Answer & Explanation:the question is about this subject: Fundamentals
of Computer Networks
Nancy
Smith is the director of network infrastructure for Big E. Bank (BEB). BEB has
just purchased Ohio Bank (OB), a small regional bank that has 30 branches
spread over Ohio. OB has a WAN connecting five cities, in which it has
branches, to OBs main headquarters in Columbus. It has a series of MANs in
those cities (MAN is a Metropolitan Area Network, which usually spans a
city), which in turn connect to the LANs in each of the branches. The OB
network is adequate but uses very different data link, network and transport
protocols than those used by BEBs network. Smiths task is to connect OBs
network with BEBs network. She has several alternatives. Alternative Ais to
leave the two networks separate but install a few devices in OBs headquarters
to translate between the set of protocols used in the BEB network and those in
the OB network so that messages can flow between the two networks. Alternative
B is to replace all the WAN, MAN, and LAN network components in OBs entire
network so that OB uses the same protocols as BEB and the two can freely
communicate. Alternative C is to replace the devices in OBs WAN (and possibly
the MANs) so that each city (or each branch, if the MANs are replaced as well)
can communicate with the BEB network but leave the LANs in individual branches
unchanged. In this case, the device connecting the MAN (or the branch) will translate
between the OB protocols and the BEB protocols.Your job is to develop a short
list of pros and cons for each alternative and make a recommendation.
