layer 3


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Related to layer 3: Layer 3 switch, Layer 5

layer 3

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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 model.
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References in periodicals archive ?
As with Layer 3, it looks for suspect user or account behavior, but it also offers the benefit of looking across channels and products and correlating alerts and activities for each user, account or entity.
Load balancers use Layer 3 and 4 information to make effective routing decisions between server clusters.
Let's play the networking technology name game: If Layer 2 switching is fast, and Layer 3 switching is fast and scalable, then it stands to reason that Layer 4 switching must be the next big thing in switching.