Suppose, in Figure 3.2, 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?

Figure 3.2)

Host C 3 Host D 2 Host A Switch 1 3, Host E 2 0 Switch 2 1 Host G. 2 Host H Switch 3 3 Host F Host B