Abstract: A grid router for routing data over a grid sessionwise, involves multiple devices forwarding data according to sessions over an unreliable network between the devices. The devices include a first group of mailbox units to handle the sessions and a second group of egress units to forward session data to devices external to the network. The mailbox units and egress units are connected in a CLOS network such that each mailbox unit is accessible by each egress unit. The router further includes a distributed entity, which assigning specific sessions to specific mailbox units and to specific egress units and further defomes quality of service (QoS) levels for each session in the presence of congestion in either the network or the devices.

Abstract: A grid router including devices forwarding session data over an unreliable network between the devices, and distributed means providing quality of service levels defined per session given network or device congestion, the devices including session-handling units and egress units forwaring session data to devices external to the network, the router transporting the data across a link with acknowledgement, identifying link congestion and modifying the transporting as a function of the congestion, the router also connecting a multicast session, token bucket shaper with token bucket shapers of external devices, joining session token bucket shapers used for unicast and multicast sessions to the multicast session, token bucket shaper and deducting tokens consumed by the multicast session from a token budget of the session token bucket shaper, the router attributing priorities to a single traffic session as the session moves through the router while keeping packet order within the session.

Abstract: TCP Proxy apparatus for a wireless network section to a TCP-enabled network includes a latency aware unit for monitoring round trip time over the wireless access network section to determine latency within the access section; and a filter for filtering out momentary changes in the latency. Momentary fluctuations in the wireless connection causes instantaneous packet loss, which merely requires minimal packet retransmission, temporarily affecting latency. The filter ensures that such fluctuations do not activate the TCP congestion avoidance mechanisms and unnecessarily slow down the overall transmission rate.

Abstract: A grid router including devices forwarding session data over an unreliable network between the devices, and distributed means providing quality of service levels defined per session given network or device congestion, the devices including session-handling units and egress units forwaring session data to devices external to the network, the router transporting the data across a link with acknowledgement, identifying link congestion and modifying the transporting as a function of the congestion, the router also connecting a multicast session, token bucket shaper with token bucket shapers of external devices, joining session token bucket shapers used for unicast and multicast sessions to the multicast session, token bucket shaper and deducting tokens consumed by the multicast session from a token budget of the session token bucket shaper, the router attributing priorities to a single traffic session as the session moves through the router while keeping packet order within the session.