Comments
please check this link it is better for you
http://books.google.com.pk/books?id=mxExfiJEvv4C&pg=PA218&lpg=PA218&dq=In+which+physical+network+topology+would+a+Multistation+Access+Unit+(MSAU)+be+used%3F&source=bl&ots=AudGmSdR3J&sig=HBd91nFGucnpyDfdqMEjt-eRCXs&hl=en&ei=kWutSe6hHJKwkAXZ69SyBg&sa=X&oi=book_result&resnum=2&ct=result#PPA217,M1
Posted by waqasahmad
The ring topology consists of a closed loop in which each host is connected to the node
Ahead of it and the node behind it hi the loop. A Multistation Access Unit (MS All) can
be used to interconnect multiple ring networks.
Posted by suresh123