I auto-discovered a network in CW Campus Manager with multiple sites connected through an ATM network . All neccessary seed devices and IP address ranges had been configured and there were about 350 results. What now happened is that some (not all) of the discovered devices have a "wrong" neighbor, so the topology view looks very funny. F.e., a network device with an IP address of 10.21.x.x/24 has an neighbor with IP address 10.28.x.x/24 and so on. Logging on to this devices and "show cdp neighbor" do not show these neighbors, but the right ones. Anything looks like being correct...
I reinitialised the Campus Database, but without success... What is happening here???
Then you should walk the cdpCacheTable from the CISCO-CDP-MIB for these switches. That will show you what Campus is actually seeing when it does its Data Collection. Make sure that the CDP neighbors as seen via SNMP are correct.
[toc:faq]The ProblemOn traditional switches whenever we have a trunk
interface we use the VLAN tag to demultiplex the VLANs. The switch needs
to determine which MAC Address table to look in for a forwarding
decision. To do this we require the switch to do...
[toc:faq]Introduction:Netdr is a tool available on a RSP720, Sup720 or
Sup32 that allows one to capture packets on the RP or SP inband. The
netdr command can be used to capture both Tx and Rx packets in the
software switching path. This is not a substitut...
IntroductionOSPF, being a link-state protocol, allows for every router
in the network to know of every link and OSPF speaker in the entire
network. From this picture each router independently runs the Shortest
Path First (SPF) algorithm to determine the b...