Hello
i have 3 adsl link (512kb) and i want that links unification.
many thanks

hi
you can do this with load balancing or nth.

Your ISP needs to support link bundling. Otherwise, you can only do load balancing. There are various mechanisms to bundle links at Layer 2 and make them appear as a single logical link at Layer 3.

1. MLPPP
2. MLFR, Inverse Multiplexing for ATM (IMA)
3. Link Aggregation Control Protocol (LACP)

They are all methods to achieve similar functions on different media.

MLPPP bundles serial links that run the PPP protocol; MLFR bundles serial links running the Frame Relay protocol; IMA bundles ATM links; and LACP bundles Ethernet links.

it wont be 3 links = 1 speed.
it'll be "pick the best one" or "random" at times.

the sad answer is: it'll never work. and you'll always end up using the slowest link out of the 3 or you'll end up overloading one and the other 2 get unused.