公开(公告)号：US20180091420A1

公开(公告)日：2018-03-29

申请号：US15368282

申请日：2016-12-02

Applicant: Juniper Networks, Inc.

Inventor： John E. Drake ,  Eric C. Rosen ,  William Stuart Mackie ,  Adrian Farrel

IPC: H04L12/741 ,  H04L29/08 ,  H04L12/54 ,  H04L12/721

Abstract: In some examples, a computing device comprises a first service function instance to apply a service function and a service function forwarder to: receive a first layer 3 routing protocol route advertisement that includes service function instance data for a second service function instance, the service function instance data indicating a service function type and a service identifier for the service function instance; receive a second layer 3 routing protocol route advertisement that includes service function chain data for a service function chain, the service function chain data indicating a service path identifier and one or more service function items; and send, to the second service function instance and based at least on determining a service function item of the one or more service function items indicates the second service function instance, a packet classified to the service function chain.

公开(公告)号：US09369380B1

公开(公告)日：2016-06-14

申请号：US14930080

申请日：2015-11-02

Applicant: Juniper Networks, Inc.

Inventor： Ravi Singh ,  John E. Drake ,  Adrian Farrel ,  Yimin Shen

IPC: H04L12/723 ,  H04L12/803 ,  H04L29/08

CPC classification number: H04L45/50 ,  H04L12/4633 ,  H04L47/125 ,  H04L67/1002 ,  H04L69/22

Abstract: In one example, a stitching point routing device, which stitches a previous segment of an end-to-end label-switched path (LSP) to a next segment of the end-to-end LSP, includes network interfaces configured to receive packets via the previous segment and send packets via the next segment, and one or more processors configured to determine whether the next segment supports entropy labels, determine whether a packet received from the previous segment is encapsulated by a label stack including an entropy label, when the next segment does not support entropy labels and when the packet is encapsulated by the label stack including the entropy label, remove the entropy label from the label stack, when the next segment supports entropy labels and when the packet is not encapsulated by the label stack including the entropy label, add an entropy label to the label stack, and forward the packet along the next segment.

公开(公告)号：US11277338B2

公开(公告)日：2022-03-15

申请号：US15368282

申请日：2016-12-02

Applicant: Juniper Networks, Inc.

Inventor： John E. Drake ,  Eric C. Rosen ,  William Stuart Mackie ,  Adrian Farrel

IPC: H04L12/741 ,  H04L29/08 ,  H04L12/54 ,  H04L12/721 ,  H04L45/74 ,  H04L45/00 ,  H04L67/10 ,  H04L45/30 ,  H04L45/64 ,  H04L67/63 ,  H04L69/325 ,  H04L41/5054

Abstract: In some examples, a computing device comprises a first service function instance to apply a service function and a service function forwarder to: receive a first layer 3 routing protocol route advertisement that includes service function instance data for a second service function instance, the service function instance data indicating a service function type and a service identifier for the service function instance; receive a second layer 3 routing protocol route advertisement that includes service function chain data for a service function chain, the service function chain data indicating a service path identifier and one or more service function items; and send, to the second service function instance and based at least on determining a service function item of the one or more service function items indicates the second service function instance, a packet classified to the service function chain.

公开(公告)号：US09178810B1

公开(公告)日：2015-11-03

申请号：US13952254

申请日：2013-07-26

Applicant: Juniper Networks, Inc.

Inventor： Ravi Singh ,  John E. Drake ,  Adrian Farrel ,  Yimin Shen

IPC: H04L12/723 ,  H04L12/803 ,  H04L29/08

CPC classification number: H04L45/50 ,  H04L12/4633 ,  H04L47/125 ,  H04L67/1002 ,  H04L69/22

Abstract: In one example, a stitching point routing device, which stitches a previous segment of an end-to-end label-switched path (LSP) to a next segment of the end-to-end LSP, includes network interfaces configured to receive packets via the previous segment and send packets via the next segment, and one or more processors configured to determine whether the next segment supports entropy labels, determine whether a packet received from the previous segment is encapsulated by a label stack including an entropy label, when the next segment does not support entropy labels and when the packet is encapsulated by the label stack including the entropy label, remove the entropy label from the label stack, when the next segment supports entropy labels and when the packet is not encapsulated by the label stack including the entropy label, add an entropy label to the label stack, and forward the packet along the next segment.

Abstract translation: 在一个示例中，将端到端标签交换路径（LSP）的先前段缝合到端到端LSP的下一段的拼接点路由设备包括被配置为经由 前一段并经由下一段发送数据包，以及一个或多个处理器，被配置为确定下一个段是否支持熵标签，确定从前一段接收到的数据包是否被包含熵标签的标签栈封装，当下一个段 段不支持熵标签，并且当分组被包括熵标签的标签栈封装在一起时，从标签堆栈中移除熵标签，当下一个段支持熵标签时，并且当该分组未被标签栈封装时，包括 熵标签，向标签栈添加熵标签，并沿着下一个段转发数据包。