User`s guide

Internetwork Monitor
Interpreting the Internetwork View
234 5967–9446
In this case, Internetwork Monitor assumes that nodes R1 and R2 are
routers. The data report for intrasegment traffic will show entries for
A↔R1 and C↔R2; the segment-to-segment traffic will include the A↔B
traffic in the S1↔S2 segment pair’s data.
Figure 50 illustrates this example.
Figure 50 Handling Routed Traffic
S1
S2
A
B
C
D
Corresponding MAC
addresses for
intersegment end-
point pairs A↔C,
A↔D, and B↔D
reveal routers R1
and R2.
End-to-end traffic
(Network layer view),
with nodes A – D
assigned to segments
S1 and S2
S1
S2
A
B
C
D
R2
R1
Intrasegment:
S1: A↔B, A↔R1,
B↔R1
S2: C↔R2, D↔R2
Segment-to-Segment:
S1↔S2 =
A↔C + A↔D +
B↔D
Network-Layer
End Points MAC-Layer End Points
A↔B
(intrasegment pair: not relevant)
A↔CA↔R1, C↔R2
A↔DA↔R1, D↔R2
B↔DB↔R1, D↔R2
MAC layer view of the
routed traffic