Enhance the linktest physical map (ltpmap) with physical link attributes like node MAC addresses and whether linkdelays or veths are being used.
Enhance the linktest physical map (ltpmap) with physical link attributes
like node MAC addresses and whether linkdelays or veths are being used.

nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome