layer 4-7

(redirected from L4-7)

layer 4-7

The two layers in a network packet that identify its content (for details about layers, see TCP/IP and OSI model). The bottom layers 1, 2 and 3 are the protocols that move a network packet from source to destination. Layers 4 and 7 identify the application that created the packets as well as the specifics of the request. For example, inspecting layer 4 can identify HTTP traffic (Web traffic), but inspecting layer 7 can determine what the HTTP request is for (see Web switch). See layer 4 switch and well-known port.


TCP/IP SWITCHING/ROUTING DECISIONSLayer and      ForwardingProtocol       DecisionInspected      Based on

  2 - Ethernet   MAC address

  3 - IP         Network address
  3 - IP         Service quality

  4 - TCP/UDP    Traffic type
      socket     (HTTP, FTP, etc.)

  7 - HTTP       HTTP request type
References in periodicals archive ?
In those workloads, L4-7 traffic processing needs are dramatically increasing across a range of applications such as load balancing, cyber security, traffic management, VXLAN classification, user based QoE, service-aware networking and more.
United States : Tilera Chooses Procera Networks NAVL Engine for SDN and NFV Architectures
and cloud platforms that enable dynamic L4-7 security and application services
A10 Networks announces aCloud Services Architecture
OpenArchitect, the control plane management software for silicon switch fabrics, delivers comprehensive L3 routing capabilities, L4-7 filtering, plus Class-of-Service features.
ZNYX Networks Gigabit Ethernet switches now shipping
Total L2-3 L4-7 Managed / Unmanaged Ethernet Switch Shipments (Ports in Thousands)
Reportlinker Adds 4Q08 Ethernet Switch Market Analysis Report
We continue to extend the breadth of our L4-7 protocol coverage by supporting testing for malicious traffic such as DDoS Attacks," said Roy Chua, director of product marketing for Spirent Communications.
Spirent announces enhanced security testing to protect networks from attacks
Key Topics Covered: - Methodology - List of Tables: (Markets Examined Include) - L2-3 L4-7 Managed / Unmanaged Ethernet Switch - L2-3 Managed Ethernet Switch - L2 Managed Ethernet Switch - L3 Managed Ethernet Switch - FE L2-3 Managed Ethernet Switch - FE L2 Managed Ethernet Switch - FE L3 Managed Ethernet Switch - GE L2-3 Managed Ethernet Switch - GE L2 Managed Ethernet Switch - GE L3 Managed Ethernet Switch - L4-7 Ethernet Switch - Total Unmanaged Ethernet Switch - Unmanaged FE Switch
A 2Q08 Ethernet Switch Market Analysis: Providing a List of Tables With Highly Segmented Data by OSI Layer, Equipment Configuration and Speed
The E370LX replaces the E350GX as Coyote Point's intelligent, high performance L4-7 traffic load balancer targeted at mid-market applications for medium and small enterprise.
Canada : Coyote Point System's E370LX Debuts as the Fastest, Most Advanced Mid-Range Load Balancer
Wu was the technical visionary behind ArrowPoint's innovative intelligent L4-7 load balancing switches, optimized for e-commerce and content delivery capabilities.
Acopia Networks Founder and Chairman of the Board, Cheng Wu, to Present at Bank of America, 36th Annual Investment Conference; Will Discuss Acopia's Present and Future Outlook, As Well As Provide General Overview On the File Virtualization Marketplace
The Aptixia family consists of the IxNetwork(TM) application for L2-3 testing, the IxLoad(TM) application for L4-7 testing, and the IxScriptMate(TM) application for pre-built L2-7 tests.
Ixia Announces Aptixia Family of Test Applications; Aptixia Delivers the Industry's Most Comprehensive L2-7 Test Functionality in Conjunction with Ixia's Optixia Test Platform
Integrated data/control plane traffic generation and analysis for IPv4/v6 routing protocols, L2/L3 VPN, multicast, and L4-7 testing
Ixia Announces Multi-Services Modules for Testing Next Generation SONET Networks; Ixia Provides a Powerful Solution for Testing Migration of Ethernet into the WAN
The report, "10 GbE Emerges as GigE Dominates Switch Market" (#IN0501816LN), covers the worldwide Layer 2/3 managed Ethernet switch, L2 unmanaged Ethernet switch, and L4-7 Ethernet switch markets.
In-Stat Reports Switch Market Growth Strong as Technology Transitions
IxLoad is capable of emulating various L4-7 protocols like HTTP, FTP, Email, and Streaming Video and Audio traffic so that Carriers and Service Providers can create real-world mixes of valid user traffic (HTTP, Email, etc.
Ixia Helps Carriers and Service Providers Defend IP Networks from Security Attacks with New Denial of Service Test Suite
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