This IDC study reviews the worldwide service provider router revenue for 3Q17.
"The most remarkable thing about the robust carrier routing market in 3Q17 was the continued strong resurgence in the edge routing segment, which IDC attributes to the introduction of technologies such as segment routing and EVPN on provider edge routing platforms by Huawei and Cisco. These technologies simplify edge routing, enable the service provider to exercise software-defined control over the infrastructure and drive greater agility and flexibility in the provisioning of cloud connectivity services." — Rajesh Ghai, research director, Carrier Network Infrastructure at IDC
Carrier IP Network Infrastructure and Virtualization , Carrier Network Infrastructure