I've got a weird problem. I've run mrtg (and rtg) against Junipers routers, cisco switches, and several other network device for many years. I generate my own mrtg config files, create my own rrd files, and have custom graphing routines. But I've never run into this problem.<br>
<br>We just add some cisco ios switches to our network. They're configured with several "unrouted vlan". I can usually traffic monitor unrouted vlans without problem. But on these switches, the unrouted vlans have ifInOctet counters but no ifOutOctet counters.<br>
<br>Example: Look at ifindex 290 and 291. I included 288 and 289 for reference.<br>ifindex:<br>IF-MIB::ifIndex.288 = INTEGER: 288<br>IF-MIB::ifIndex.289 = INTEGER: 289<br>IF-MIB::ifIndex.290 = INTEGER: 290<br>IF-MIB::ifIndex.291 = INTEGER: 291<br>
<br>description<br>IF-MIB::ifDescr.288 = STRING: FastEthernet7/47<br>IF-MIB::ifDescr.289 = STRING: FastEthernet7/48<br>IF-MIB::ifDescr.290 = STRING: unrouted VLAN 981<br>IF-MIB::ifDescr.291 = STRING: unrouted VLAN 982<br>
<br>ifInOctets:<br>IF-MIB::ifInOctets.288 = Counter32: 0<br>IF-MIB::ifInOctets.289 = Counter32: 0<br>IF-MIB::ifInOctets.290 = Counter32: 2910395469<br>IF-MIB::ifInOctets.291 = Counter32: 130332220<br><br>ifOutOctets:<br>IF-MIB::ifOutOctets.288 = Counter32: 0<br>
IF-MIB::ifOutOctets.289 = Counter32: 0<br>That's it.... there are no more ifoutoctet entries.....<br><br>And of course mrtg poller is complaining that the ifOutOctets does not exist......<br clear="all"> <br>Have anyone ever seen this? <br>
<br>The only fix I see is to change the Target line for these entries to query the ifInOctets twice. <br><br>Weird,<br>Gene Titus<br><br>-- <br>Gene Titus<br>Sr Operating System Specialist<br>The Office of Telecommunication Services<br>
The University of Texas at Austin<br>