Patent ID: 7761508

Claim:
A method comprising: creating a bundle on a first network between an access concentrator and an endpoint device before creating a tunnel on a second network between the access concentrator and a network server, wherein the access concentrator is configured to physically terminate a call from the endpoint device and the network server is configured to terminate a PPP session from the endpoint device; receiving non-multilink frames at the access concentrator through the tunnel from the network server, where the endpoint device is a destination for the non-multilink frames; fragmenting at least some of the non-multilink frames from the network server at the access concentrator; and sending fragmented and unfragmented frames over a data link from the access concentrator to the endpoint device, the data link comprising at least a portion of the bundle, such that only non-multilink frames are transferred between the access concentrator and the network server; wherein sending frames over the data link includes sending multilink point to point protocol (MLPPP) frames; and Interleaving PPP frames without multilink headers between multilink fragments and sending the frames over the data link receiving a frame at the access concentrator from the endpoint device; scanning the frame for PPP options at the access concentrator; removing options related to MLPPP negotiation, the removed options including Maximum Receive Reconstructed Unit (MRRU) options; and then forwarding the frame to the network server.