Machines today typically have multiple network interfaces and are increasingly mobile. Since IP is restricted to forwarding on spanning trees, it is difficult for IP to take advantage of more than one interface or adapt to the changes produced by rapid mobility. CCN packets cannot loop so CCN can take full advantage of mul- tiple interfaces.
I am unaware of IP's restriction on forwarding on spanning trees. Can anyone elucidate on this point and how this restriction seems to not allow IP to take advantage of multiple interfaces on a single machine.