Most configuration tasks can be done on the EtherChannel interface instead of on each
individual port, ensuring configuration consistency throughout the links.When STP blocks one of the redundant links, it blocks the entire
EtherChannel.When several
EtherChannel bundles exist between two switches, STP may block one of the bundles to
prevent switching loops.o EtherChannel relies on existing switch ports.Where there is only
one EtherChannel link, all physical links in the EtherChannel are active because STP sees only
one (logical) link.