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US 10,873,528 B2Granted
Packet forwarding method and device utilizing the same
AssigneeNanning Fugui Precision Industrial Co., Ltd.
InventorChih-Chin Chang
Life of this patent
Estimating the term…
Abstract
A packet forwarding method. The method reacts to service function events promptly by recalculating a more streamlined service function path (SFP) for a packet flow of a service function chain (SFC). Service functions (SFs) and service function forwarders (SFFs) collaborate to serve a SFC packet flow and bypass SFs belonging to the same SF group which does not provides functional service to packets of the flow.
Claims4
A packet forwarding method executable by an electronic device, comprising:
- receiving a first packet classified for a service function path (SFP) at a first service function (SF) in the service function path;
- determining whether a bypass event associated with the first packet and the first service function is detected;
- inserting group information of the first service function into a header of the first packet in a condition that the bypass event is detected;
- transmitting the first packet comprising the group information to a service function forwarder (SFF);
- and
- modifying a service index in the service function chain encapsulation of the first packet to bypass one or more subsequent service functions arranged subsequent to the first service function in the service function path of the first packet in a condition that the first packet comprises the group information.
3 more elements
A packet forwarding device, comprising:
- a memory operable to store a sensitive detector module;
- a processor operable to load the sensitive detector module and perform a packet forwarding method comprising:
- receiving a first packet classified for a service function path (SFP) at a first service function (SF) in the service function path;
- determining whether a bypass event associated with the first packet and the first service function is detected;
- inserting group information of the first service function into a header of the first packet in a condition that the bypass event is detected;
- transmitting the first packet comprising the group information to a service function forwarder (SFF);
- and
- modifying a service index in the service function chain encapsulation of the first packet to bypass one or more subsequent service functions arranged subsequent to the first service function in the service function path of the first packet in a condition that the first packet comprises the group information.
5 more elements
Dependencies are inferred from the claim text.