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diff --git a/ASNMP/asnmp-overview.html b/ASNMP/asnmp-overview.html deleted file mode 100644 index 6c119ba1323..00000000000 --- a/ASNMP/asnmp-overview.html +++ /dev/null @@ -1,133 +0,0 @@ -<html> -<! by Michael R. MacFaden mrm@cisco.com > -<title>ASNMP Overview</title> - -<h1>ASNMP Overview</h1> - -<p>The Another SNMP class library is an Object Oriented programming -toolkit for using IETF standard network management protocols in the -Internet. The SNMP protocol is perhaps the most ubiquitous management -protocol running on most very device or application deployed in the -modern network today. - -<p>ASNMP is targeted to programmers that want to write command and -control (C&C) applications. C&C Applications communicate with -a variety of objects: -<sl> -<li>network devices such as ATM switches, Internet routers, -LAN bridges and LAN printers -<li>Routing protocols such as OSPF -<li>database servers such as ORACLE or Informix. - -<p>ASNMP Version 1 implements a blocking SNMP Version 1 with some -Version 2c additions (Counter32, Counter64 SMI values). See -SNMP Version 1 as defined in the IETF Request for Comments (RFC) -<sl> -<li>1155 -<li>1157 -<li>1213 -<li>1215 -<sl> -<p>Also see the RFC 1902 spec for new SMI datatypes such as Counter64. - -<p>ASNMP is built using the CMU SNMP and HP SNMP++ as the base -classes then modified for use in the ACE framework. About 10% of the API -changed during code rework. See ASNMP/asnmp/ChangeLog for details. - -<p>ASNMP can be used for either manager applications or agent applications. -The <i>Snmp</i> class contains the interface for manager applications. The -<i>sagent</i> class contains the interface for agent applications. A -trivial agent that implements the mib II system group per rfc1213 is -in the agents/ directory. - -<h2>Class Heirarchy</h2> - -<pre> -UdpTarget - Defines a collection of attributes needed to define a - communications session with an SNMP agent - This includes network address, response timeout, etc. - -Snmp - A logical session between NM app and agent. Provides the - commands get, get_next, trap. Manages transactions between app and - server. - -Pdu - A container object that represents an SNMP Protocol Data Unit. - A Pdu contains a command (get,getnext,trap) Varbind List list, - a community string. - -Vb - Aka Varbind or Variable Binding. A pdu can have zero, - one or more of these. A Vb consists of an Oid to identify - the variable and a value corresponding to one of the SMI values. - The oid/value binding is defined in a MIB file (RFC 1155) - Agents hava a MIB file that defines what each variable means. - Most agents implement MIB II as defined in RFC 1156. - -<p>The Structure of Managment Information (SMI) datatypes -and related types are: -<ul> -<li>Address->IpAddress->UdpAddress as well as MAC, IPX, IPXSOCK, Netbios -<li>Unsigned Integer -<li>Gauge32 -<li>Integer32 -<li>Counter32 -<li>Counter64 -<li>TimeTicks -<li>OctetStr -<li>Oid -</ul> - -<hr> - -<h2>Sample program</h2> -<p>A sample Object to get obtain an Agent's Systems' Description -given an network address and a community string. - -class system_id { - public: - system_id(UdpAddress addr, OctetStr read_community_string) - { - UdpTarget tgt; - Snmp snmp; - Pdu pdu; - Oid oid("1.3.6.1.2.1.1.1.0"); - Vb vb(oid); - tgt.set_address(addr); - tgt.set_read_community(read_community_string); - pdu += vb; - - if (snmp.get(pdu, tgt) == 0) { - pdu.get_vb(vb, 0); - vb.get_value(desc_); - } - else - desc_ = "<error - no value set>" - } - - int get_description(OctetStr& description) { - description = desc_; - return 0; - } - -private: - OctetStr desc_; -}; - -<h1>Future Directions</h1> -<p>Here are some areas for further work -<sl> -<li>Add OO mib parser and mib code generator -<li>Collapse the CMU/HP code into one set of classes. -<li>Add full V2c support. -<li>Size/Speed improvements -</sl> - -<h1>References</h1> -<ul> -<li><a href="http://www.ece.ucdavis.edu/ucd-snmp/">UCD SNMP</a> -<li><a href="news://comp.protocols.snmp">comp.protocols.snmp</a> -<li><a href="http://snmp.cs.utwente.nl">University of Twente</a> -<li><a href="http://www.cis.ohio-state.edu/hypertext/faq/bngusenet/comp/protocols/snmp/top.html">SNMP FAQ</a> -<li><a href="http://www.adventnet.com/">Java based SNMP tools from Ardent</a> -<li><a href="http://misa.zurich.ibm.com/Webbin/">IBM SNMP/CMIP research</a> -</ul> -</html> |