Internetwork Monitor
Viewing the Internetwork
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Icons in the internetwork view
Network nodes are represented in the internetwork view by icons on
segment rings.
These node icons fall into several general categories:
● Vendor icons show a two- or three-letter acronym identifying a specific
vendor as determined by the first part of the MAC address. The icons at
left represent equipment from HP, Sun Microsystems, and Cisco.
● A question mark icon is used when the vendor is unknown.
● An IP icon represents a host on an IP network that’s not being moni-
tored by a data source in the internetwork view (using address mode).
This type of icon is discussed further in figure 35 on page 173.
● “Pseudo-devices” are constructed in the MAC layer view to represent
interconnect devices. These devices are discussed further on page 233.
● An icon with eight arrows pointing outward from a center point repre-
sents the broadcast address—that is, a “sink” for receiving broadcast
traffic.
● An icon with three legs of an X and a text identifier represents a
multicast address—that is, a “sink” for receiving a particular kind of
multicast traffic.
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