REDUCING FLOODING OF LINK STATE CHANGES IN NETWORKS

    公开(公告)号:US20180115481A1

    公开(公告)日:2018-04-26

    申请号:US15332295

    申请日:2016-10-24

    IPC分类号: H04L12/751 H04L12/721

    摘要: The disclosed embodiments provide a system for transmitting a link state message in a network. During operation, the system obtains a network topology for the network. Next, the system uses the network topology to identify a reflood set of neighbors of the flooding node for reaching a set of two-hop neighbors of the flooding node. The system then transmits a link state message with an indication to reflood the link state message to the reflood set of neighbors. Finally, the system transmits the link state message without the indication to reflood to remaining neighbors of the flooding node that form a non-reflood set.

    Automatically detecting roles of nodes in layered network topologies

    公开(公告)号:US10367686B2

    公开(公告)日:2019-07-30

    申请号:US15453438

    申请日:2017-03-08

    摘要: The disclosed embodiments provide a system that automatically detects a role of a node in a network with a layered topology. During operation, the system uses a local shortest path tree (SPT) for a node in a network with a layered topology to identify one or more additional nodes in the network that are farthest from the node. Next, the system compares the local SPT with a remote SPT for the one or more additional nodes to identify a position of the node in the layered topology. The system then outputs the position of the node for use in configuring the operation of the node in the network.

    DISCOVERING ADDRESS MOBILITY EVENTS USING DYNAMIC DOMAIN NAME SERVICES

    公开(公告)号:US20190081924A1

    公开(公告)日:2019-03-14

    申请号:US15700409

    申请日:2017-09-11

    IPC分类号: H04L29/12 H04L12/26

    摘要: The disclosed embodiments provide a system for discovering address mobility events. Upon detecting a loss of data over a connection with a service at an Internet Protocol (IP) address, the system invalidates a domain name system (DNS) cache on the computer system without waiting for the connection to fail. Next, the system obtains, in response to the invalidated DNS cache, an updated DNS record for the service. The system then uses a new IP address in the updated DNS record to establish a new connection with the service.

    REDUCING LATENCY DURING DOMAIN NAME RESOLUTION IN NETWORKS

    公开(公告)号:US20180295094A1

    公开(公告)日:2018-10-11

    申请号:US15480252

    申请日:2017-04-05

    IPC分类号: H04L29/12 H04L29/08

    摘要: The disclosed embodiments provide a system that performs domain name resolution. During operation, the system uses one or more attributes of a Domain Name System (DNS) query to identify a membership of the DNS query in a grouping of related DNS queries. Next, the system obtains a set of DNS records for resolving the related DNS queries. The system then expedites resolution of subsequent DNS queries in the grouping by transmitting the set of DNS records in a response to the DNS query.