User`s guide

Internetwork Monitor
Interpreting the Internetwork View
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Data Integration, Network Layer View
To construct the Network layer view, Internetwork Monitor collates the
network-layer end-to-end traffic reports (conversations) and checks the
node-to-segment assignments.
Because the internetwork view is based on network-layer conversations,
any node running more than one protocol stack will appear multiple
times in the view (subject to thresholding and filtering). For example, if
you have a node that uses both TCP/IP and IPX, that node will appear
twice in the view (once for each protocol/network address).
The data report for the network-layer view shows node-to-node traffic
arranged into inter- and intra-segment groups.