On Thu, 18 Jul 2013 17:53:47 -0300 Bruno Galindro da Costa bruno.galindro@gmail.com wrote:
To temporaly "solve" this issue, I've enabled LLDP on all switches. But, this issue accours with other netboxes that doesn't have lldpprotocol (like printers and some wireless devices). I've found on navtopology's debug log these errors that maybe point us to a solution:
DEBUG:nav.topology.vlan:could not find reverse edge for (Netbox: y.x.250.134, <Netbox: y.x.204.217>, <Interface: 5:18 at y.x.250.134>)
What meaning these messages?
This message means that the topology detector has found out from y.x.250.134 that it's interface 5:18 is connected to y.x.204.217. It has, however, not found any information from y.x.204.217 that it is connected back to y.x.250.134.
This is typically the case with servers and other devices that don't talk SNMP. It is not a problem, unless y.x.204.217 is an SNMP-enabled device that has switch forwarding tables or LLDP/CDP support.