width="9"> </td>
+ </tr></table>
+
+<table border="0" cellpadding="0" cellspacing="0" width="95%" bordercolor="#111111">
+ <tr>
+ <td width="15"></td>
+ <td>
+
+ <font face="Arial" size="2"> A management information base (MIB) is
+ used to store the structured information representing network elements
+ and their attributes. The structure itself is defined in a standard
+ called the structure of management information (SMI), which defines
+ the data types that can be used to store an object, how those objects
+ are named, and how they are encoded for transmission over a network.
+ <img border="0" src="../../images/1.gif" align="absmiddle" width="12" height="12"></font><p>
+
+ <font face="Arial" size="2"> MIBs are highly structured depositories
+ for information about a device. Many standard MIBs exist, but more
+ MIBs that are proprietary exist to uniquely manage different vendor’s
+ devices. The original SMI MIB was categorized into eight different
+ groups, totaling 114 managed objects. More groups were added to define
+ MIB-II, which now replaces MIB-I.</font></p>
+ <p>
+
+ <font face="Arial" size="2">All managed objects in the SNMP
+ environment are arranged in a hierarchical or tree structure. The leaf
+ objects of the tree, which are the elements that appear at the bottom
+ of the diagram, are the actual managed objects. Each managed object
+ represents some resource, activity or related information that is to
+ be managed. A unique object identifier, which is a number in dot
+ notation, identifies each managed object. Each object identifier is
+ described using abstract syntax notation (ASN.1).
+ <img border="0" src="../../images/2.gif" align="absmiddle" width="12" height="12"></font></p>
+ <p>
+
+ <font face="Arial" size="2"> SNMP uses these object identifiers to
+ identify the MIB variables to retrieve or modify. Objects that are in
+ the public domain are described in MIBs introduced in Request for
+ Comments (RFCs). They are readily accessible at:
+ <a target="_blank" href="http://www.ietf.org">http://www.ietf.org</a></font></p>
+ <p>
+
+ <font face="Arial" size="2"> All vendors are encouraged to make their
+ MIB definitions known. Once an assigned enterprise value has been
+ given, the vendor is responsible for creating and maintaining
+ sub-trees.</font></p>
+ <p>
+
+ <font face="Arial" size="2"> </font>
+ </td>
+ </tr>
+ </table>
+
+</body>
+
+</html>
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