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In computer network protocol design, inter-server communication is an extension of the client–server model in which data are exchanged directly between servers.[1] In some fields server-to-server (S2S) is used as an alternative, and the term inter-domain can in some cases be used interchangeably.


Protocols that have inter-server functions as well as the regular client–server communications include the following:

Some of these protocols employ multicast strategies to efficiently deliver information to multiple servers at once.

See also[edit]


  1. ^ Zhou, Jingya; Fan, Jianxi; Cheng, Baolei; Jia, Juncheng (2016). Carretero, Jesus; Garcia-Blas, Javier; Ko, Ryan K.L.; Mueller, Peter; Nakano, Koji (eds.). Optimizing Inter-server Communications by Exploiting Overlapping Communities in Online Social Networks. Lecture Notes in Computer Science. Vol. 10048. Cham: Springer International Publishing. pp. 231–244. doi:10.1007/978-3-319-49583-5_18. ISBN 978-3-319-49583-5. {{cite book}}: |journal= ignored (help)