Index.
18-Oct-2011: initial release.
Introduction.
From the wiki: Link Layer Topology Discovery (LLTD) is a proprietary Link Layer protocol for network topology discovery and quality of service diagnostics. Microsoft developed it as part of the Windows Rally set of technologies. I created my own Arch package which you can find in the download section of this site. There is a package in AUR which works too, but that misses a patch that makes your linux server appear as a wired computer and doesn’t have a nice Linux icon.
The server is only supported by Windows Vista and Windows 7 clients. If you want to see Windows XP machines, you can install it from downloads from Microsoft, just search for them.
Do you need this? No, but it’s nice to have and it may help to discover network problems. Without this daemon, Windows tries to draw a picture too but it lacks some details. On the left is a picture taken from the actual test network. The Windows machine is connected to our home server via 2 switches.
If you want to see your Linux clients too, then just install this package on the Linux clients and they will show up as well.
Installation.
[root@homsrv ~]# pacman -S lld2d resolving dependencies... looking for inter-conflicts... Targets (1): lld2d-1.0-7 Total Download Size: 0.04 MB Total Installed Size: 0.18 MB Proceed with installation? [Y/n] :: Retrieving packages from mbse-extra... lld2d-1.0-7-i686 38.8K 655.7K/s 00:00:00 [######################] 100% (1/1) checking package integrity [######################] 100% (1/1) checking for file conflicts [######################] 100% (1/1) installing lld2d [######################] 100% [root@homsrv ~]# vi /etc/conf.d/lld2d [root@homsrv ~]# /etc/rc.d/lld2d start :: Starting LLD2D Daemon [DONE] [root@homsrv ~]# vi /etc/rc.conf [root@homsrv ~]#
In the file /etc/conf.d/lld2d you must change the network interface, on our Home Server this will be br0. In the file /etc/lld2d.conf are the icons defined, if you don’t like the default, change it and restart the daemon.
Download.
The complete configuration files.

