Telecom protocol stacks support carrier grade Linux

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Feb. 21, 2003

MontaVista Software has validated the Hughes Software Systems (HSS) suite of telecom protocol stacks on the MontaVista Linux Carrier Grade Edition (CGE), according to a statement issued by the two companies. The HSS stacks are said to support a broad spectrum of VoIP, Wireless, and Wireline protocols, including MAP, RANAP, and GTP-C/U. Linux CGE supports telecommunications network equipment providers who are "increasingly demanding carrier-grade, open-architecture components for next-generation infrastructure products," the statement said.

The HSS protocol stacks communicate with the underlying operating system and hardware via a common abstraction library, with protocols that include SIP, H.323, H.248, MGCP and MEGACO for enabling Voice over Packet network solutions, and B-SS7, ISDN, GPRS, UMTS, MAP, CAP, GTP, Gb, and RANAP for 2.5G /3G mobile networks, as well as other standards-based communications protocol stacks. Currently, HSS offers the following protocol stacks on Linux . . .

VoIP: H.248, H.323, IUA, MGCP, M2PA, M2UA, M3UA, MicroSIP, SCTP, SIP, SUA
Wireless: BSSAP+, CAP, CC, FP, Gb (BSSGP, LLC, NS, SNDCP), GMM/SM, GSMS, GTP-C/U, GTP¹, INAP, Iu-CS, Iu-PS, Iub, Iur, LLC, MAP, MM, NBAP, PDCP, RABM, RLC/MAC, RNSAP, RRC, SNDCP, SS, USIL, Uu
SS7: ISUP, B-ISUP, MTP2, MTP3, MTP3-B, D-MTP3, SCCP, D-SCCP, TCAP
Broadband: ALCAP, IPoA, SSCF-NNI, SSCF-UNI, SSCOP, STC
Others: ISDN

HSS protocol stacks are available in portable source code or binary form on a variety of hardware platforms, along with API documentation and user manuals.

MontaVista's Linux CGE is intended for telecommunications and data communications applications such as soft switches, BSC/RNC (base station controllers/radio network controllers), media gateways, control plane applications in core/edge, media servers, and core switches. MontaVista says its Linux CGE provides high availability features such as CompactPCI hot swap, redundant Ethernet, and RAID1, 'hardened' drivers and Linux kernel, resource monitoring and fault management services, and other carrier-grade capabilities.

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