Problem
- Product Name: BES VisiBroker
- Product Version: 5.x and 4.x
In a test environment, it is found that when a NIC is set to half-duplex, the network performance between a client and its server gradually degrades, as the request load increases. The degradation is resolved when the NIC Is set to full-duplex. Why?
Resolution
By definition a half-duplex network device only allows communication in one direction at a time (like a walkie-talkie), while a full-duplex device allows communication in either direction simultaneously (like a telephone). When a client is making multi-threaded requests to a server, communication needs to be allowed for either direction so that the server can continue to receive new requests even as it replies to earlier requests. The full-duplex is the correct mode to use in a distributed environment.
Support Cas: 560548
Old KB# 26459
#half-duplex
#full-duplex
#Security
#VisiBroker
