公开(公告)号：US10757017B2

公开(公告)日：2020-08-25

申请号：US16174713

申请日：2018-10-30

Applicant: Cisco Technology, Inc.

Inventor： Mitesh Mukesh Kanjariya ,  Ashutosh Gupta ,  Manoj Kumar Pandey

IPC: H04L12/28 ,  H04L12/723 ,  H04L12/46 ,  H04L12/18 ,  H04L12/755 ,  H04L12/751

Abstract: Embodiments of the present disclosure relate to assisting forwarding of multicast traffic over Ethernet Virtual Private Network (EVPN) from a multicast source to a host multi-homed to multiple provider edge (PE) devices. Embodiments are based on the inclusion of an Ethernet Segment Identification (ESI) to EVPN type-6 routes advertised by PE devices which received a multicast Join message. Other PE devices receiving such routes are able to determine whether they belong to the ES identified by the ESI and to determine whether they are designated forwarders (DFs) for the host. Furthermore, PE devices which are the DFs are configured to re-originate the EVPN type-6 routes, i.e. re-send the advertisements, indicating themselves as DFs. This ensures that a remote PE device associated with the multicast source will also send multicast traffic to such DF PE devices, which, in turn, would allow the multicast traffic to successfully reach the host.

公开(公告)号：US20180041360A1

公开(公告)日：2018-02-08

申请号：US15226734

申请日：2016-08-02

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Naiming Shen ,  Stig I. Venaas ,  Ashutosh Gupta

IPC: H04L12/44 ,  H04L12/743 ,  H04L12/18

Abstract: Aspects of the embodiments are directed to systems, methods, and network elements executing instructions stored thereon. Aspects are directed to, for each spine node connected to a leaf node network element, identifying a spine router identifier, identifying a multicast group address, computing a plurality of hash values based on a hash function using the spine router identifier and the multicast group address, identifying a root spine node based on a highest hash value from the plurality of hash values; and transmitting an IS-IS message to root spine node indicating election of spine node as the root spine node.

公开(公告)号：US11381500B2

公开(公告)日：2022-07-05

申请号：US16911794

申请日：2020-06-25

Applicant: Cisco Technology, Inc.

Inventor： Mitesh Mukesh Kanjariya ,  Ashutosh Gupta ,  Manoj Kumar Pandey

IPC: H04L12/26 ,  H04L45/50 ,  H04L12/46 ,  H04L12/18 ,  H04L45/021 ,  H04L45/02

Abstract: Embodiments of the present disclosure relate to assisting forwarding of multicast traffic over Ethernet Virtual Private Network (EVPN) from a multicast source to a host multi-homed to multiple provider edge (PE) devices. Embodiments are based on the inclusion of an Ethernet Segment Identification (ESI) to EVPN type-6 routes advertised by PE devices which received a multicast Join message. Other PE devices receiving such routes are able to determine whether they belong to the ES identified by the ESI and to determine whether they are designated forwarders (DFs) for the host. Furthermore, PE devices which are the DFs are configured to re-originate the EVPN type-6 routes, i.e. re-send the advertisements, indicating themselves as DFs. This ensures that a remote PE device associated with the multicast source will also send multicast traffic to such DF PE devices, which, in turn, would allow the multicast traffic to successfully reach the host.

公开(公告)号：US20190075047A1

公开(公告)日：2019-03-07

申请号：US16174713

申请日：2018-10-30

Applicant: Cisco Technology, Inc.

Inventor： Mitesh Mukesh Kanjariya ,  Ashutosh Gupta ,  Manoj Kumar Pandey

IPC: H04L12/723 ,  H04L12/751 ,  H04L12/46

CPC classification number: H04L45/50 ,  H04L12/185 ,  H04L12/462 ,  H04L12/4633 ,  H04L12/4641 ,  H04L12/4662 ,  H04L45/02 ,  H04L45/021

Abstract: Embodiments of the present disclosure relate to assisting forwarding of multicast traffic over Ethernet Virtual Private Network (EVPN) from a multicast source to a host multi-homed to multiple provider edge (PE) devices. Embodiments are based on the inclusion of an Ethernet Segment Identification (ESI) to EVPN type-6 routes advertised by PE devices which received a multicast Join message. Other PE devices receiving such routes are able to determine whether they belong to the ES identified by the ESI and to determine whether they are designated forwarders (DFs) for the host. Furthermore, PE devices which are the DFs are configured to re-originate the EVPN type-6 routes, i.e. re-send the advertisements, indicating themselves as DFs. This ensures that a remote PE device associated with the multicast source will also send multicast traffic to such DF PE devices, which, in turn, would allow the multicast traffic to successfully reach the host.

公开(公告)号：US10164876B2

公开(公告)日：2018-12-25

申请号：US15374648

申请日：2016-12-09

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Mitesh Mukesh Kanjariya ,  Ashutosh Gupta ,  Manoj Kumar Pandey

IPC: H04L12/26 ,  H04L12/723 ,  H04L12/46 ,  H04L12/18 ,  H04L12/755

Abstract: Embodiments of the present disclosure relate to assisting forwarding of multicast traffic over Ethernet Virtual Private Network (EVPN) from a multicast source to a host multi-homed to multiple provider edge (PE) devices. Embodiments are based on the inclusion of an Ethernet Segment Identification (ESI) to EVPN type-6 routes advertised by PE devices which received a multicast Join message. Other PE devices receiving such routes are able to determine whether they belong to the ES identified by the ESI and to determine whether they are designated forwarders (DFs) for the host. Furthermore, PE devices which are the DFs are configured to re-originate the EVPN type-6 routes, i.e. re-send the advertisements, indicating themselves as DFs. This ensures that a remote PE device associated with the multicast source will also send multicast traffic to such DF PE devices, which, in turn, would allow the multicast traffic to successfully reach the host.

公开(公告)号：US20180167315A1

公开(公告)日：2018-06-14

申请号：US15374648

申请日：2016-12-09

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Mitesh Mukesh Kanjariya ,  Ashutosh Gupta ,  Manoj Kumar Pandey

IPC: H04L12/723 ,  H04L12/46 ,  H04L12/18 ,  H04L12/755

CPC classification number: H04L45/50 ,  H04L12/185 ,  H04L12/462 ,  H04L12/4633 ,  H04L12/4641 ,  H04L45/02 ,  H04L45/021

Abstract: Embodiments of the present disclosure relate to assisting forwarding of multicast traffic over Ethernet Virtual Private Network (EVPN) from a multicast source to a host multi-homed to multiple provider edge (PE) devices. Embodiments are based on the inclusion of an Ethernet Segment Identification (ESI) to EVPN type-6 routes advertised by PE devices which received a multicast Join message. Other PE devices receiving such routes are able to determine whether they belong to the ES identified by the ESI and to determine whether they are designated forwarders (DFs) for the host. Furthermore, PE devices which are the DFs are configured to re-originate the EVPN type-6 routes, i.e. re-send the advertisements, indicating themselves as DFs. This ensures that a remote PE device associated with the multicast source will also send multicast traffic to such DF PE devices, which, in turn, would allow the multicast traffic to successfully reach the host.

公开(公告)号：US20200328968A1

公开(公告)日：2020-10-15

申请号：US16911794

申请日：2020-06-25

Applicant: Cisco Technology, Inc.

Inventor： Mitesh Mukesh Kanjariya ,  Ashutosh Gupta ,  Manoj Kumar Pandey

IPC: H04L12/723 ,  H04L12/46 ,  H04L12/18 ,  H04L12/755 ,  H04L12/751

Abstract: Embodiments of the present disclosure relate to assisting forwarding of multicast traffic over Ethernet Virtual Private Network (EVPN) from a multicast source to a host multi-homed to multiple provider edge (PE) devices. Embodiments are based on the inclusion of an Ethernet Segment Identification (ESI) to EVPN type-6 routes advertised by PE devices which received a multicast Join message. Other PE devices receiving such routes are able to determine whether they belong to the ES identified by the ESI and to determine whether they are designated forwarders (DFs) for the host. Furthermore, PE devices which are the DFs are configured to re-originate the EVPN type-6 routes, i.e. re-send the advertisements, indicating themselves as DFs. This ensures that a remote PE device associated with the multicast source will also send multicast traffic to such DF PE devices, which, in turn, would allow the multicast traffic to successfully reach the host.

公开(公告)号：US10516549B2

公开(公告)日：2019-12-24

申请号：US15226734

申请日：2016-08-02

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Naiming Shen ,  Stig I. Venaas ,  Ashutosh Gupta

IPC: H04L12/44 ,  H04L12/18 ,  H04L12/743

Abstract: Aspects of the embodiments are directed to systems, methods, and network elements executing instructions stored thereon. Aspects are directed to, for each spine node connected to a leaf node network element, identifying a spine router identifier, identifying a multicast group address, computing a plurality of hash values based on a hash function using the spine router identifier and the multicast group address, identifying a root spine node based on a highest hash value from the plurality of hash values; and transmitting an IS-IS message to root spine node indicating election of spine node as the root spine node.