Suppose, in Figure 3.4, that a new link has been added, connecting switch 3 port 1 (where G is now) and switch 1 port 0 (where D is now); neither switch is "informed" of this link. Furthermore, switch 3 mistakenly thinks that host B is reached via port 1.
(a) What happens if host A attempts to send to host B, using datagram forwarding?
(b) What happens if host A attempts to connect to host B, using the virtual circuit setup mechanism discussed in the text?