US 2003/0156538 A1 · Inverse multiplexing of unmanaged traffic flows over a multi-star network

Abstract

A method for inverse multiplexing of unmanaged traffic flows over a multi-star switch network, where the ingress process for each switch handles managed traffic for its switch first, then pulls a single unmanaged traffic packet off of the unmanaged traffic queue, and processes and transmits the packet. At the destination node unmanaged traffic packets received from the fabric output are acted upon by the Sequence-Checking Process to determine if the packet is in sequence. If the received packet is in sequence, the Sequence-Checking Process sends it on to the output queue. If the received packet is not in sequence, the packet is placed in a buffer. The Sequence Checking Process then checks the fabric output and the buffer by scanning for the next in-sequence packet.

Claims29

Dependent claims

A method of inverse multiplexing unmanaged traffic flows over a multi-star switch network, comprising:

classifying incoming traffic to a flow;
assigning a packet sequence number to a packet from a unmanaged traffic flow going to a destination node, placing the packet into an unmanaged traffic queue, and maintaining an expected sequence number (ESN);
processing and transmitting all managed packets destined for a switch, then processing and transmitting an unmanaged packet from the unmanaged traffic queue;
placing an arriving unmanaged packet without the ESN from a switch fabric output into a destination source-node-specific-unmanaged-traffic buffer (SNSUT) to form a placed unmanaged packet without the ESN;
and
moving an arriving unmanaged packet having the ESN, an arriving managed packet received from the switch fabric output, or a placed unmanaged packet having the ESN in the SNSUT, to an intended output queue.

3 more elements

Dependencies are inferred from the claim text.

Inverse multiplexing of unmanaged traffic flows over a multi-star network

Life of this patent

Inverse multiplexing of unmanaged traffic flows over a multi-star network

Life of this patent

Abstract

Claims29