公开(公告)号：US20240073158A1

公开(公告)日：2024-02-29

申请号：US18229094

申请日：2023-08-01

Applicant: Barefoot Networks, Inc.

Inventor： Anurag AGRAWAL ,  Julianne ZHU

IPC: H04L49/201 ,  H04L45/00 ,  H04L45/24 ,  H04L45/48 ,  H04L45/7453 ,  H04L49/55 ,  H04L49/901

CPC classification number: H04L49/201 ,  H04L45/245 ,  H04L45/38 ,  H04L45/48 ,  H04L45/7453 ,  H04L49/555 ,  H04L49/557 ,  H04L49/901

Abstract: A method of multicasting packets by a forwarding element that includes several packet replicators and several egress pipelines. Each packet replicator receives a data structure associated with a multicast packet that identifies a multicast group. Each packet replicator identifies a first physical egress port of a first egress pipeline for sending the multicast packet to a member of the multicast group. The first physical egress port is a member of LAG. Each packet replicator determines that the first physical egress port is not operational and identifies a second physical port in the LAG for sending the multicast packet to the member of the multicast group. When a packet replicator is connected to the same egress pipeline as the second physical egress, the packet replicator provides the identification of the second physical egress port to the egress pipeline to send the packet to the multicast member. Otherwise the packet replicator drops the packet.

公开(公告)号：US20200007473A1

公开(公告)日：2020-01-02

申请号：US16569554

申请日：2019-09-12

Applicant: Barefoot Networks, Inc.

Inventor： Changhoon KIM ,  Xiaozhou LI ,  Anurag AGRAWAL ,  Julianne ZHU

IPC: H04L12/861 ,  H03M13/09 ,  H04L12/743 ,  H04L12/24

Abstract: Some embodiments of the invention provide a forwarding element that can be configured through in-band data-plane messages from a remote controller that is a physically separate machine from the forwarding element. The forwarding element of some embodiments has data plane circuits that include several configurable message-processing stages, several storage queues, and a data-plane configurator. A set of one or more message-processing stages of the data plane are configured (1) to process configuration messages received by the data plane from the remote controller and (2) to store the configuration messages in a set of one or more storage queues. The data-plane configurator receives the configuration messages stored in the set of storage queues and configures one or more of the configurable message-processing stages based on configuration data in the configuration messages.