how to make foreign key relationship on physically distributed data?

Question

• three servers
• server 1 is central point which links the other two servers.
• the other two servers have a table which has a field which should act like a foreign key

problem

well i do not know how to do this, using vs08 or sql server 08

diagram view

table on server 1

sv1pg1 id -- primary key details

tables same schema on srvr2 and srvr3

linkedSRVid -- pk linkedto -- fk constrain should be between (server 1 primary key and this field)

note that

"this is just a simplest! way i can think of to represent the prob, the real dbs contain

many fields and tables and the following applies"

• it's not always that the network connection between the server remains up.

• the link only need for "writing purpose" not viewing, as viewing done by direct

connection to the respective server.