公开(公告)号：US20210367849A1

公开(公告)日：2021-11-25

申请号：US16878370

申请日：2020-05-19

Applicant: Cisco Technology, Inc.

Inventor： Sridar Kandaswamy ,  Sebastian Jeuk

IPC: H04L12/24 ,  H04L12/751

Abstract: Techniques are described herein for generating and modifying formal network topology models, and deploying network topologies based on the formal models across multiple workload resource domains. A topology deployment system may receive modification data for a deployed network topology, and analyze the modification data to determine whether the associated formal network topology model is to be recomputed. In some examples, modifications to a deployed network topology that do not impact operational performance or compromise functional equivalence with the underlying logical model, need not trigger a recomputation of the network topology model immediately and could be delayed. Modifications to deployed network topologies that do not trigger recomputations of the formal network topology model may be stored and tracked, so that subsequent recomputations of the model may incorporate the pending modifications.

公开(公告)号：US10992540B1

公开(公告)日：2021-04-27

申请号：US16878341

申请日：2020-05-19

Applicant: Cisco Technology, Inc.

Inventor： Sridar Kandaswamy ,  Sebastian Jeuk

IPC: H04L12/24 ,  H04L29/08

Abstract: Techniques for deploying, monitoring, and modifying network topologies operating across multi-domain environments using formal models and weighting factors assigned to computing elements in the network topologies. The weighting factors restrict or allow the movement of various computing elements and/or element groupings to prevent undesirable disruptions or outages in the network topologies. Generally, the weighting factors may be determined based on an amount of disruption experienced in the network topologies if the corresponding computing element or grouping was migrated. As the amount of disruption caused by modifying a particular computing element increases, the weighting factor represents a greater measure of resistivity for migrating the computing element. In this way, topology deployment systems may allow, or disallow, the modification of particular computing elements based on weighting factors. Thus, the amount of disruption in the functioning of network topologies may be considered when optimizing the allocation of computing elements across multi-domain environments.

公开(公告)号：US09148367B2

公开(公告)日：2015-09-29

申请号：US13633716

申请日：2012-10-02

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Sridar Kandaswamy ,  Rajasekhar Manam ,  Ramesh V. N. Ponnapalli

IPC: H04L12/721 ,  H04L29/06

CPC classification number: H04L45/38 ,  H04L69/22

Abstract: A method is provided in one example and includes receiving a first packet of a connection between a client and a server. The first packet is tagged with a tag comprising a member id of a service node in a service cluster that includes a plurality of nodes having distinct member ids. The method can also include mapping the member id to the service node in a tag-to-node map; receiving a second packet of the connection, where the second packet is tagged with the tag comprising the member id; determining the service node from the tag-to-node map; and forwarding the second packet to the service node.

Abstract translation: 在一个示例中提供了一种方法，并且包括接收客户端和服务器之间的连接的第一分组。 第一个分组被标记有包括服务集群中的服务节点的成员ID的标签，该服务集群包括具有不同成员ID的多个节点。 该方法还可以包括将成员标识映射到标签到节点映射中的服务节点; 接收所述连接的第二分组，其中所述第二分组被标签包括所述成员id的所述标签; 从所述标签到节点映射确定所述服务节点; 并将所述第二分组转发到所述服务节点。