Buffer optimization in modular switches
US10645033B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2017 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | Apr 25, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/3036
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a packet network of ingress nodes and egress nodes connected by a fabric transmit queues are associated with a hash table that stores packet descriptors. When new packets are received in the ingress nodes, credits are obtained from the egress nodes that reflect capacities of the transmit queues to accommodate the new packets. The credits are consumed by transmitting at least a portion of the new packets from the ingress nodes to the egress nodes via the fabric and storing descriptors of the new packets in a hash table. In order to transmit the packets in order by sequence number, when a desired packet sequence number is found by a hash lookup, the new packet having that sequence number is forwarded through the egress nodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.