公开(公告)号：US09397913B1

公开(公告)日：2016-07-19

申请号：US14228771

申请日：2014-03-28

Applicant: Juniper Networks, Inc.

Inventor： Surya Nimmagadda ,  Liang Zhang ,  Nitin Kumar ,  Sunanda Kommula ,  Ramesh Kandula

IPC: H04L12/26

CPC classification number: H04L43/0835

Abstract: In general, techniques are described for performing packet loss measurement in a distributed data plane. In one example, a local router includes a plurality of forwarding units that implement a distributed data plane. First and second forwarding units may switch layer two (L2) packet data units (PDUs) between the local router and a remote router using a virtual path. The first and second forwarding may unit may increment, in response to processing any PDU of the PDUs for the virtual path, respective counters stored by the first and second forwarding units. The first and second forwarding units may update, based on the respective counters, a loss-measurement packet (LMP). For instance, the first forwarding unit, upon updating the LMP, may internally forward the LMP to the second forwarding unit. The second forwarding unit, upon updating the LMP, may send the LMP to the remote router.

Abstract translation: 通常，描述了在分布式数据平面中执行分组丢失测量的技术。 在一个示例中，本地路由器包括实现分布式数据平面的多个转发单元。 第一和第二转发单元可以使用虚拟路径在本地路由器和远程路由器之间切换第二层（L2）分组数据单元（PDU）。 响应于处理虚拟路径的PDU的任何PDU，第一和第二转发单元可以递增由第一和第二转发单元存储的相应计数器。 第一和第二转发单元可以基于相应的计数器来更新丢失测量分组（LMP）。 例如，第一转发单元在更新LMP时可以将LMP内部转发到第二转发单元。 第二转发单元在更新LMP时可以将LMP发送到远程路由器。