The Irish incumbent said that the remaining cabinets will be upgraded by the end of this month.
The move is expected to provide approximately 70% of the 700,000 homes and businesses covered by its network with download speeds of 70Mbps-100Mbps.
"We continue to work closely with our global vendors, such as Huawei, to explore further hugely exciting technological developments in this area such as G.Fast, which offers the potential of future step changes in both upload and download broadband speeds," said Carolan Lennon, managing director of Eircom Wholesale.
Eircom is among the first telecoms operators to deploy VDSL2 vectoring.
"New technologies such as vectoring and G.Fast can help operators efficiently reuse existing infrastructure and quickly implement superfast broadband strategies," said You Yiyong, president of Huawei's access network product line.
To learn more about vectoring, read here.