Patent ID: 8332639

Claim:
A method comprising: negotiating, by a first encryption device, an encryption protocol with a second encryption device; negotiating, by the first encryption device, a label switched path (LSP) label with the second encryption device; storing, by the first encryption device, the LSP label; storing, by the first encryption device, information identifying the encryption protocol in association with the LSP label; receiving, by the first encryption device, data from a trusted client device; encrypting, by the first encryption device, the data with the negotiated encryption protocol based on the information identifying the encryption protocol; applying, by the first encryption device, the LSP label to the encrypted data based on the information identifying the encryption protocol being stored in association with the LSP label; and transmitting, by the first encryption device, the encrypted data to the second encryption device through a Multiprotocol Label Switching (MPLS) network.