公开(公告)号：US09906378B2

公开(公告)日：2018-02-27

申请号：US14813268

申请日：2015-07-30

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Alfred C. Lindem, III ,  Peter Psenak ,  Ijsbrand Wijnands

IPC: H04L12/46 ,  H04L12/721 ,  H04L12/751

CPC classification number: H04L12/4633 ,  H04L45/02 ,  H04L45/127

Abstract: Various systems and methods for bypassing one or more non-capable nodes. For example, one method involves a capable node determining that an adjacent node is non-capable, where capable nodes are configured to implement a data plane capability and non-capable nodes are not. The method then involves identifying a downstream node that is capable. The downstream node is on a shortest path. The method also involves generating information that identifies a tunnel to the downstream node.

公开(公告)号：US20170346718A1

公开(公告)日：2017-11-30

申请号：US15165794

申请日：2016-05-26

Applicant: Cisco Technology, Inc.

Inventor： Peter Psenak ,  Robert Hanzl ,  Clarence Filsfils ,  Ketan Jivan Talaulikar

IPC: H04L12/721 ,  H04L12/751

CPC classification number: H04L45/12 ,  H04L45/02

Abstract: Various systems and methods for using strict path forwarding. For example, one method involves receiving an advertisement at a node. The advertisement includes a segment identifier (SID). In response to receiving the advertisement, the node determines whether the SID is a strict SID or not. If the SID is a strict SID, the node generates information, such as forwarding information, that indicates how to forward packets along a strict shortest path corresponding to the strict SID.