Data-Link Switching

Data-Link Switching

Data-Link Switching (DLSw) is a tunneling protocol designed to tunnel unroutable, non-IP based protocols such as IBM Systems Network Architecture (SNA) and NBF over an IP network.

DLSw was initially documented in IETF RFC 1434 in 1993. In 1995 it was further documented in the IETF RFC 1795. DLSw version 2 was presented in 1997 in IETF RFC 2166 as an improvement to RFC 1795. Cisco Systems has its own proprietary extensions to DLSw in DLSw+. According to Cisco, DLSw+ is 100% IETF RFC 1795 compliant but includes some proprietary extensions that can be used when both devices are Cisco.[1]

Some organisations are starting to replace DLSw tunneling with the more modern Enterprise Extender (EE) protocol which is a feature of IBM APPN on z/OS systems. Microsoft refers to EE as IPDLC. Enterprise Extender uses UDP traffic at the Transport Layer rather than the Network Layer.[2] Cisco deploy Enterprise Extender on their hardware via the IOS feature known as SNAsW (SNA Switch).

See also

References

External links


Wikimedia Foundation. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Data-link switching — (DLSw) is a tunneling protocol designed to tunnel unroutable, non IP based protocols such as IBM Systems Network Architecture (SNA) and NBF over an IP network.DLSw was initially documented in IETF RFC 1434 in 1993. In 1995 it was further… …   Wikipedia

  • Data Link Switching — (DLSW) ist ein Netzwerkprotokoll zur Übertragung von nicht routbaren Protokollen über TCP/IP. Mit DLSW können SNA und NetBIOS Daten in einem TCP/IP Netz dynamisch weitergeleitet (geroutet) werden. DLSW wurde 1992 von IBM entwickelt und 1993 im… …   Deutsch Wikipedia

  • Data Link Switching —    Abbreviated DLSw. A standard for encapsulating or tunneling IBM Systems Network Architecture (SNA) and NetBIOS applications across IP networks.    See also Advanced Peer to Peer Networking; Systems Network Architecture …   Dictionary of networking

  • Data-Link Connection Identifier — (DLCI) ist ein Begriff aus der Netzwerktechnik, konkret der Frame Relay Technik. Diese ist eine Paket vermittelnde Technik, die aber auch Aspekte eines Circuit switching Netzwerkes beinhaltet. Dies wird durch virtuelle Kanäle ermöglicht, die eine …   Deutsch Wikipedia

  • Data link layer — The OSI model 7 Application layer 6 Presentation layer 5 Session layer 4 Transport layer 3 Network layer 2 …   Wikipedia

  • Data Link Layer — The Data Link Layer is Layer 2 of the seven layer OSI model. It responds to service requests from the Network Layer and issues service requests to the Physical Layer.The Data Link Layer is the protocol layer which transfers data between adjacent… …   Wikipedia

  • Data transmission — Data transmission, digital transmission, or digital communications is the physical transfer of data (a digital bit stream) over a point to point or point to multipoint communication channel. Examples of such channels are copper wires, optical… …   Wikipedia

  • Link layer — In computer networking, the link layer is the lowest layer in the Internet Protocol Suite (commonly known as TCP/IP ), the networking architecture of the Internet (RFC 1122, RFC 1123). It is the group of methods or protocols that only operate on… …   Wikipedia

  • Diversity Link System — Das Data Link Switching System (DLS) ist ein auch im Flugmodellbau eingesetzte technische Vorrichtung, die durch redundante, also durch mehrfache Auslegung des Empfangssystems, eine höhere Übertragungssicherheit der Steuerbefehle zulässt. Als… …   Deutsch Wikipedia

  • Data discrimination — Network Neutrality Related issues and topics Automatic telephone exchange Data discrimination End to end principle Internet Protocol Tiered Internet Bandwidth Throttling …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”