Gigabit optical interface can operate in two modes enforcement and auto-negotiation. 802.3 specification only supports gigabit optical port rate 1000M to support full-duplex and half-duplex duplex mode.

Infonetics latest "VDSL, G.Fast and next-generation FTTH strategy and supplier Leadership Survey" survey of 20 globally in fixed broadband services for telecom operators to think about the next generation of broadband technology. The survey found that 40 percent of respondents operators stand will introduce Gigabit broadband service in 2017, and this year compared to only 15%.