公开(公告)号：US08943490B1

公开(公告)日：2015-01-27

申请号：US13631752

申请日：2012-09-28

Applicant: Juniper Networks, Inc.

Inventor： Amit Jain ,  Rajagopalan Sivaramakrishnan ,  Abhiman Yashpala Karkera ,  Siva Madasamy

IPC: G06F9/45

CPC classification number: G06F8/65 ,  H04Q3/54516

Abstract: In general, techniques are described for performing a controlled non-stop software upgrade (NSSU) of a network device. In some examples, a method includes receiving, by a first network device included in a virtual network device, a non-stop software upgrade (NSSU) request. The first network device is communicatively coupled to each of a computing device and a second network device. The method includes, in response to receiving the NSSU request, forwarding to the second network device, network packets that are received at the first network device and destined to the computing device. The method also includes sending a message to the computing device that instructs the computing device to stop sending network packets to the first network device. The method includes updating one or more software components within the first network device, after sending the message to the computing device and based at least in part on the NSSU request.

Abstract translation: 通常，描述了用于执行网络设备的受控不间断软件升级（NSSU）的技术。 在一些示例中，一种方法包括由虚拟网络设备中包括的第一网络设备接收不间断软件升级（NSSU）请求。 第一网络设备通信地耦合到计算设备和第二网络设备中的每一个。 所述方法包括：响应于接收到所述NSSU请求，向所述第二网络设备转发在所述第一网络设备处接收并发往所述计算设备的网络分组。 该方法还包括向计算设备发送指示计算设备停止向第一网络设备发送网络分组的消息。 该方法包括在将消息发送到计算设备之后至少部分地基于NSSU请求来更新第一网络设备内的一个或多个软件组件。