Link-layer topology discovery mapper io driver

Windows 7 and Server 2008 introduce native assistance for TCP/IP variation 6 (IPv6) and some various other networking protocols. IT pro Rick Vanover outlines the brand-new protocols and also what they suppose for your netjob-related.


Like other administrators and also individuals, I’m happy for the release of Windows 7 and Server 2008 R2. While Windows 7 is touted as more of a client operating system rebirth from the bad reception that Vista had on the sector, Windows Server 2008 is a much less controversial and herbal upgrade of the server operating mechanism. Both products were released at the same time and have actually rather a little bit in prevalent. One item that both have actually in prevalent is assistance for both IPv4 and IPv6 running on default installations. Both also have two new networking protocols running: the Link-Layer Topology Discovery Mapper I/O Driver and also Link-Layer Topology Discovery Responder.

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Therefore much, I’ve ssuggest turned off IPv6, both of the brand-new protocols, and sometimes the QoS Packet Scheduler relying on my mood. Regarding the two brand-new protocols, what are they and also what do they do?

Link-Layer Topology Discovery

The Link-Layer Topology Discoexceptionally (LLTD) is a component of the Windows netfunctioning implementation that allows computers and other devices to be stood for on a map. Windows Vista, Windows Server 2008, and also Windows 7 computers deserve to natively populate the Netoccupational Map. This is visible in the Network-related and also Sharing Center by picking See Full Map. Each computer that is found have the right to be presented in this map. Setups that go for each form of netjob-related (public, home, job-related, etc.) dictate actions for these netfunctions. Somewhat unintuitively, if a netjob-related is set to a private-course network-related, the default settings permit for LLTD operation. If the protocols are removed from the networking stack, LLTD will not job-related.

The two components for LLTD are the responder and also the mapper I/O driver. These components job-related together to populate and also enumeprice the maps.

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Figure A mirrors a map occupied on my exclusive netjob-related for 2 LLTD-allowed systems.

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Figure A


By Rick Vanover

Rick Vanover is a software strategy specialist for Veeam Software, based in Columbus, Ohio. Rick has actually years of IT suffer and also focuses on virtualization, Windows-based server administration, and mechanism hardware.


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