公开(公告)号：US10148566B2

公开(公告)日：2018-12-04

申请号：US15055061

申请日：2016-02-26

Applicant: Juniper Networks, Inc.

Inventor： Babu Singarayan ,  Tapraj Singh ,  Vikas Vidyalal Patel ,  Swamy Sadashivaiah Renu Kananda

IPC: H04L12/721 ,  H04L12/46 ,  H04L12/707

Abstract: Techniques are described to provide split-horizon packet forwarding so as to ensure that packets from the customer network that are injected into the provider backbone bridging Ethernet Virtual Private Network (PBB-EVPN) by one of the provider edge (PE) devices of the multi-homed Ethernet segment are not forwarded back toward the customer network by a different PE device connected to the same multi-homed Ethernet segment. For example, a method may comprise receiving a packet via a core-facing interface of a first PE device, determining the Ethernet segment associated with the PE devices by a lookup operation based on keys of the packet; in response to determining the Ethernet segment, supplanting the core-facing interface of the first PE device with a virtual interface associated with the keys, and forwarding the packet to a second CE device without forwarding the received packet back to the Ethernet segment associated with the first PE device.

公开(公告)号：US09900170B2

公开(公告)日：2018-02-20

申请号：US15060365

申请日：2016-03-03

Applicant: Juniper Networks, Inc

Inventor： Maruthi Kishore Tiruveedhula ,  Tapraj Singh ,  Sunesh Rustagi ,  Arijit Paul ,  Vikas Vidyalal Patel ,  Himanshu Agarwal ,  Suneel Kumar Pentala

IPC: H04L12/18 ,  H04L12/751 ,  H04L12/741 ,  H04L12/721 ,  H04L29/12

CPC classification number: H04L12/1886 ,  H04L45/02 ,  H04L45/08 ,  H04L45/66 ,  H04L45/745 ,  H04L61/2069 ,  H04L61/6022

Abstract: In one example, a method includes performing L2 learning of a C-MAC address included in a first L2 data message by a first provider edge (PE) router included in an Ethernet Segment of a Provider-Backbone Bridging Ethernet Virtual Private Network (PBB-EVPN); sending to a second PE router within the Ethernet Segment an L2 control message comprising the C-MAC address and a B-MAC address corresponding to the Ethernet Segment of the PBB-EVPN, wherein the L2 control message informs the second PE router of the reachability of the C-MAC address through the first PE router; receiving, by the first PE router and from the second PE router, a second L2 data message as unicast traffic destined for the C-MAC address; and forwarding the second L2 data message to the first CE router.

公开(公告)号：US20170250904A1

公开(公告)日：2017-08-31

申请号：US15055061

申请日：2016-02-26

Applicant: Juniper Networks, Inc.

Inventor： Babu Singarayan ,  Tapraj Singh ,  Vikas Vidyalal Patel ,  Swamy Sadashivaiah Renu Kananda

IPC: H04L12/721 ,  H04L12/707 ,  H04L12/46

CPC classification number: H04L45/66 ,  H04L12/4641 ,  H04L45/22

Abstract: Techniques are described to provide split-horizon packet forwarding so as to ensure that packets from the customer network that are injected into the provider backbone bridging Ethernet Virtual Private Network (PBB-EVPN) by one of the provider edge (PE) devices of the multi-homed Ethernet segment are not forwarded back toward the customer network by a different PE device connected to the same multi-homed Ethernet segment. For example, a method may comprise receiving a packet via a core-facing interface of a first PE device, determining the Ethernet segment associated with the PE devices by a lookup operation based on keys of the packet; in response to determining the Ethernet segment, supplanting the core-facing interface of the first PE device with a virtual interface associated with the keys, and forwarding the packet to a second CE device without forwarding the received packet back to the Ethernet segment associated with the first PE device.

公开(公告)号：US10135627B2

公开(公告)日：2018-11-20

申请号：US15898856

申请日：2018-02-19

Applicant: Juniper Networks, Inc.

Inventor： Maruthi Kishore Tiruveedhula ,  Tapraj Singh ,  Sunesh Rustagi ,  Arijit Paul ,  Vikas Vidyalal Patel ,  Himanshu Agarwal ,  Suneel Kumar Pentala

IPC: H04L12/18 ,  H04L12/721 ,  H04L29/12 ,  H04L12/741 ,  H04L12/751

Abstract: In one example, a method includes performing L2 learning of a C-MAC address included in a first L2 data message by a first provider edge (PE) router included in an Ethernet Segment of a Provider-Backbone Bridging Ethernet Virtual Private Network (PBB-EVPN); sending to a second PE router within the Ethernet Segment an L2 control message comprising the C-MAC address and a B-MAC address corresponding to the Ethernet Segment of the PBB-EVPN, wherein the L2 control message informs the second PE router of the reachability of the C-MAC address through the first PE router; receiving, by the first PE router and from the second PE router, a second L2 data message as unicast traffic destined for the C-MAC address; and forwarding the second L2 data message to the first CE router.

公开(公告)号：US20180176028A1

公开(公告)日：2018-06-21

申请号：US15898856

申请日：2018-02-19

Applicant: Juniper Networks, Inc.

Inventor： Maruthi Kishore Tiruveedhula ,  Tapraj Singh ,  Sunesh Rustagi ,  Arijit Paul ,  Vikas Vidyalal Patel ,  Himanshu Agarwal ,  Suneel Kumar Pentala

IPC: H04L12/18 ,  H04L12/721 ,  H04L29/12 ,  H04L12/741 ,  H04L12/751

CPC classification number: H04L12/1886 ,  H04L45/02 ,  H04L45/08 ,  H04L45/66 ,  H04L45/745 ,  H04L61/2069 ,  H04L61/6022

Abstract: In one example, a method includes performing L2 learning of a C-MAC address included in a first L2 data message by a first provider edge (PE) router included in an Ethernet Segment of a Provider-Backbone Bridging Ethernet Virtual Private Network (PBB-EVPN); sending to a second PE router within the Ethernet Segment an L2 control message comprising the C-MAC address and a B-MAC address corresponding to the Ethernet Segment of the PBB-EVPN, wherein the L2 control message informs the second PE router of the reachability of the C-MAC address through the first PE router; receiving, by the first PE router and from the second PE router, a second L2 data message as unicast traffic destined for the C-MAC address; and forwarding the second L2 data message to the first CE router.

公开(公告)号：US09935783B2

公开(公告)日：2018-04-03

申请号：US15060365

申请日：2016-03-03

Applicant: Juniper Networks, Inc

Inventor： Maruthi Kishore Tiruveedhula ,  Tapraj Singh ,  Sunesh Rustagi ,  Arijit Paul ,  Vikas Vidyalal Patel ,  Himanshu Agarwal ,  Suneel Kumar Pentala

IPC: H04L12/18 ,  H04L12/751 ,  H04L12/741 ,  H04L12/721 ,  H04L29/12

CPC classification number: H04L12/1886 ,  H04L45/02 ,  H04L45/08 ,  H04L45/66 ,  H04L45/745 ,  H04L61/2069 ,  H04L61/6022

Abstract: In one example, a method includes performing L2 learning of a C-MAC address included in a first L2 data message by a first provider edge (PE) router included in an Ethernet Segment of a Provider-Backbone Bridging Ethernet Virtual Private Network (PBB-EVPN); sending to a second PE router within the Ethernet Segment an L2 control message comprising the C-MAC address and a B-MAC address corresponding to the Ethernet Segment of the PBB-EVPN, wherein the L2 control message informs the second PE router of the reachability of the C-MAC address through the first PE router; receiving, by the first PE router and from the second PE router, a second L2 data message as unicast traffic destined for the C-MAC address; and forwarding the second L2 data message to the first CE router.

公开(公告)号：US20170201389A1

公开(公告)日：2017-07-13

申请号：US15060365

申请日：2016-03-03

Applicant: Juniper Networks, Inc

Inventor： Maruthi Kishore Tiruveedhula ,  Tapraj Singh ,  Sunesh Rustagi ,  Arijit Paul ,  Vikas Vidyalal Patel ,  Himanshu Agarwal ,  Suneel Kumar Pentala

IPC: H04L12/18 ,  H04L29/12 ,  H04L12/721 ,  H04L12/751 ,  H04L12/741

CPC classification number: H04L12/1886 ,  H04L45/02 ,  H04L45/08 ,  H04L45/66 ,  H04L45/745 ,  H04L61/2069 ,  H04L61/6022

Abstract: In one example, a method includes performing L2 learning of a C-MAC address included in a first L2 data message by a first provider edge (PE) router included in an Ethernet Segment of a Provider-Backbone Bridging Ethernet Virtual Private Network (PBB-EVPN); sending to a second PE router within the Ethernet Segment an L2 control message comprising the C-MAC address and a B-MAC address corresponding to the Ethernet Segment of the PBB-EVPN, wherein the L2 control message informs the second PE router of the reachability of the C-MAC address through the first PE router; receiving, by the first PE router and from the second PE router, a second L2 data message as unicast traffic destined for the C-MAC address; and forwarding the second L2 data message to the first CE router.