layer 4 switch

layer 4 switch

A network device that integrates routing and switching by forwarding traffic at layer 2 speed using layer 4 and layer 3 information. When packets are inspected at layer 4, the sockets can be analyzed and decisions can be made based on the type of application being serviced. See layer 4-7, layer 3 switch and Web switch.
References in periodicals archive ?
Now, imagine you are a Layer 4 switch sitting in the middle of the network and you must make forwarding decisions based exclusively on Layer 4 information.
Cabletron continues to maintain industry leadership in the ASIC-based Layer 3 and Layer 4 switch market," said P.
Nasdaq:NTAP), the leading provider of dedicated data-access appliances and storage servers, today announced interoperability of the Foundry Network(TM) ServerIron(TM) Layer 4 switch and the Network Appliance(TM) NetCache(TM) appliance, along with a partnership that includes joint development, sales, and marketing.