Communications Controller for Linux (Communications Controller for Linux on System z or CCL) is an IBM software product announced in 2005 that runs under Linux on IBM Z and emulates an IBM 37xx communications controller. CCL runs unmodified IBM Network Control Program (NCP) to allow consolidation of an

SNA SNA or Sna may refer to: Organizations * Novinite.com (Sofia News Agency), Bulgaria's largest English-language news provider * Shanni Nationalities Army * Singapore National Academy, a school in Surabaya, Indonesia * Sky News Australia, an Austra ...

network infrastructure to IP. According to IBM "SNA traffic enters and leaves CCL as SNA network flows over an OSA adapter. However, your wide area network infrastructure does not need to be SNA. You can consolidate your SNA traffic and use tunneling such as data link switching (DLSw) to encapsulate the SNA communication over an IP network." CCL supports

Ethernet Ethernet () is a family of wired computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks (WAN). It was commercially introduced in 1980 and first standardized in ...

and

Token Ring Token Ring network IBM hermaphroditic connector with locking clip. Screen contacts are prominently visible, gold-plated signal contacts less so. Token Ring is a computer networking technology used to build local area networks. It was introduc ...

local area network A local area network (LAN) is a computer network that interconnects computers within a limited area such as a residence, school, laboratory, university campus or office building. By contrast, a wide area network (WAN) not only covers a larger ...

(LAN) connectivity directly, and other connectivity through a DLSw router. X.25 requires IBM's NPSI software plus a third party package. CCL does not support Bisync or start-stop. According to IBM figures, CCL offers the performance of an "average 3745."

References

IBM mainframe operating systems Systems Network Architecture {{mainframe-compu-stub

Further reading

References