Today’s blog is about several new fast broadband deployments. It seems that every year that vendors are developing new technologies that will speed up our networks and broadband connections.
The first was an announcement from AT&T that the company completed a live test of a 1.6 terabit fiber connection on a route between Newark and Philadelphia. The connection was tested over AT&T’s long-haul network that was also running 100 Gbps and 400 Gbps links.
The fast link was created by combining two 800 Gbps links created by white hardware operating with the Broadcom Jericho3 packet processor chip. The two links were combined using Ciena’s WaveLogic 6 Extreme cohere optical transponder. At the two ends of the link, the signal was processed by 800 G DR8 pluggable transceivers from Coherent which created the cross-connectivity to communicate with other packet and optical technologies.
This new link is four times faster than the 400 Gbps lasers that are being installed nationwide as the newest iteration of ling-haul and middle-mile networks – replacing the 100 Gbps lasers that were the standard for the last decade.
Lumen announced that the company successfully created a 1.2 terabyte connection connection on an 1,800 mile long link. The link was accomplished on what Lumen calls its ultra-low-loss (ULL) network. The test used Ciena’s WaveLogic 6 Extreme technology and Ciena’s Waveserver platform along with Juniper 800 Gbps routers.
The AT&T news release of the test quoted Mike Satterlee, VP of Network Infrastructure and Services as saying that these tests are vital for AT&T to keep up with future demand. He was quoted as saying that AT&T expected that overall long-haul network traffic will be doubling by 2028.
The other groundbreaking speed trial was conducted by T-Mobile. The company was able to achieve a 6.3 Gbps connection on a Samsung Galaxy S25 cell phone. The phone was using the Snapdragon X80 5G modem-RF system. The 6.3 Gbps test was achieved in the lab, and the speed achieved on a real-world 5G network was 4.3 Gbps. A second test achieved the same speeds using a non-commercial handset that used Qualcomm’s X85 5G Modem.
The network test was conducted using Nokia’s 5G radio access RAN. The sped was achieved by aggregating 2.5 GHz, AWS, and 600 MHz spectrum. The test was not as much about speed as it was the ability to combine multiple frequencies to create a high-bandwidth path.
These trials are proof that carriers are constantly pushing vendors to develop the next-generation of network gear that brings greater capacity. Middle-mile and long haul routes are under strain from unexpected traffic from AI data centers. But long-haul network operators are reporting a big uptick in requests for 100 gigabit data connections across markets and unrelated to AI.