公开(公告)号：US20150103644A1

公开(公告)日：2015-04-16

申请号：US14051896

申请日：2013-10-11

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Harsha Bharadwaj ,  Prabesh Babu Nanjundaiah ,  Sumanth Sindiri ,  Ankan Ghosh ,  Kishan Kumar Kotari Uppunda

IPC: H04L12/24 ,  H04L29/06

CPC classification number: H04L69/22 ,  H04L29/14 ,  H04L41/082 ,  H04L43/10 ,  H04L45/02 ,  H04L45/22 ,  H04L67/34

Abstract: In one example embodiment, a time unconstrained fabric switch software upgrade function is described for an in-switch-software-upgrade/downgrade (ISSU) in a network switch. Prior to an ISSU, Hello protocol data unit (PDU) information is stored for relevant control protocols of associated interfaces of the switch. The Hello PDU information comprises information on messages and data exchanged by the control protocols that may be used to maintain communications links of the switch. During the configuring of the ISSU, and while the control plane of the switch is, at least partially, dysfunctional, Hello PDUs are sent on the interfaces according to the stored PDU information in order to maintain the communication links. The Hello PDU information may include a time interval value for each relevant protocol that determines when Hello PDUs are sent.

Abstract translation: 在一个示例实施例中，描述了用于网络交换机中的交换机 - 软件升级/降级（ISSU）的时间无约束的网络交换机软件升级功能。 在ISSU之前，为交换机相关接口的相关控制协议存储Hello协议数据单元（PDU）信息。 Hello PDU信息包括关于可以用于维护交换机的通信链路的控制协议交换的消息和数据的信息。 在配置ISSU期间，并且交换机的控制平面至少部分地功能失调，根据存储的PDU信息在接口上发送Hello PDU，以便维护通信链路。 Hello PDU信息可以包括确定何时发送Hello PDU的每个相关协议的时间间隔值。

公开(公告)号：US09706016B2

公开(公告)日：2017-07-11

申请号：US14051896

申请日：2013-10-11

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Harsha Bharadwaj ,  Prabesh Babu Nanjundaiah ,  Sumanth Sindiri ,  Ankan Ghosh ,  Kishan Kumar Kotari Uppunda

IPC: H04L12/26 ,  H04L29/06 ,  H04L12/24 ,  H04L12/707 ,  H04L29/08 ,  H04L29/14 ,  H04L12/751

CPC classification number: H04L69/22 ,  H04L29/14 ,  H04L41/082 ,  H04L43/10 ,  H04L45/02 ,  H04L45/22 ,  H04L67/34

Abstract: In one example embodiment, a time unconstrained fabric switch software upgrade function is described for an in-switch-software-upgrade/downgrade (ISSU) in a network switch. Prior to an ISSU, Hello protocol data unit (PDU) information is stored for relevant control protocols of associated interfaces of the switch. The Hello PDU information comprises information on messages and data exchanged by the control protocols that may be used to maintain communications links of the switch. During the configuring of the ISSU, and while the control plane of the switch is, at least partially, dysfunctional, Hello PDUs are sent on the interfaces according to the stored PDU information in order to maintain the communication links. The Hello PDU information may include a time interval value for each relevant protocol that determines when Hello PDUs are sent.

公开(公告)号：US10594599B2

公开(公告)日：2020-03-17

申请号：US15248071

申请日：2016-08-26

Applicant: Cisco Technology, Inc.

Inventor： Kishan Kumar Kotari Uppunda ,  Karthik Subramani ,  Venu Gopal Tummala ,  Jayaprakash Nallapalingu ,  Sumanth Sindiri ,  Malipedy Vijaya Kumar

IPC: H04L12/703 ,  H04L12/707 ,  H04L12/931

Abstract: Presented herein are priority route based techniques for mitigation of slow drain devices in a Fibre Channel (FC) fabric comprising a plurality of FC switches. In accordance with examples presented herein, a first FC switch in a FC fabric receives an indication that a first computing device attached to the FC fabric has entered a slow drain condition. The first FC switch is configured to prepare and install a priority route for packet flows directed to the first computing device.

公开(公告)号：US20180063004A1

公开(公告)日：2018-03-01

申请号：US15248071

申请日：2016-08-26

Applicant: Cisco Technology, Inc.

Inventor： Kishan Kumar Kotari Uppunda ,  Karthik Subramani ,  Venu Gopal Tummala ,  Jayaprakash Nallapalingu ,  Sumanth Sindiri ,  Malipedy Vijaya Kumar

IPC: H04L12/851 ,  H04L12/931

Abstract: Presented herein are priority route based techniques for mitigation of slow drain devices in a Fibre Channel (FC) fabric comprising a plurality of FC switches. In accordance with examples presented herein, a first FC switch in a FC fabric receives an indication that a first computing device attached to the FC fabric has entered a slow drain condition. The first FC switch is configured to prepare and install a priority route for packet flows directed to the first computing device.