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Spanning tree, as we know, is an extremely useful function of a network. However, equally so, in the hands of an inexperience engineer, or with someone adding network devices or 802.1q capable network cards to the network in an uncontrolled manner, it can be the worst thing ever. It would be useful to have a map view of…
I'm trying to figure out why my LLDP data isn't being utilized by NPM. I have Cisco L3 switches (Catalyst 3560E) with one or more rings of Moxa L2 switches (EDS-510A-3SFP) connected. LLDP is enabled on all L3 and L2 switches. The NPM Network Topology on the node details page for any Moxa switch shows only connections to…
Hello! I wasn't entirely sure where to put this question/problem, but from what I've gathered, SAM handles polling network topology for WMI monitored devices so I'm going to start here. I have six servers in far off places that I'm trying to 'map' in Network Atlas. I wasn't involved in installing them, and I'm trying to go…
As a best practice, when I'm troubleshooting network issues, I typically start at layer 1 and work my way up the stack. If you've been managing networks for very long you've probably learned that the first three steps to troubleshooting a network issue are "check the cable, check the cable, check the cable..". Once you've…
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