layer 3


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Related to layer 3: Layer 3 switch, Layer 5

layer 3

layer 3

In networking, the communications protocol that contains the logical address of a client or server station. It is called the "network layer" and contains the address (IP, IPX, etc.) inspected by a router that forwards it through the network. Layer 3 contains a type field so that traffic can be prioritized and forwarded based on message type as well as network destination. Since layer 3 provides more filtering capabilities, it also adds more overhead than layer 2 processing. See layer 3 switch, router and OSI.
References in periodicals archive ?
The results observed during this effort clearly demonstrated the Cisco 7600 Series to be a significantly scalable Ethernet services edge router for Layer 2 and Layer 3 services," said Dr.
Many switches typically provide wire-speed Layer 2 and wire-speed Layer 3 capabilities at a relatively low cost-per-port basis.
Thales offers a complete range of Layer 1, Layer 2, and Layer 3 solutions.
Designed primarily for cost-sensitive small and medium business environments, Allied Telesyn offers a Gigabit switch solution for any requirement: the unmanaged desktop GS900 series, the workgroup and departmental 9424T, and the 9900 Layer 3 series with advanced QoS, for core and server farm aggregation.
Offering a full range of Layer 2 and Layer 3 redundancy capabilities to prevent service downtime and data loss, the Viva5100 also introduces several Layer 3 industry firsts:
is a leading provider of high-performance enterprise and service provider switching, routing and Web traffic management solutions including Layer 2/3 LAN switches, Layer 3 Backbone switches, Layer 4-7 Web switches and Metro Routers.
The survey also found that Foundry has achieved the number one position in Layer 3 Modular 1 Gbps Ethernet switching with 19.
Nasdaq:FDRY) is a leading provider of high-performance enterprise and service provider switching, routing and Web traffic management solutions including Layer 2/3 LAN switches, Layer 3 Backbone switches, Layer 4 - 7 Web switches and Internet routers.
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.
Chunghwa Telecom has deployed Foundry's NetIron Internet routers in the backbone, its industry-leading BigIron Layer 3 switches as the traffic aggregation switches, and its new 3rd generation ASIC-based FastIron 4802 Layer 2/3 switches at the network access layer to provide superior service availability and performance in its Taipei IDC.
By integrating advanced Layer 2 and Layer 3 switching including IP, IPX, AppleTalk, OSPF, BGP4, multicast and wire-speed input/output Access Control Lists in a compact form factor with hot-swappable power supplies and mini-GBIC interfaces, the FastIron 4802 heralds a new category of stackable switches for enterprises and service providers that combine serviceability and scalability of high-end modular switches with the density and price/performance of stackable switches.
High availability Layer 3 upgrade options, including support for complete switch redundancy, protect the investment by converting the FastIron III Layer 2/3 switch into a Layer 3 switch that includes features such as OSPF link redundancy and load sharing.