Patent ID: 8605567

Claim:
A network access point, comprising: a first digital subscriber line access multiplexer (DSLAM) having a first transceiver module and a first expansion module, wherein the first transceiver module has transceiver circuitry coupled to a first plurality of subscriber lines, and wherein the first expansion module has at least one vector engine; a second DSLAM having a second transceiver module and a second expansion module, wherein the second transceiver module has transceiver circuitry coupled to a second plurality of subscriber lines, and wherein the second expansion module has at least one vector engine; a third DSLAM having a third transceiver module and a third expansion module, wherein the third transceiver module has transceiver circuitry coupled to a third plurality of subscriber lines, and wherein the third expansion module has at least one vector engine; and a ring connector coupling the first DSLAM to the second and third DSLAMs, the ring connector comprising a first data connection, a second data connection, and a third data connection, wherein the first data connection couples the first DSLAM to the second DSLAM, wherein the second data connection couples the second DSLAM to the third DSLAM, wherein the third data connection is coupled to the third DSLAM, wherein the first, second, and third DSLAMs are configured to communicate crosstalk vectoring information via the ring connector, wherein the first expansion module is configured to use the crosstalk vectoring information to cancel crosstalk from symbols carried by the first plurality of subscriber lines, wherein the second expansion module is configured to use the crosstalk vectoring information to cancel crosstalk from symbols carried by the second plurality of subscriber lines, and wherein the third expansion module is configured to use the crosstalk vectoring information to cancel crosstalk from symbols carried by the third plurality of subscriber lines, and wherein the crosstalk vectoring information from each of a plurality of the DSLAMs is communicated across the first data connection.