公开(公告)号：US09792106B1

公开(公告)日：2017-10-17

申请号：US14450935

申请日：2014-08-04

Applicant: Cisco Technology, Inc.

Inventor： Raja Kommula ,  Chickayya Naik ,  Naren Mididaddi ,  Francesco Meo ,  Sharanya Subramanian

IPC: G06F9/445 ,  G06F1/24 ,  G06F9/44 ,  H04L12/24

CPC classification number: G06F8/65 ,  G06F1/24 ,  G06F8/656 ,  G06F9/4406 ,  H04L41/082 ,  H04L43/10

Abstract: A network device includes a control processor and a network processor unit (NPU) to forward network packets between network ports of the device. The processor downloads a new operating system (OS). The processor performs a fast upgrade to the new OS using a fast upgrade/reload technique to isolate the processor from interruptions and, without rebooting the processor, start the new OS in place of an existing OS. The fast upgrade/reload also includes delaying a reset of the NPU so that the NPU continues to route the network packets based on existing forwarding information. The fast upgrade/reload includes resetting the NPU only when the new OS first accesses the NPU, and then programming the reset NPU.

公开(公告)号：US09485292B2

公开(公告)日：2016-11-01

申请号：US14706170

申请日：2015-05-07

Applicant: Cisco Technology, Inc.

Inventor： Dileep K. Devireddy ,  Chickayya Naik ,  Giovanni Meo ,  Ashoka Kallappa

IPC: H04L29/06 ,  H04L29/08

CPC classification number: H04L65/60 ,  H04L29/06 ,  H04L29/08576 ,  H04L47/2458 ,  H04L47/70 ,  H04L63/0236 ,  H04L63/0823 ,  H04L65/4076 ,  H04L65/4084 ,  H04L65/80 ,  H04L67/10 ,  H04L67/141 ,  H04L67/2809 ,  H04L67/2814 ,  H04L67/42

Abstract: An apparatus and related method are provided for improving the performance of virtual desktop services. A network device is deployed in a network to intercept packets of a control session initiated by a client with a connection broker to obtain data from a host. The network device initiates a new control session to the connection broker on behalf of the client. The network device receives host information from the connection broker, replaces address information of the network device for the host information in a control session message and sends the control session message to the client. The network device establishes a data session with the client, initiates a data session with the host on behalf of the client and relays data between the data session with the host and the data session with the client such that the network device is transparent to the client and the host.

公开(公告)号：US20150237097A1

公开(公告)日：2015-08-20

申请号：US14706170

申请日：2015-05-07

Applicant: Cisco Technology, Inc.

Inventor： Dileep K. Devireddy ,  Chickayya Naik ,  Giovanni Meo ,  Ashoka Kallappa

IPC: H04L29/06 ,  H04L29/08

CPC classification number: H04L65/60 ,  H04L29/06 ,  H04L29/08576 ,  H04L47/2458 ,  H04L47/70 ,  H04L63/0236 ,  H04L63/0823 ,  H04L65/4076 ,  H04L65/4084 ,  H04L65/80 ,  H04L67/10 ,  H04L67/141 ,  H04L67/2809 ,  H04L67/2814 ,  H04L67/42

Abstract: An apparatus and related method are provided for improving the performance of virtual desktop services. A network device is deployed in a network to intercept packets of a control session initiated by a client with a connection broker to obtain data from a host. The network device initiates a new control session to the connection broker on behalf of the client. The network device receives host information from the connection broker, replaces address information of the network device for the host information in a control session message and sends the control session message to the client. The network device establishes a data session with the client, initiates a data session with the host on behalf of the client and relays data between the data session with the host and the data session with the client such that the network device is transparent to the client and the host.

Abstract translation: 提供了一种用于提高虚拟桌面服务性能的装置和相关方法。 网络设备部署在网络中以拦截由客户端发起的控制会话的数据包与连接代理程序，以从主机获取数据。 网络设备代表客户端向连接代理发起新的控制会话。 网络设备从连接代理接收主机信息，在控制会话消息中替换网络设备的主机信息的地址信息，并向客户端发送控制会话消息。 网络设备与客户端建立数据会话，代表客户端与主机发起数据会话，并在数据会话与主机之间中继数据，与客户端进行数据会话，使得网络设备对客户端透明 和主机。