Abstract: A method is described that resets a first count and resets a second count if a first transmission unit is recognized as being within a new measurement time window. The first transmission unit has a size. The method also increments the first count by the first transmission unit size and by the size of each subsequent transmission unit that is received within the new measurement time window after the first transmission unit—so long as the first count does not exceed a maximum allowable value for the first count. The method also checks if a maximum value for the second count is exceeded if it is incremented by a second transmission unit size. The second transmission unit is received within the measurement time window. The check is in response to a determination that the first count would have exceeded the first count maximum allowable valuable if the first count were incremented by the second transmission unit size.

Abstract: A system and method for AAL5 enhanced encapsulation is disclosed. The method, comprises receiving an AAL5 CPCS-SDU at a router; encapsulating the AAL5 CPCS-SDU into an AAL5 enhanced packet at the router; generating an MPLS packet from the AAL5 enhanced packet, wherein the AAL5 enhanced packet comprises an ATM header; and routing the MPLS packet over an MPLS network.

Abstract: An information communication routing system and method for dynamically determining and utilizing available communication bandwidth is presented. Free excess bandwidth on a scheduled link is measured dynamically and free available bandwidth is dynamically distributed to a queue. In one embodiment, a bandwidth availability tracking value is utilized to measure free excess bandwidth on a scheduled link and the free excess bandwidth dynamically distributed or assigned to a queue. A first packet size (e.g., fixed packet size) is added to the bandwidth availability tracking value whenever a link is scheduled in a calendar scheduling slot. A second packet size (e.g., actual size of the packet departed) is subtracted from the bandwidth tracking value whenever information is departed from a queue. If the bandwidth tracking value exceeds a threshold value (e.g., is positive) it indicates there is excess available bandwidth and the excess available bandwidth is assigned to a queue.

Abstract: Virtual local area network (VLAN) identifications (VIDs) used in a local area network (LAN) are identified. The LAN is connected to a connection-oriented wide area network (WAN). Each VLAN supports multiple priorities. For each VID, each of the priorities is mapped to a service type available in the WAN. Virtual connections (VCs) are set up based using a combination of the VID and the mapping of the priorities to the service types.

Abstract: A system and method for efficient packetization of cells transmitted over a packet network are described. Multiple virtual connections are received, each virtual connection carrying multiple cells. One or more cells of the cells carried by each virtual connection are stored for a predetermined time period. A cell counter of the stored cells is modified to indicate a number of the stored cells. Finally, a packet containing the stored cells is formed, the packet to be transmitted to a destination node over a network.

Abstract: A statistics data collection mechanism for distributed, high-speed data processing environments is described. According to one embodiment, an update message containing statistics data related to a data packet carried along a virtual connection is assembled and the update message is then transmitted to a statistics collection engine for further processing. According to another embodiment, the update message is received from one or more processing devices, and multiple counters are then updated to store the statistics data.

Abstract: Two or more virtual circuit (VC) labels associated with a tunnel label are mapped to a group identification (GID). The tunnel label is mapped to the GID in a GID table. When the two or more VC labels are to be associated with a new tunnel label, the tunnel label in the GID table is changed to the new tunnel label.

Abstract: A first and a second switching node establish a tunnel to transport a packet through a multiprotocol label-switching (MPLS) network. The tunnel is associated with a unique tunnel key. One or more virtual ciruit (VC) labels are automatically generated using the tunnel key.