use RSTP to find the spanning tree. Determine Root switch and edge, root, designated, alternative and backup ports. Justify your answers. Assume MAC 00:00:00:AA:AA:0x, where x is number of witch, all links FastEthernet, priority as given in figure, only SW-4 has the default priority.

SW-1 BP 20480 Feo Feo Fe5 SW-0 BP 24576 Fe2 Fe1 Fel Fe2 Fez Fe4 Fe3 Fel Feo SW-2 BP 16384 Fe3 Fe2 SW-4 Feo Fel Fe1 Feb Feo SW-3 BP 28672 | Fe2 Fe3 Fe4 Fe2 Fe3 0! SW-1 BP 20480 Feo Feo Fe5 SW-0 BP 24576 Fe2 Fe1 Fel Fe2 Fez Fe4 Fe3 Fel Feo SW-2 BP 16384 Fe3 Fe2 SW-4 Feo Fel Fe1 Feb Feo SW-3 BP 28672 | Fe2 Fe3 Fe4 Fe2 Fe3 0