Patent ID: 9729349
Date: 2017-08-08
CPC Classifications: H04L

Claim:
1. A method for specialized processing of data in a port-extended network having a control node and a plurality of satellite nodes, the method comprising: receiving, by the control node of the port-extended network, a data frame, wherein the data frame includes, at a first field of the data frame, information indicative of an incoming port at which the data frame was received, the first field having been inserted by a satellite node associated with the port; determining, by the control node of the port-extended network, that one or more packets of a frame require specialized processing; replacing the information contained in the first field with information indicative of the specialized processing; replacing information contained in a second field with information indicative of an outgoing port of a second satellite node of the port-extended network; and transmitting, by the control node onto the port-extended network, a modified data frame, the modified data frame including a payload associated with the received data frame, the information indicative of the specialized processing in the first field, and the information indicative of the outgoing port in the second field, wherein determining that one or more packets of a frame require specialized processing further comprises determining that the one or more packets to be sent via the outgoing port is in a blocking state due, at least in part, to the outgoing port being shared between multiple virtual local area networks (VLANs), and wherein replacing the information contained in the first field includes inserting, by the control node, data for triggering an ACL policy for forwarding the one or more packets to the DVIF when the outgoing port is no longer in a blocking state.