公开(公告)号：US10057208B2

公开(公告)日：2018-08-21

申请号：US14529725

申请日：2014-10-31

Applicant: Cisco Technology, Inc.

Inventor： Ralph Droms ,  Timothy P. Donahue

IPC: G06F15/173 ,  H04L29/12 ,  G06F17/30

CPC classification number: H04L61/1511 ,  H04L61/1541

Abstract: Techniques are provided for performing domain name system (DNS) service discovery based on policy evaluations. In an embodiment, policy data is represented as DNS-SD records and is used to control visibility of services for service requesting devices. The policy data may describe policies for a particular type of a service or a particular service delivery unit. The visibility of service delivery units is determined through evaluations of the policies in policy data. In some embodiments, additional metadata may be retrieved to be used in the policy evaluations. In certain embodiments, based on the policy evaluations service data about only a subset of service delivery units available is returned to a service requesting device in response to a DNS-SD query.

公开(公告)号：US20170317968A1

公开(公告)日：2017-11-02

申请号：US15652094

申请日：2017-07-17

Applicant: Cisco Technology, Inc.

Inventor： Ralph Droms ,  Timothy P. Donahue

IPC: H04L29/12 ,  H04L12/24

Abstract: Techniques are provided for performing dynamic DNS-SD. In an embodiment, an apparatus includes one or more databases, one or more transceivers to receive a first Domain Name System (DNS) query from a first computing device, the first DNS query defining a first service discovery name space, and one or more processors in communication with each of the one or more databases and the one or more transceivers. The one or more processors generate and append a first metadata associated with the first computing device to the first DNS query. The one or more transceivers transmit the first DNS query and the first metadata to a Domain Name System (DNS) server computer, receive, from the DNS server computer, a first response responsive to the first DNS query, and relay, to the first computing device, the first response.

公开(公告)号：US10742592B2

公开(公告)日：2020-08-11

申请号：US15652094

申请日：2017-07-17

Applicant: Cisco Technology, Inc.

Inventor： Ralph Droms ,  Timothy P. Donahue

IPC: H04L29/12 ,  H04L12/24

Abstract: Techniques are provided for performing dynamic DNS-SD. In an embodiment, an apparatus includes one or more databases, one or more transceivers to receive a first Domain Name System (DNS) query from a first computing device, the first DNS query defining a first service discovery name space, and one or more processors in communication with each of the one or more databases and the one or more transceivers. The one or more processors generate and append a first metadata associated with the first computing device to the first DNS query. The one or more transceivers transmit the first DNS query and the first metadata to a Domain Name System (DNS) server computer, receive, from the DNS server computer, a first response responsive to the first DNS query, and relay, to the first computing device, the first response.

公开(公告)号：US09712485B2

公开(公告)日：2017-07-18

申请号：US14447475

申请日：2014-07-30

Applicant: Cisco Technology, Inc.

Inventor： Ralph Droms ,  Timothy P. Donahue

IPC: G06F15/16 ,  H04L29/12 ,  H04L12/24

CPC classification number: H04L61/1511 ,  H04L41/12 ,  H04L61/1541 ,  H04L61/2076

Abstract: Techniques are provided for performing dynamic DNS-SD. In an embodiment, an apparatus includes one or more databases, one or more transceivers to receive a first Domain Name System (DNS) query from a first computing device, the first DNS query defining a first service discovery name space, and one or more processors in communication with each of the one or more databases and the one or more transceivers. The one or more processors generate and append a first metadata associated with the first computing device to the first DNS query. The one or more transceivers transmit the first DNS query and the first metadata to a Domain Name System (DNS) server computer, receive, from the DNS server computer, a first response responsive to the first DNS query, and relay, to the first computing device, the first response.

公开(公告)号：US20160036762A1

公开(公告)日：2016-02-04

申请号：US14447475

申请日：2014-07-30

Applicant: Cisco Technology, Inc.

Inventor： Ralph Droms ,  Timothy P. Donahue

IPC: H04L29/12 ,  H04L12/24

CPC classification number: H04L61/1511 ,  H04L41/12 ,  H04L61/1541 ,  H04L61/2076

Abstract: Techniques are provided for performing dynamic DNS-SD. In an embodiment, an apparatus includes one or more databases, one or more transceivers to receive a first Domain Name System (DNS) query from a first computing device, the first DNS query defining a first service discovery name space, and one or more processors in communication with each of the one or more databases and the one or more transceivers. The one or more processors generate and append a first metadata associated with the first computing device to the first DNS query. The one or more transceivers transmit the first DNS query and the first metadata to a Domain Name System (DNS) server computer, receive, from the DNS server computer, a first response responsive to the first DNS query, and relay, to the first computing device, the first response.

Abstract translation: 提供了用于执行动态DNS-SD的技术。 在一个实施例中，一种装置包括一个或多个数据库，一个或多个收发器，用于从第一计算设备接收第一域名系统（DNS）查询，第一DNS查询定义第一服务发现名称空间，以及一个或多个处理器 与一个或多个数据库和一个或多个收发器中的每一个通信。 一个或多个处理器生成并附加与第一计算设备相关联的第一元数据到第一DNS查询。 一个或多个收发器将第一DNS查询和第一元数据发送到域名系统（DNS）服务器计算机，从DNS服务器计算机接收响应于第一DNS查询的第一响应，并将其中继到第一计算 设备，第一反应。