RE: China2 Apr 2020 13:16
Bertram, the chances are there is a fair amount of Huawei NEs in the BT network. I was working for Fujitsu at the BT Martlesham labs from 2004 to 2008 during the BT21CN testing prior to rollout. Huawei was on-site in the labs, but they were the secondary or back-up vendors during network testing (with equipment for covering both the optical and access parts of the network). Huawei didn't do core routing on BT21CN. Fujitsu was the lead supplier for the copper and fibre MSANs that provided connectivity to customer CPE. BT probably dealt with Huawei as they were cheaper, so it probably helped them to negotiate better deals when buying equipment from the other vendors and the idea was there was no difference with traffic on the BT21CN network whether it was routed through Fujitsu or Huawei equipment, although the underlying MSAN technology and OAMP were totally different. BT had 2 vendors involved with each part of the network so if the lead vendor had issues during product development they had a back-up vendor they could buy kit from. I don't know what the final network roll-out looked like, but during lab testing it sounded like Fujitsu were going to supply around 75% of the access equipment and Huawei 25%.