公开(公告)号：US20220174016A1

公开(公告)日：2022-06-02

申请号：US17106651

申请日：2020-11-30

Applicant: Cisco Technology, Inc.

Inventor： Amila Pradeep Kumara Tharaperiya Gamage ,  Darren Russell Dukes

IPC: H04L12/851 ,  H04L12/801 ,  H04L12/721 ,  H04L29/12

Abstract: Techniques for optimizing segment routing (SR) paths using segment identifiers (SIDs) are disclosed, including determining a packet is to be sent from a first node to a second node of a network using an SR method. The techniques may also include determining a segment quantization factor that is representative of a first number of SIDs that are included in a segment quantization interval. Based at least in part on the segment quantization factor and a cost constraint, an SR path defined by a second number of SIDs to send the packet may be determined. The second number of SIDs may be associated with maximizing the SIDs included in individual ones of segment quantization intervals. The techniques further include modifying the packet to include at least the second number of SIDs and causing the packet to flow from the first node to the second node via the SR path.

公开(公告)号：US11070422B2

公开(公告)日：2021-07-20

申请号：US16571365

申请日：2019-09-16

Applicant: Cisco Technology, Inc.

Inventor： Oliver James Bull ,  Rex Emmanuel Fernando ,  Anand Oswal ,  Kausik Majumdar ,  Darren Russell Dukes ,  Sanjay Kumar Hooda

IPC: H04L12/26 ,  H04L12/24 ,  H04L12/851 ,  H04L12/815 ,  H04L12/813 ,  H04W84/04 ,  H04W88/16

Abstract: An enterprise controller of an enterprise network sends to a service gateway of a service provider network a request for network slice information about network slices provisioned on a data plane of the service provider network. Responsive to the sending, the enterprise controller receives from the service gateway the network slice information including identifiers of and properties associated with the network slices. Responsive to receiving a request for the network slice information from a network device at a border of a forwarding plane of the enterprise network, the enterprise controller sends the network slice information to the network device to cause the network device to perform configuring network traffic in the forwarding plane with identifiers of ones of the network slices that match the network traffic, and to perform forwarding the network traffic configured with the identifiers to the data plane of the service provider network.