Cisco, Huawei, Nokia and Juniper are the top four vendors in the service provider edge router and carrier ethernet switch market, Dell’Oro Group said.

The report did not reveal the specific market share of these telecom equipment makers.

The service provider edge router and carrier ethernet switch market declined eight percent in the first half of 2018 compared to 2017.

“The confluence of tepid telecom spending, maturing 4G mobile backhaul deployments, and new product introductions have contributed to the reduction in demand for routers and switches,” said Shin Umeda, vice president at Dell’Oro Group.

Telecom operators in the US have pared down their spending well below historical levels as they evaluate new technologies and architectures for 5G backhaul. The network buildouts in China are slowing after years of growth.

Cisco Systems, Juniper Networks and Nokia have introduced major upgrades to their edge router portfolios.