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公开(公告)号：US20240406102A1
公开(公告)日：2024-12-05
申请号：US18204196
申请日：2023-05-31
Applicant: Hewlett Packard Enterprise Development LP
Inventor： Saumya Dikshit , Thomas Samuel
Abstract: A system for efficient traffic management is provided. During operation, the system can receive a first route update via a first tunnel coupling a first switch in a first overlay tunnel fabric of a network site. The first route update can include a first set of hierarchical identifiers associated with the first switch. Here, a respective identifier can correspond to a distinct networking hierarchy with respect to the first switch. The system can also receive a second route update via a second tunnel coupling a second switch in a second overlay tunnel fabric of the site. The second route update can include a second set of hierarchical identifiers associated with the second switch. Upon receiving a packet via a tunnel, the system can determine whether to forward the packet to the first switch and the second switch based on the first and second sets of hierarchical identifiers, respectively.
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公开(公告)号：US20240179025A1
公开(公告)日：2024-05-30
申请号：US18072019
申请日：2022-11-30
Applicant: Hewlett Packard Enterprise Development LP
Inventor： Tathagata Nandy , Chethan Chavadibagilu Radhakrishnabhat , Thomas Samuel , Priyam De
CPC classification number: H04L12/4633 , H04L45/04 , H04L45/16
Abstract: A system for efficient multicast control packet forwarding is provided. During operation, the system can maintain a first tunnel between a first switch and a second switch in an overlay tunnel fabric. The encapsulation of a packet sent via the overlay tunnel fabric is initiated and terminated within the overlay tunnel fabric. The system can maintain a second tunnel between the first switch and a third switch, which can be in an external network that excludes the first and second switches. The switch can distinguish the first and second tunnels as intra-fabric and inter-fabric tunnels, respectively. Upon receiving a multicast control packet via the first tunnel, the system can identify the second tunnel as the inter-fabric tunnel and forward the multicast control packet via the second tunnel. Here, a respective multicast control packet received from the first tunnel can be precluded from being forwarded on intra-fabric tunnels.
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公开(公告)号：US20240364618A1
公开(公告)日：2024-10-31
申请号：US18141035
申请日：2023-04-28
Applicant: Hewlett Packard Enterprise Development LP
Inventor： Tathagata Nandy , Thomas Samuel
Abstract: A system for efficient multicast forwarding at a switch is provided. During operation, the switch can maintain a first tunnel with a first switch in a first overlay tunnel fabric, and a second tunnel with a second switch in a second overlay tunnel fabric. The switch can operate as the gateway for both fabrics. The system can obtain a first fabric identifier and a second fabric identifier from multicast control packets received via the first and second tunnels, respectively. A fabric identifier can uniquely identify a fabric. The system can then store, in a data structure, a first network address of the first switch and a second network address of the second switch in association with the first and second fabric identifiers, respectively. The system can determine whether to forward multicast traffic to either one of the first and second fabrics based on the first and second fabric identifiers, respectively.
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公开(公告)号：US12273219B2
公开(公告)日：2025-04-08
申请号：US18072019
申请日：2022-11-30
Applicant: Hewlett Packard Enterprise Development LP
Inventor： Tathagata Nandy , Chethan Chavadibagilu Radhakrishnabhat , Thomas Samuel , Priyam De
Abstract: A system for efficient multicast control packet forwarding is provided. During operation, the system can maintain a first tunnel between a first switch and a second switch in an overlay tunnel fabric. The encapsulation of a packet sent via the overlay tunnel fabric is initiated and terminated within the overlay tunnel fabric. The system can maintain a second tunnel between the first switch and a third switch, which can be in an external network that excludes the first and second switches. The switch can distinguish the first and second tunnels as intra-fabric and inter-fabric tunnels, respectively. Upon receiving a multicast control packet via the first tunnel, the system can identify the second tunnel as the inter-fabric tunnel and forward the multicast control packet via the second tunnel. Here, a respective multicast control packet received from the first tunnel can be precluded from being forwarded on intra-fabric tunnels.
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