User`s guide

Internetwork Monitor
Viewing the Internetwork
5967–9446 177
To view traffic within and across segments
● Choose MAC layer from the toolbar’s view type
pop-up.
or
1 Select Properties➤View Properties…
2 Change the View Type property to MAC layer.
By default, the Internetwork Monitor shows traffic at the MAC layer,
which lets you focus on how traffic gets from one segment to another.
The MAC layer view uses the same end-to-end traffic data as the Net-
work layer view, but it constructs a graphical display that preserves
MAC layer activity within and between segments. This view reveals
routers connecting the segments in the view, and accounts for non-routed
intersegment traffic by creating “pseudo-devices.” (For further informa-
tion on this process, refer to page 227.)
Even though the view represents the MAC layer, the internetwork view
is based on network-layer conversations. Consequently, any node running
more than one protocol stack will appear multiple times in the view (sub-
ject 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).
Figure 36 on page 179 shows sample Network layer, MAC layer, and Seg-
ment views for the same network traffic.
See Also “Color and Line Styles” on page 187.
“To set the threshold” on page 195.
“To filter data by protocol” on page 197.
“Interpreting the Internetwork View” on page 227.