Engage Communication Announces Support for HDLC Over IP.Business Editors/High-Tech Writers APTOS, Calif.--(BUSINESS WIRE)--Sept. 9, 2003 Engage Communication, Inc. incorporates the HDLC (High-level Data Link Control) A data link protocol from ISO for point-to-point communications over serial links. Derived from IBM's SDLC protocol, HDLC has been the basis for numerous protocols including X.25, ISDN, T1, SS7, GSM, CDPD, PPP and others. Over IP protocol into the IPTube product line. WAN Protocols, such as PPP (Point-to-Point Protocol) The most popular method for transporting IP packets over a serial link between the user and the ISP. Developed in 1994 by the IETF and superseding the SLIP protocol, PPP establishes the session between the user's computer and the ISP using and Frame Relay, that utilize HDLC framing are encapsulated within IP packets for transport via Broadband IP services such as Wireless Ethernet, Metropolitan Area Networks, Gigagbit Ethernet, and IP satellite services. One of the most common layer 2 protocols is HDLC. In fact, many other common layer 2 protocols are heavily based on HDLC, particularly the framing structure of HDLC: namely, PPP, Frame Relay, Cisco HDLC, SDLC (Synchronous Data Link Control) The primary data link protocol used in IBM's SNA networks. It is a bit-oriented synchronous protocol that is a subset of the HDLC protocol. See SNA, DLC and Microsoft DLC. 1. , SS#7, AppleTalk, LAPB LAPB - Link Access Protocol Balanced , and LAPD 1. LAPD - Link Access Procedure on the D channel. 2. LAPD - Los Angeles Police Department. . IPTubes with HDLCoIP connect to the leased line interface, V.35/RS530/T1/E1, of an Enterprise's WAN Router and encapsulate en·cap·su·late v. 1. To form a capsule or sheath around. 2. To become encapsulated. en·cap the HDLC frames into an IP Packet that is sent to the remote site IPTube where it is presented to the remote WAN router as the original HDLC frame. Enterprises are able to connect to broadband IP services through their existing proven WAN infrastructure. Internal Ethernet networks remain isolated and security services such as Firewalling are maintained. Broadband Service providers are able to transport Enterprise Wide Area Network connections with inband management of the Committed Information Rates. Service providers regulate the Committed Information bandwidth with NX64k resolution. IPTubes connect to the synchronous serial DTE (Data Terminating Equipment) A communications device that is the source or destination of signals on a network. It is typically a terminal or computer. Contrast with DCE.  DTE - Data Terminal Equipment interface of WAN equipment with very flexible clocking. The IP Tunnel can also be utilized as a secondary path for fault tolerant mission critical applications. "IP Tubes with HDLC Over IP enables interconnection of WAN networks over very cost effective and no cost Broadband services," said Mark Doyle, Engage Communication President. "We are especially intrigued with the Multipoint Wireless implementations that supplant Frame Relay networks." Engage IPTube models: IP-Tube-T1 IP-Tube-E1 IP-Tube-RS530 IP-Tube-V.35 About Engage Communication Engage Communication, incorporated in September 1989, develops, manufactures, sells and supports premium networking and telecommunication solutions. Engage has deployed HDLC based networking products since its inception in 1989. |
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