公开(公告)号：US10419496B2

公开(公告)日：2019-09-17

申请号：US15186304

申请日：2016-06-17

Applicant: Cisco Technology, Inc.

Inventor： Murukanandam Panchalingam ,  Umamaheswararao Karyampudi ,  Pirabhu Raman ,  Sameer Merchant

IPC: H04L29/06 ,  H04L12/743

Abstract: Disclosed are systems, methods, and computer-readable storage media for guaranteeing symmetric bi-directional policy based redirect of traffic flows. A first switch connected to a first endpoint can receive a first data packet transmitted by the first endpoint to a second endpoint connected to a second switch. The first switch can enforce an ingress data policy to the first data packet by applying a hashing algorithm to a Source Internet Protocol (SIP) value and a Destination Internet Protocol (DIP) value of the first data packet, resulting in a hash value of the first data packet. The first switch can then route the first data packet to a first service node based on the hash value of the first data packet.

公开(公告)号：US20180139132A1

公开(公告)日：2018-05-17

申请号：US15855703

申请日：2017-12-27

Applicant: Cisco Technology, Inc.

Inventor： Thomas James Edsall ,  Navindra Yadav ,  Francisco M. Matus ,  Kit Chiu Chu ,  Michael R. Smith ,  Sameer Merchant ,  Krishna Doddapaneni ,  Satyam Sinha

IPC: H04L12/741 ,  H04L12/933 ,  H04L12/721 ,  H04L12/46 ,  G06F9/455

Abstract: Disclosed herein are methods of forwarding packets on a network, such as a leaf-spine network having leaf devices and spine devices. The methods may include receiving a packet at an ingress leaf device, and determining based, at least in part, on a header of the packet whether the packet is to be transmitted to a spine device. The methods may further include ascertaining based, at least in part, on a header of the packet whether to perform encapsulation on the packet, encapsulating the packet according to a result of the ascertaining, and then transmitting the packet to a spine device according to a result of the determining. Also disclosed herein are network apparatuses which include a processor and a memory, at least one of the processor or the memory being configured to perform some or all of the foregoing described methods.

公开(公告)号：US20170339054A1

公开(公告)日：2017-11-23

申请号：US15660901

申请日：2017-07-26

Applicant: Cisco Technology, Inc.

Inventor： Navindra Yadav ,  Sameer Merchant

IPC: H04L12/741 ,  H04L12/713

CPC classification number: H04L41/0806 ,  H04L41/0889 ,  H04L41/12 ,  H04L41/5048 ,  H04L41/5054 ,  H04L43/045 ,  H04L45/54 ,  H04L45/586 ,  H04L45/7453 ,  H04L47/125 ,  H04L47/21

Abstract: Systems, methods, and non-transitory computer-readable storage media for forwarding tables for virtual networking devices. The system first identifies local virtual machines hosted on a local host connected to the system, the system having virtual tunneling capabilities. The system then generates a forwarding table for the system. Next, the system populates the forwarding table with local entries including bindings for the local virtual machines hosted on the local host and adds a default route in the forwarding table pointing to a default forwarder function, wherein the default route is configured to handle all non-local traffic relative to the system and the local host.

公开(公告)号：US20150124826A1

公开(公告)日：2015-05-07

申请号：US14530550

申请日：2014-10-31

Applicant: Cisco Technology, Inc.

Inventor： Thomas James Edsall ,  Navindra Yadav ,  Francisco M. Matus ,  Kit Chiu Chu ,  Michael R. Smith ,  Sameer Merchant ,  Krishna Doddapaneni ,  Satyam Sinha

IPC: H04L12/741

CPC classification number: H04L45/74 ,  G06F9/45558 ,  G06F2009/45595 ,  H04L12/4633 ,  H04L45/66 ,  H04L49/10

Abstract: Disclosed herein are methods of forwarding packets on a network, such as a leaf-spine network having leaf devices and spine devices. The methods may include receiving a packet at an ingress leaf device, and determining based, at least in part, on a header of the packet whether the packet is to be transmitted to a spine device. The methods may further include ascertaining based, at least in part, on a header of the packet whether to perform encapsulation on the packet, encapsulating the packet according to a result of the ascertaining, and then transmitting the packet to a spine device according to a result of the determining. Also disclosed herein are network apparatuses which include a processor and a memory, at least one of the processor or the memory being configured to perform some or all of the foregoing described methods.

Abstract translation: 这里公开了在诸如具有叶装置和脊柱装置的叶脊网络的网络上转发分组的方法。 所述方法可以包括在入口叶设备处接收分组，以及至少部分地基于所述分组的报头确定所述分组是否要传送到脊柱设备。 所述方法可以进一步包括至少部分地基于分组的报头来确定是否对分组进行封装，根据确定的结果封装分组，然后根据所述分组将分组发送到脊柱设备 决定的结果。 本文还公开了包括处理器和存储器的网络设备，处理器或存储器中的至少一个被配置为执行前述所描述的方法中的一些或全部。

公开(公告)号：US20250119381A1

公开(公告)日：2025-04-10

申请号：US18986237

申请日：2024-12-18

Applicant: Cisco Technology, Inc.

Inventor： Sameer Merchant ,  Thomas James Edsall ,  Navindra Yadav

IPC: H04L45/745 ,  H04L61/103 ,  H04W64/00

Abstract: Disclosed herein are methods of forwarding data over an IP network. The methods may include receiving a packet from a source host connected to the IP network, identifying the IP address of a destination host designated in the packet, determining the location on the IP network where the destination host designated by the packet is connected, without reference to the MAC address specified in the packet, by using location-identification information stored on the IP network, and forwarding the packet to the location on the IP network where the destination host is connected without reference to the MAC address specified in the packet. Also disclosed herein are related network devices implementing such techniques and operations, as well as IP networks which include such network devices.

公开(公告)号：US12244496B2

公开(公告)日：2025-03-04

申请号：US17187332

申请日：2021-02-26

Applicant: Cisco Technology, Inc.

Inventor： Sameer Merchant ,  Thomas James Edsall ,  Navindra Yadav

IPC: H04L45/74 ,  H04L61/103

Abstract: Disclosed herein are methods of forwarding data over an IP network. The methods may include receiving a packet from a source host connected to the IP network, identifying the IP address of a destination host designated in the packet, determining the location on the IP network where the destination host designated by the packet is connected, without reference to the MAC address specified in the packet, by using location-identification information stored on the IP network, and forwarding the packet to the location on the IP network where the destination host is connected without reference to the MAC address specified in the packet. Also disclosed herein are related network devices implementing such techniques and operations, as well as IP networks which include such network devices.

公开(公告)号：US20210044625A1

公开(公告)日：2021-02-11

申请号：US17078982

申请日：2020-10-23

Applicant: Cisco Technology, Inc.

Inventor： Murukanandam Panchalingam ,  Umamaheswararao Karyampudi ,  Pirabhu Raman ,  Sameer Merchant

IPC: H04L29/06 ,  H04L12/743

Abstract: Disclosed are systems, methods, and computer-readable storage media for guaranteeing symmetric bi-directional policy based redirect of traffic flows. A first switch connected to a first endpoint can receive a first data packet transmitted by the first endpoint to a second endpoint connected to a second switch. The first switch can enforce an ingress data policy to the first data packet by applying a hashing algorithm to a Source Internet Protocol (SIP) value and a Destination Internet Protocol (DIP) value of the first data packet, resulting in a hash value of the first data packet. The first switch can then route the first data packet to a first service node based on the hash value of the first data packet.

公开(公告)号：US20200007591A1

公开(公告)日：2020-01-02

申请号：US16567995

申请日：2019-09-11

Applicant: Cisco Technology, Inc.

Inventor： Murukanandam Panchalingam ,  Umamaheswararao Karyampudi ,  Pirabhu Raman ,  Sameer Merchant

IPC: H04L29/06 ,  H04L12/743

Abstract: Disclosed are systems, methods, and computer-readable storage media for guaranteeing symmetric bi-directional policy based redirect of traffic flows. A first switch connected to a first endpoint can receive a first data packet transmitted by the first endpoint to a second endpoint connected to a second switch. The first switch can enforce an ingress data policy to the first data packet by applying a hashing algorithm to a Source Internet Protocol (SIP) value and a Destination Internet Protocol (DIP) value of the first data packet, resulting in a hash value of the first data packet. The first switch can then route the first data packet to a first service node based on the hash value of the first data packet.

公开(公告)号：US10374878B2

公开(公告)日：2019-08-06

申请号：US15660901

申请日：2017-07-26

Applicant: Cisco Technology, Inc.

Inventor： Navindra Yadav ,  Sameer Merchant

IPC: H04L12/28 ,  H04L12/24 ,  H04L12/743 ,  H04L12/803 ,  H04L12/819 ,  H04L12/26 ,  H04L12/741 ,  H04L12/713

Abstract: Systems, methods, and non-transitory computer-readable storage media for forwarding tables for virtual networking devices. The system first identifies local virtual machines hosted on a local host connected to the system, the system having virtual tunneling capabilities. The system then generates a forwarding table for the system. Next, the system populates the forwarding table with local entries including bindings for the local virtual machines hosted on the local host and adds a default route in the forwarding table pointing to a default forwarder function, wherein the default route is configured to handle all non-local traffic relative to the system and the local host.

公开(公告)号：US20170366506A1

公开(公告)日：2017-12-21

申请号：US15186304

申请日：2016-06-17

Applicant: Cisco Technology, Inc.

Inventor： Murukanandam Panchalingam ,  Umamaheswararao Karyampudi ,  Pirabhu Raman ,  Sameer Merchant

IPC: H04L29/06 ,  H04L12/743

CPC classification number: H04L65/1006 ,  H04L45/7453

Abstract: Disclosed are systems, methods, and computer-readable storage media for guaranteeing symmetric bi-directional policy based redirect of traffic flows. A first switch connected to a first endpoint can receive a first data packet transmitted by the first endpoint to a second endpoint connected to a second switch. The first switch can enforce an ingress data policy to the first data packet by applying a hashing algorithm to a Source Internet Protocol (SIP) value and a Destination Internet Protocol (DIP) value of the first data packet, resulting in a hash value of the first data packet. The first switch can then route the first data packet to a first service node based on the hash value of the first data packet.