Patent ID: 8718073

Claim:
In a node, a method comprising: receiving a data packet from another node to examine whether the other node commonly supports one or more virtual channels on a point-to-point communication link directly coupled between the nodes; and signaling common support for one or more virtual channels, based on content in the received data packet that indicates whether the other node transmitting the data packet has adequate queue resource to support one or more virtual channels of a given type, and based on whether the node has adequate queue resources to support the one or more virtual channels of a given type, wherein the node is to comprise a signal engine to indicate common support for the one or more virtual channels by asserting or deasserting a signal to cause change to a flag associated with the one or more supported virtual channels of a given type on the point-to-point communication link between the nodes and wherein once a first and a second temporary virtual channel queue resources tables are populated by a read feature, a resource feature is to cause access to the first and second temporary virtual channel queue resources tables and based, at least in part, on the contents of the first or second temporary virtual channel queue resources tables, is to cause a determination of whether a select virtual channel is supported.