Patent ID: 7400647

Claim:
A method for converting a Point-to-Point Protocol (PPP) identifier (PPP ID) value to an Ethernet Virtual Local Area Network (VLAN) tag identifier (ID) value utilizing a PPP ID look up table (LUT), the method comprising: receiving a PPP frame, the PPP frame including at least a PPP identifier (PPP ID) value; converting the PPP ID value to an Ethernet VLAN tag ID value corresponding to the PPP ID value, including: inputting the PPP ID value to at least a first comparator, the first comparator being associated with a first PPP ID register, the first PPP ID register storing a unique first PPP ID register value; inputting the first PPP ID register value to the first comparator; comparing the PPP ID value to the first PPP ID register value; determining if the PPP ID value matches the first PPP ID register value; if the PPP ID value matches the first PPP ID register value, retrieving the Ethernet VLAN tag ID value stored in an associated first VLAN tag ID register, the Ethernet VLAN tag ID value corresponding to the PPP ID value; and outputting an Ethernet frame including the Ethernet VLAN tag ID value corresponding to the PPP ID value.