| US 7,565,436 B2 | ||
| Ethernet to frame relay interworking with multiple quality of service levels | ||
| Sameh Rabie, Kanata (Canada); Richard Pommainville, Ottawa (Canada); John Whatman, Ottawa (Canada); Bashar Abdullah, Ottawa (Canada); John Rosser Davies, Kanata (Canada); and Baghdad Barka, Nepean (Canada) | ||
| Assigned to Nortel Networks Limited, St. Laurent, Quebec (Canada) | ||
| Filed on Dec. 24, 2003, as Appl. No. 10/744,000. | ||
| Prior Publication US 2005/0144327 A1, Jun. 30, 2005 | ||
| Int. Cl. G06F 15/16 (2006.01) | ||
| U.S. Cl. 709—229 [709/227; 709/228] | 31 Claims |
| 1. A method of implementing Quality of Service (QoS) across Frame Relay and Ethernet networks to enable similar QoS to be
provided to packets in both the Frame Relay and Ethernet networks as the packets pass from one network to the other, the method
comprising the steps of:
receiving a packet from the Ethernet network;
identifying the packet according to an Ethernet protocol for servicing;
determining an Ethernet QoS metric for the identified packet, the QoS metric being associated with the packet on the Ethernet
network, said determining an Ethernet QoS metric includes considering Ethernet information, wherein said Ethernet information
includes p-bits information; and
based upon the determined Ethernet QoS metric, determining a corresponding Frame Relay QoS metric; and
servicing the identified packet for transmission on the Frame Relay network in accordance with the determined corresponding
Frame Relay QoS metric protocol to thereby enable similar QoS to be provided to the packet in the Frame Relay network as was
provided to the packet in the Ethernet network, wherein said servicing the identified racket further includes assigning a
drop precedence to the packet based on the p-bits information.
|