http://kb.linux-vs.org/api.php?action=feedcontributions&feedformat=atom&user=JjneelyLVSKB - User contributions [en]2026-04-30T07:32:41ZUser contributionsMediaWiki 1.26.2http://kb.linux-vs.org/wiki?title=Net-SNMP-LVS-Module&diff=5776Net-SNMP-LVS-Module2008-09-30T14:30:22Z<p>Jjneely: </p>
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<div>== GENERAL ==<br />
net-snmpd-lvs-module is a dynamicaly loadable shared object for SNMP to get the configuration and some statistical information from the Linux kernel with [[IPVS|IP virtual server]] support.<br />
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== INSTALLATION ==<br />
Get the [http://homes.tiscover.com/jrief/net-snmp-lvs-module/net-snmp-lvs-module-0.0.4.tar.gz source] (note: as of 13 July 2008 this URL returns 404) for this module. [http://www.loadbalancer.org/download/SNMP/net-snmp-lvs-module-0.0.4.tar.gz Alternate source location]. From http://www.linuxvirtualserver.org/software/ipvs.html download the the correct version of ipvsadm, for kernel 2.6 use ipvsadm-1.24 or later, for kernel 2.4 use ipvsadm-1.21. Extract '''ipvsadm-''version''.tar.gz''', build the library and copy the subtree '''libipvs''' into the module's working directory.<br />
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Check that the Linux kernel is available under '''/usr/src/linux'''. Install net-snmp and its development headers and libraries. Invoke '''make''', this should build '''lvs.so'''. Copy LVS-MIB.txt and OC-MIB.txt to '''/usr/share/snmp/mibs/'''.<br />
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Check that the new MIB is visible by invoking<br />
shell> snmptranslate -m LVS-MIB -On -IR lvsServiceEntry,<br />
this should return '''.1.3.6.1.4.1.8225.4711.18.1'''<br />
Copy '''lvs.so''' to '''/usr/lib/libnetsnmplvs.so''' and add the following line to<br />
'''/etc/snmp/snmpd.conf''':<br />
dlmod lvs /usr/lib/libnetsnmplvs.so<br />
Restart your snmpd.<br />
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Try if everything works invoking:<br />
shell> snmpwalk -c public -v 2c -m LVS-MIB localhost 1.3.6.1.4.1.8225.4711<br />
LVS-MIB::lvsVersion.0 = STRING: "1.2.0"<br />
LVS-MIB::lvsNumServices.0 = INTEGER: 2<br />
LVS-MIB::lvsHashTableSize.0 = INTEGER: 4096<br />
LVS-MIB::lvsTcpTimeOut.0 = INTEGER: 900<br />
LVS-MIB::lvsTcpFinTimeOut.0 = INTEGER: 120<br />
LVS-MIB::lvsUdpTimeOut.0 = INTEGER: 300<br />
LVS-MIB::lvsDaemonState.0 = INTEGER: none(0)<br />
...<br />
<br />
In case you want to add additional snmp-values to your MIB:<br />
Set export MIBS=ALL and create skeleton with<br />
shell> mib2c -c mib2c.interate.conf lvsRealTable<br />
or<br />
shell> mib2c -c mib2c.interate.conf lvsServiceTable<br />
this should create a file '''lvsRealTable.c''' and/or '''lvsServiceTable.c'''.<br />
Use the generated code as a template for '''lvs.c''' and populate the missing parts.<br />
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== CREDITS ==<br />
The code for this module currently is maintained by Jacob Rief. This code is based on ucd-snmpd-lvs written by Romeo Benzoni in 2002 and never modified since. As that code did not compile with the newer net-snmp headers, I decided to rewrite the complete code. The only unchanged parts from the ucd-snmpd-lvs project are LVS-MIB.txt and OC-MIB.txt.<br />
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== Extrenal Links ==<br />
Official site: http://homes.tiscover.com/jrief/net-snmp-lvs-module/ (unavailable as of13 July 2008)<br />
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[[Category:LVS Software]]</div>Jjneely