Key Considerations 571
Figure 311 Network Topology Example (1)
There are two subnets with two corresponding VLANs being used here: subnet 140.204.232.0 and 192.168.152.0. The Switch 4007 is a Layer 3 switch, routing between the two subnets.
If subnet 140.204.232.0 was discovered first and then the 192.168.152.0 subnet was discovered in a second network discovery operation, 3Com Network Director would incorrectly display the network topology as follows: