US 2026/0095403 A1 · TRAFFIC REROUTING IN A LINK AGGREGATION GROUP

Abstract

A system receives, by a network device in a first network fabric, a to be forwarded flow over a link aggregation group (LAG) comprising a plurality of physical ports aggregated as a single logical port. The system determines loads associated with the LAG ports and selects a first LAG port based on a first load associated with the first LAG port. The system forwards the flow on a first path over the selected first LAG port. The system stores a state of the flow, wherein the flow is forwarded in a second network fabric. The system receives, from the first LAG port, a redirect acknowledgment (ACK) indicating that the flow is to be considered as a candidate flow to be rerouted. The system selects the flow from a plurality of candidate flows to be rerouted and forwards the selected flow on a second path over a second LAG port.

Claims20

Dependent claims

A computer-implemented method, comprising:

receiving, by a network device in a first network fabric, a to be forwarded flow over a link aggregation group (LAG) comprising a plurality of physical ports aggregated as a single logical port;
determining loads associated with the LAG ports;
selecting a first LAG port for the flow based on a first load associated with the first LAG port;
forwarding the flow on a first path over the selected first LAG port;
storing a state of the flow, wherein the flow is forwarded in a second network fabric;
receiving, from the first LAG port, a redirect acknowledgment (ACK) indicating that the flow is to be considered as a candidate flow to be rerouted;
selecting the flow from a plurality of candidate flows to be rerouted;
and
forwarding the selected flow on a second path over a second LAG port.

6 more elements

A network device operating in a first network fabric, the network device comprising:

one or more processing resources;
and
a storage device storing instructions which when executed by the one or more processing resources comprise instructions to:
receive a to be forwarded flow over a link aggregation group (LAG) in the first network fabric, the LAG comprising a plurality of physical ports aggregated as a single logical port;
determine loads associated with the LAG ports;
select a first LAG port for the flow based on a first load associated with the first LAG port;
forward the flow on a first path over the selected first LAG port;
record a state of the flow, wherein the flow is forwarded to a second network fabric;
receive, from the first LAG port, a redirect acknowledgment (ACK) indicating that the flow is to be considered as a candidate flow to be rerouted;
select the flow from a plurality of candidate flows to be rerouted;
and
reroute the selected flow by forwarding the selected flow on a second path over a second LAG port different than the first path over the selected first LAG port.

9 more elements

Dependencies are inferred from the claim text.

Traffic rerouting in a link aggregation group

Life of this patent

Traffic rerouting in a link aggregation group

Life of this patent

Abstract

Claims20