Scenario 1: Trunking and DTP

This scenario is built around a network of switches connected by trunking links. You need to think about how DTP operates and how trunks are negotiated (or not) between switches. Consider the network shown in Figure 19-1 and answer the questions that follow. Assume that all switches shown support DTP.

Figure 19-1. Diagram for Scenario 1

1.	What is the mode of the link between Catalyst A and Catalyst B?
2.	Suppose that the network administrator types these commands for interface GigabitEthernet 0/1 on Catalyst B: Switch(config)# interface gigabitethernet 0/1 Switch(config-if)# switchport mode trunk Switch(config-if)# switchport nonegotiate What will the link mode be now?
3.	Catalyst B has been given the command no switchport nonegotiate for interface GigabitEthernet 0/1. What is the link mode now?
4.	What is the mode of the link between Catalyst A and Catalyst C?
5.	Assume that all links between Catalyst switches are in trunking mode, transporting VLANs 1 through 1005. Can PC-2 ping PC-4?
6.	Suppose that PC-1 begins to generate a broadcast storm. Where would the effects of this storm be experienced in this network? Consider both devices and links. Will PC-4 receive the broadcasts?