(Data Link SWitching) An IBM method for integrating and forwarding SNA and LAN traffic over wide area networks (WANs) by encapsulating the data in TCP/IP packets. DLSw supports the SDLC (SNA) and LLC2 (Token Ring) data link protocols and is generally employed in routers. Multiprotocol over frame relay (MPOFR) is a later technology designed to move SNA and LAN traffic over frame relay. See MPOFR.
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2008 The Computer Language Company Inc. All rights reserved. |
Additional Resources
- Cisco patches IOS vulnerabilities
- Cisco patched multiple vulnerabilities on Wednesday with the most important fixes covering data-link switching, IPv6 and VPN flaws. Among the highest rated patches (all rated 7 or above on a 10 scale): Cisco patched multiple vulnerabilities in the Data-link Switching DLSw feature in its...
- Blog posts 2008-03-26
- NetRevisor (zip)
- NetRevisor is designed to aid Networking Engineers with the configuration and management of Cisco routers, switches. NetRevisor will automatically discover your network via CDP, EIGRP, OSPF or DLSW and sort them into user-defined groups. Automate running commands over a group of devices, import command parameters from a spreadsheet. Interrogate Cisco...
- Software downloads 2007-11-21
- Think 'Patch Tuesday' is just for Microsoft? Think again!
- Multiple Cisco vulnerabilities affecting IPS functionality in routers, PIX/ASA/FWSM firewalls, Switches. Multiple Cisco vulnerabilities affecting SIP/FTP/HTTP inspection in PIX/ASA products. While the patches are available, most Cisco devices are rarely if ever patched. For example, here is a long list of issues within the last three months...
- Blog posts 2007-02-16
- Configuring SNA Switching Services Over DLSw
- This paper describes how to configure a router and a mainframe computer to use Systems Network Architecture Switching Services SNASw over Data-Link Switching DLSw, to connect upstream to the mainframe and downstream to a legacy Physical Unit PU 2.0 node. In this paper example, the upstream connection to the mainframe...
- White papers 2005-09-05
- Cisco Security Advisory: Cisco Telnet Denial of Service Vulnerability
- A specifically crafted Transmission Control Protocol TCP connection to a telnet or reverse telnet port of a Cisco device running Internetwork Operating System IOS may block further telnet, reverse telnet, Remote Shell RSH, Secure Shell SSH, and in some cases Hypertext Transport Protocol HTTP access to the Cisco device. Data...
- White papers 2004-10-31
- Network Infrastructure Consolidation With Host Integration Server 2004
- Microsoft Host Integration Server HIS 2004 offers a number of technologies to integrate open Transmission Control Protocol/Internet Protocol (TCP/IP) and IBM Systems Network Architecture SNA networks. These technologies include a new Internet Protocol-Data Link Control (IP-DLC) Link Service in support of the industry-popular SNA over IP routing Enterprise Extender. IP-DLC...
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