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L2 nHop Network Topology

L2 n Hop (Network Explorer –> Topology –> L2 n Hop) shows devices that can be reached from a selected starting device through a chosen number of Level 2 (actually a hybrid of L1 and L2) connections.

  1. In the left panel, click L2 n Hop.
  2. In the left panel, click the row containing the starting device.
  3. In the L2 n Hop / L2 Reach-ability dialog, select a View (i.e., connection type: CDP, Serial Links, Switch Forwarding or Aggregate).
  4. Select a Hop Count (the view will show devices reachable in this number of hops or less).
  5. Click OK.



Note: Setting Hop Count to All stops hops at L3 devices.

In the resulting graph, the name of the starting device is highlighted in green. Devices that cannot be reached, or that are farther away than the Hop Count are not shown in the resulting view.
— To modify the graph (View, Hop Count and other factors): Click Refine View above the graph.
Cisco Nexus switches and their virtual device contexts (VDCs) will appear in this View.