Introducing the BlackDiamond^® 12804R carrier Ethernet switch for superior subscriber scaling and service guarantees. With the BlackDiamond 12804R, multidimensional Ethernet replaces best-effort Ethernet by delivering key advancements in carrier Ethernet technologies.

To help achieve a carrier Ethernet network with service control, subscriber scaling and prioritized bandwidth, Extreme Networks' multidimensional Ethernet enhances the network in three dimensions:

• Guaranteed services with three-tier Hierarchical-Quality of Service (H-QoS). Extreme Networks' greatly enhanced QoS capabilities support tens of thousands of subscribers per line card with eight QoS levels for each subscriber. This allows service providers to guarantee smooth delivery of latency-sensitive services such as IPTV and VoIP.
• An Ethernet cross connect for simple access to various content networks. This allows service providers to connect subscribers to a growing number of content networks using a Layer 2 approach that is both simple and cost-effective to deploy.
• Subscriber scaling for as many as 16 million Ethernet Virtual Private Networks (VPN). To scale the network for carriers, Extreme Networks implements standards-based MAC-in-MAC technology, a breakthrough capability utilizing standards-based Ethernet to vastly increase the number of Ethernet VPNs per network.