Extreme Networks is adding advanced traffic management capabilities to its Metro Ethernet Service Platform, including Hierarchical-Virtual Private LAN Services (H-VPLS) and improved resiliency capabilities, such as Ethernet Automatic Protection Switching version two (EAPS v2). The fail-over performance of EAPS v2 has been improved to provide recovery in less than 50ms when a cable cut or equipment failure causes in interruption on an Ethernet ring. EAPS v2 now supports dual attached rings, as well as sub-tended rings.
Extreme Networks said metro service providers to date have been connecting Ethernet access networks together with Layer 3 MPLS routers. Its solution is to leverage Layer 2 MPLS for this function. Extreme Networks also noted its ability to scale metro networks beyond the limitation of 4K VLANs using a VMAN or “QinQ” mechanism for encapsulating the subscriber’s VLAN tag(s) inside a provider assigned tag. http://www.extremenetworks.com/
