公开(公告)号：US10887220B2

公开(公告)日：2021-01-05

申请号：US16127667

申请日：2018-09-11

Applicant: Cisco Technology, Inc.

Inventor： Reinaldo Penno ,  Carlos M. Pignataro

IPC: H04L12/725

Abstract: This disclosure pertains to augmenting metadata of a packet destined for service function chaining with application identifier information. The application identifier information can be added to the metadata of a packet service header (or, more specifically, a network service header). The packet can be exported to a statistics collector that can correlate statistical information about the application with statistical information about service functions applied to the packet, as well as other statistical information.

公开(公告)号：US10812378B2

公开(公告)日：2020-10-20

申请号：US16252036

申请日：2019-01-18

Applicant: Cisco Technology, Inc.

Inventor： Nagendra Kumar Nainar ,  Carlos M. Pignataro ,  James N. Guichard ,  Paul Quinn

IPC: H04L12/715 ,  H04L12/46

Abstract: An apparatus having logic elements to receive an incoming packet associated with a first service function chain; identify a next hop service function for the incoming packet as a non-reactive service function; create a duplicate packet; forward the duplicate packet to the non-reactive service function; and forward the incoming packet to a next reactive service function. An apparatus having logic to receive an incoming packet associated with a first service function chain (SFC), having a first service path identifier (SPI); determine that the incoming packet has a first service index (SI), and that a next-hop SI identifies a non-reactive service function (NRSF); receive a duplicate packet of the incoming packet; rewrite a service header of the duplicate packet to identify a second SFC having a second SPI; and alter the first SI of the incoming packet to identify a next reactive service function in the first SFC.

公开(公告)号：US10805215B2

公开(公告)日：2020-10-13

申请号：US15926292

申请日：2018-03-20

Applicant: Cisco Technology, Inc.

Inventor： Nagendra Kumar Nainar ,  Carlos M. Pignataro ,  Frank Brockners ,  Shwetha Subray Bhandari

IPC: H04L12/741 ,  H04L12/721 ,  H04L12/803 ,  H04L12/26

Abstract: Presented herein are techniques for monitoring packets in a container networking environment. A method includes receiving a packet at a network node, the packet having been routed to the network node in accordance with instructions from a container orchestration system, inserting an additional field in the packet that is configured to record a path of the packet within a first POD of the host device that includes at least one container, forwarding the packet to the first POD of the host device in accordance with the instructions from the container orchestration system, updating the additional field with container networking path information as the packet transits the first POD and the at least one container therein, storing the container path information in an analytics node of the network node, removing the additional field from the packet, and transmitting the packet from the network node to the network.

公开(公告)号：US20200312348A1

公开(公告)日：2020-10-01

申请号：US16363215

申请日：2019-03-25

Applicant: Cisco Technology, Inc.

Inventor： Qihong Shao ,  Pranjal Daga ,  Dmitry Goloubew ,  Anastasia Feygina ,  Antonio Nucci ,  Carlos M. Pignataro ,  Gyana R. Dash

IPC: G10L21/10 ,  H04L29/06 ,  G06F3/0484 ,  H04L29/08 ,  G06F17/27 ,  G10L15/16 ,  G10L15/18 ,  G10L15/22 ,  G06N20/00

Abstract: At a communication server, a first computer device and a second computer device are connected to a collaborative support session configured to support audio communications, screen sharing, and control of the first computer device by the second computer device. Screen sharing video image content is converted to a text sequence with timestamps. A text log with timestamps is generated from the text sequence. Using a command-based machine learning model, a sequence of commands and associated parameters, with timestamps, are determined from the text log. Audio is analyzed to produce speech-based information with timestamps. The command sequence is time-synchronized with the speech-based information based on the timestamps of the command sequence and the timestamps of the speech-based information. A knowledge report for the collaborative support session is generated. The knowledge report includes entries each including a timestamp, commands and associated parameters, and speech-based information that are time-synchronized to the timestamp.

公开(公告)号：US20200304408A1

公开(公告)日：2020-09-24

申请号：US16400386

申请日：2019-05-01

Applicant: Cisco Technology, Inc.

Inventor： Om Prakash Suthar ,  Arghya Mukherjee ,  Aeneas Dodd-Noble ,  Carlos M. Pignataro

IPC: H04L12/721 ,  H04L12/46 ,  H04L29/08 ,  H04W8/18 ,  H04L12/26

Abstract: Techniques associated with localizing data traffic for a time sensitive network within a virtualized radio access network are provided. In one embodiment, a method includes determining that a user equipment (UE) is associated with a time sensitive network; and localizing data traffic for the UE within a virtualized radio access network based on determining that the data traffic for the UE can be localized at one centralized user plane component of the virtualized radio access network for the time sensitive network. The data traffic can be Layer-2 data traffic or unstructured data traffic.

公开(公告)号：US10785701B2

公开(公告)日：2020-09-22

申请号：US16188627

申请日：2018-11-13

Applicant: Cisco Technology, Inc.

Inventor： Nagendra Kumar Nainar ,  Pascal Thubert ,  Carlos M. Pignataro

IPC: H04W40/26 ,  H04L12/715 ,  H04L12/753 ,  H04L12/707 ,  H04W40/04 ,  H04W40/34 ,  H04L12/741

Abstract: In one embodiment, a method is performed. A fat tree route miner (FT-RM) entity may be used to establish a control plane session with a first spine node in communication with a network. The FT-RM entity may identify a prefix that is unreachable by the first spine node. The FT-RM entity may instruct a spine node to disaggregate the prefix.

公开(公告)号：US20200267049A1

公开(公告)日：2020-08-20

申请号：US16278787

申请日：2019-02-19

Applicant: Cisco Technology, Inc.

Inventor： Raghavendra Suryanarayanarao ,  Om Prakash Suthar ,  Aeneas Sean Dodd-Noble ,  Vivek Agarwal ,  Rajiv Asati ,  Carlos M. Pignataro

IPC: H04L12/24 ,  H04W72/10 ,  H04W76/10 ,  H04L12/803

Abstract: Techniques are presented in which a new information element signaling priority of a management entity is included in a setup (e.g., S1-Setup) response or configuration update message sent by a management entity to a base station entity. The base station entity interprets this priority information along with the relative capacity information in an appropriate way to load-distribute the traffic/calls to highly preferable management entity instances (at a local site) when they are available, and switchover/failover to lower preference management entity instances (at a remote site) when there is a local site outage/failure or insufficient capacity in a geo-resilient pooled network.

公开(公告)号：US10749710B2

公开(公告)日：2020-08-18

申请号：US16231247

申请日：2018-12-21

Applicant: Cisco Technology, Inc.

Inventor： Carlos M. Pignataro ,  Frank Brockners ,  Shwetha Subray Bhandari ,  Nagendra Kumar Nainar

IPC: H04L12/46 ,  H04L12/54 ,  H04L12/749 ,  H04L12/70

Abstract: In one embodiment, a service function forwarder (SFF) analyzes pre-service state and post-service state of an original packet to determine whether to initiate and perform service offload or service bypass. A service function forwarder (SFF) receives a particular packet having a service function chain (SFC) encapsulation of the original packet, the SFC encapsulation identifying a particular service function path (SFP) designating a particular service function (SF). The SFF extracts pre-service state of the original packet, typically adding it to the particular packet in an In-Situ Operations, Administration, and Maintenance (IOAM) data field (or alternatively storing locally) before sending the particular packet to the particular SF. The SFF receives the particular packet after the SF applies the particular network service. In response to analyzing pre-service state and post-service state by the SFF, the SFF may perform service bypass or service offload for subsequently received packets identifying the same particular SFP.

公开(公告)号：US10694487B2

公开(公告)日：2020-06-23

申请号：US15265931

申请日：2016-09-15

Applicant: Cisco Technology, Inc.

Inventor： Matthew H. Birkner ,  Dmitri Goloubev ,  Carlos M. Pignataro ,  Gonzalo Salgueiro ,  Joseph M. Clarke

IPC: H04W64/00 ,  H04L12/26 ,  H04L12/24 ,  H04W24/04 ,  H04W24/08 ,  H04L1/24

Abstract: Presented herein are techniques for obtaining pertinent information from a network upon detection of an anomaly by receiving, at a first network node, configuration information sufficient to establish a data collection policy for the network node, capturing data, on the first network node, in accordance with the data collection policy to obtain captured data, detecting an anomaly occurring with respect to a second network node, and in response to detecting the anomaly, in transferring from the first network node, to an analysis server, collected data derived from the captured data based on both the data collection policy and a proximity metric indicating a logical distance between the first network node and the second network node.

公开(公告)号：US10693777B2

公开(公告)日：2020-06-23

申请号：US16018662

申请日：2018-06-26

Applicant: Cisco Technology, Inc.

Inventor： Carlos M. Pignataro ,  Nagendra Kumar Nainar

IPC: H04L12/721 ,  H04L29/06 ,  H04L29/08

Abstract: In one embodiment, a router receives a packet from a network device in a software defined architecture (SDA) network, and obtains iOAM data from an outer header of the packet, the iOAM data inserted into the outer header by one or more network devices that previously processed the packet. The router then copies the iOAM data into a locally pertinent header, and after determining local iOAM data of the router, appends the local iOAM data to the iOAM data copied into the locally pertinent header. The router may then process the packet accordingly. In another embodiment, an SDA router may insert an indication of one or more applied policies into an iOAM header of the packet, such that an edge router can determine any unapplied policies and subsequently apply them.