layer 2


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Related to layer 2: layer 2 switch, Layer 2 Tunneling Protocol

layer 2

layer 2

In networking, the communications protocol that contains the physical address of a client or server station. It is called the "data link layer" or "MAC layer" and contains the address inspected by a bridge or switch. Layer 2 processing is faster than layer 3 processing, because less analysis of the packet is required. See MAC layer and OSI.
References in periodicals archive ?
Scaling to 15,000 simultaneous Layer 2 and Layer 3 services
Layer 2 service scaling including Point-to-Point EoMPLS Pseudowires, VPLS, and H-VPLS
The Datacryptor range of hardware encryptors provides strong and FIPS 140-2 certified security at Layer 2 and Layer 3 applications including leased line Link, Frame Relay, SONET, IP networks, and Ethernet.
True redundancy at Layer 2 and Layer 3 adds tremendous value for carrier networks at the multi-service edge," commented Mike Kazban, vice president of marketing and services at Vivace Networks.
Whereas, the FastIron 4802 targets enterprise and Metro access deployments that need advanced Layer 2 or Layer 3 features, superior high availability and serviceability, and industry leading scalability.
Foundry's Layer 2 Packet Over SONET (POS) allows service providers and communication carriers to leverage their existing SONET investment along with new Gigabit Ethernet infrastructure to provide secure Metro network services such as VLAN-based Transparent LAN Services and VPNs.
Foundry's RSTP provides seamless Layer 2 failover by instantly switching over to a secondary link if the primary link fails.
We look forward to continuing our relationship with Layer 2 by providing the technology that will assist it in its efforts to keep its services prices competitive, capably delivered, and on the leading edge.
Foundry's FastIron II Plus GC commanded first place in the Layer 2 modular/chassis-based and Layer 3 IP categories.
The ServerIron400 and ServerIron800 integrated Layer 2-7 switches, with their rich set of Layer 2 switching, Layer 3 routing and Layer 4-7 application level switching features, enable e-commerce and Internet Service Providers to build sophisticated, high capacity, highly available and function-rich web presence with lower equipment cost, reduced management overhead, reduced network latency, streamlined design and ultimately higher reliability.
Broadcom's new switch chip delivers wire-speed Layer 2 forwarding, Layer 3 Internet Protocol (IP) switching and Layer 2 through 7 filtering and traffic classification, as well as four Classifications of Service on every port.
Customers with existing SuperStack II Switch 9000 Layer 2 switches may upgrade to Layer 3 switches via a hardware exchange at no charge under the terms of 3Com's Technology Migration Program.