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公开(公告)号：US20230254170A1
公开(公告)日：2023-08-10
申请号：US17667266
申请日：2022-02-08
Applicant: Arista Networks, Inc.
Inventor： Bharathram Pattabhiraman , Suresh Nalagatla , Saravanan Balasubramanian , Prashant Srinivas
CPC classification number: H04L12/18 , H04L45/16 , H04L12/4641
Abstract: Protocol-Independent Multicast (PIM) uses PIM hello messages to maintain neighborship information. PIM may be implemented in an Ethernet VPN (EVPN) providing Optimized Inter-Subnet Multicast (OISM). Techniques are disclosed for improving PIM neighborship efficiency and speed in an EVPN. An Inclusive Multicast Ethernet Tag (IMET) may be used to set PIM neighborship instead of using PIM hello messages and TCP may be used to determine if the neighbor is disconnected instead of tracking PIM timers.
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Patent Agency Ranking
公开(公告)号：US11909542B2
公开(公告)日：2024-02-20
申请号：US17667266
申请日：2022-02-08
Applicant: Arista Networks, Inc.
Inventor： Bharathram Pattabhiraman , Suresh Nalagatla , Saravanan Balasubramanian , Prashant Srinivas
CPC classification number: H04L12/18 , H04L12/4641 , H04L45/16
Abstract: Protocol-Independent Multicast (PIM) uses PIM hello messages to maintain neighborship information. PIM may be implemented in an Ethernet VPN (EVPN) providing Optimized Inter-Subnet Multicast (OISM). Techniques are disclosed for improving PIM neighborship efficiency and speed in an EVPN. An Inclusive Multicast Ethernet Tag (IMET) may be used to set PIM neighborship instead of using PIM hello messages and TCP may be used to determine if the neighbor is disconnected instead of tracking PIM timers.
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公开(公告)号：US11870605B2
公开(公告)日：2024-01-09
申请号：US17840599
申请日：2022-06-14
Applicant: Arista Networks, Inc.
Inventor： Suresh Nalagatla , Saravanan Balasubramanian , Prashant Srinivas , Bharathram Pattabhiraman
CPC classification number: H04L12/4641 , H04L12/1886 , H04L12/44 , H04L12/462
Abstract: Techniques for operating a network device are provided. In some embodiments, a method may comprise: forwarding multicast data packets from a source in a first customer network to a receiver in a second customer network; detecting that another PE device is forwarding the multicast data packets, wherein: Protocol Independent Multicast (PIM) is enabled on supplemental bridge domain (SBD) logical interfaces of the PE device and the another PE device, the PE device and the another PE device are PIM neighbors, and the PE device and the another PE device communicate with each other and with the receiver using the PIM protocol through an Ethernet virtual private network (EVPN). The method may further comprise: determining the another PE device is an assert winner from among the PE device and the another PE device based on at least one PIM assert message, the another PE device forwarding the multicast data packets.
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公开(公告)号：US11528157B1
公开(公告)日：2022-12-13
申请号：US17530787
申请日：2021-11-19
Applicant: Arista Networks, Inc.
Inventor： Swati Patel , Bharathram Pattabhiraman , Rajesh Semwal , Saravanan Balasubramanian
Abstract: Peer devices in a peer group of provider edge devices to which a customer edge device is multi-homed, advertise Selective Multicast Ethernet Tag (SMET) routes to other peer devices on a core to receive traffic addressed to a multicast group. The peer devices in the peer group advertise the SMET routes irrespective of whether they are the designated forwarder or not. A peer device receiving traffic for the multicast group will drop the packet if it is not the designated forwarder and will forward the packet if it is the designated forwarder.
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公开(公告)号：US20240235890A1
公开(公告)日：2024-07-11
申请号：US18396180
申请日：2023-12-26
Applicant: Arista Networks, Inc.
Inventor： Suresh Nalagatla , Saravanan Balasubramanian , Prashant Srinivas , Bharathram Pattabhiraman
CPC classification number: H04L12/4641 , H04L12/1886 , H04L12/44 , H04L12/462
Abstract: Techniques for operating a network device are provided. In some embodiments, a method may comprise: forwarding multicast data packets from a source in a first customer network to a receiver in a second customer network; detecting that another PE device is forwarding the multicast data packets, wherein: Protocol Independent Multicast (PIM) is enabled on supplemental bridge domain (SBD) logical interfaces of the PE device and the another PE device, the PE device and the another PE device are PIM neighbors, and the PE device and the another PE device communicate with each other and with the receiver using the PIM protocol through an Ethernet virtual private network (EVPN). The method may further comprise determining the another PE device is an assert winner from among the PE device and the another PE device based on at least one PIM assert message, the another PE device forwarding the multicast data packets.
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公开(公告)号：US20220417059A1
公开(公告)日：2022-12-29
申请号：US17840599
申请日：2022-06-14
Applicant: Arista Networks, Inc.
Inventor： Suresh Nalagatla , Saravanan Balasubramanian , Prashant Srinivas , Bharathram Pattabhiraman
Abstract: Techniques for operating a network device are provided. In some embodiments, a method may comprise: forwarding multicast data packets from a source in a first customer network to a receiver in a second customer network; detecting that another PE device is forwarding the multicast data packets, wherein: Protocol Independent Multicast (PIM) is enabled on supplemental bridge domain (SBD) logical interfaces of the PE device and the another PE device, the PE device and the another PE device are PIM neighbors, and the PE device and the another PE device communicate with each other and with the receiver using the PIM protocol through an Ethernet virtual private network (EVPN). The method may further comprise: determining the another PE device is an assert winner from among the PE device and the another PE device based on at least one PIM assert message, the another PE device forwarding the multicast data packets.
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