The 10-Gigabit Ethernet (10GbE) metro ring, which comprises the BigIron RX-4 and FastIron Edge X Series 424-HF switches, was installed as KCN's core network to link together the main connection points. Customer connection points are connected to the ring, which in turn is linked to switches installed at main connection points. Currently, BigIron RX-4 switches, and FastIron Edge X Series switches are in operation.
"We selected Foundry to deliver our triple-play services because of their high-performance capabilities and extremely resilient Metro Ring Protocol technology," explains Masaru Arimoto, Communication System Section, Communication Technology Department, Technology Division for KCN. "In the past, it was not unusual to have service downtime following unexpected technical difficulties where cable connections served a large area or service interruptions following maintenance work. However, Foundry products prevent such problems as they are equipped with MRP. Since the launch of our service, we have not had one incident where a service suspension occurred from cable disconnections."












