In enterprise level network its common to have HQ(Head Quarters)-Branch Office network. These branch offices may required to connected with HQ resources for its operations. Most of the time this kind of setup uses WAN links to connect branch Offices with HQ network. Let's assume we have company called ABC and its HQ is located in Canada Toronto. Due to the Expansion its need branch office open in London, UK. So the requirement is more complicated as its 2 different countries.
The users in London office still need to authenticate the company domain environment and access the resources. Let's Look in
to some of the difficulties, challenges faces with typical this kind of setup.
Lack of Resources
to some of the difficulties, challenges faces with typical this kind of setup.
Lack of Resources
To connect HQ with branch site its required secure, reliable connection. But these connections typically comes with high $$$$ cost. Even though its cost mostly these links will be with speed of 128kb, 256kb, 512kb etc. If users in branch site is authenticating company AD it will use WAN link for the all the authentication, resources access etc. if the number of users increase in branch site the link utilization just for the AD activities will increased. Also since its between different geographical locations, different ISP, many facts will affect the reliability of the link as well. what happen if the WAN link went down on critical business day ? so solution is to deploy AD in branch site and it will be opening whole different range of concerns, problems.
