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US 10,708,173 B2Granted
Multipath forwarding in an overlay network
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorZu Qiang
Life of this patent
Estimating the term…
Abstract
The use of overlay networks, such as Network Virtualization using Overlays over Layer 3 (NVO3), is a growing trend to address networking issues in data centers that make use of virtualization and cloud computing techniques. Additional considerations may be required to support multipath forwarding scenarios.
Claims20
A method for handling packet traffic by an overlay network node, comprising:
- receiving a data path notification message from a peer node, the data path notification message including forwarding policy information;
- receiving a packet, the packet having a first overlay network address destination;
- determining that the first overlay network address destination maps to a plurality of underlay network addresses;
- selecting one of the plurality of underlay network addresses in accordance with the received forwarding policy information;
- and
- forwarding the packet to the selected underlay network address.
3 more elements
An overlay network node comprising circuitry including a processor and a memory, the memory containing instructions executable by the processor whereby the overlay network node is operative to:
- receive a data path notification message from a peer node, the data path notification message including forwarding policy information;
- receive a packet, the packet having a first overlay network address destination;
- determine that the first overlay network address destination maps to a plurality of underlay network addresses;
- select one of the plurality of underlay network addresses in accordance with the received forwarding policy information;
- and
- forward the packet to the selected underlay network address.
3 more elements
Dependencies are inferred from the claim text.