US cable technology firm Arris is in discussions to acquire a slice of the networking business from Broadcom’s Brocade Communications, and is willing to pay a sum exceeding $1 billion, according to Reuters. Could this be Arris admitting that the future of the set top is bleak, and wireless is the way forward? We think so, and so does the Arris CFO. Arris has been wanting to get into wireless for a while now – a business venture which would almost complete its portfolio and leave it well placed to battle in this field with fierce rival Cisco, who exited the set top business last year with a $600 million sale to Technicolor. But Cisco kept the profitable parts of…