More than two years after first announcing successful field trials of XGS-PON technology in two cities (Atlanta and Dallas), AT&T has gone live with high-speed broadband services delivered by the new generation access technology in dozens of US markets, including Atlanta, Chicago, Dallas/Fort Worth and Detroit.
AT&T says XGS-PON, an increasingly popular 10 GPON technology that can co-exist with existing GPON deployments, is now supporting services of up to 1 Gbit/s in 40 cities (see list below) and could ultimately be used to offer services of up to 10 Gbit/s.
The commercial deployment, currently limited in size in each market, comes more than two years after the operator announced it had completed successful trials of the technology in a network architecture that included a virtualized BNG (broadband network gateway) and managed by Open Source Access Manager Hardware Abstraction (OSAM-HA) software (previously referred to as VOLTHA – Virtual OLT Hardware Abstraction).
So are these commercial deployments based on the same model, with virtualized elements? AT&T is being coy. "AT&T continues to work with open communities such as ONF, ONAP and OCP to drive innovation, TTM [time to market] and cost improvements as we build next generation networks," it stated in an emailed response to questions.
And which technology partners are involved in the commercial deployments? "AT&T is utilizing multiple XGS-PON platforms that we have tested and certified over the past several years," noted the AT&T spokesman.
Today’s access network architecture is under mounting pressure due to a continued surge in the number of connected devices, a proliferation of bandwidth-intensive customer applications and dramatic shifts in usage patterns related to the pandemic, such as work-from-home and e-learning.
Learn why now is the right time for cable operators to build greenfield networks or expand their existing networks with 10G PON, arming customers with high-speed symmetrical broadband. Gain a clear understanding of the drivers impacting the access network and the various approaches being considered to deliver higher speed services. Plus, find out the best practices that operators are employing as they leverage the latest in passive optical technology to future-proof their networks.
Topics to be covered include:
Node + 0 (Fiber Deep)
DOCSIS 3.1, DOCSIS 4.0 (FDX/ESD)
FTTP and 10G PON
Provisioning 10G PON within a DOCSIS B/OSS environment