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Static MAC address propagation in multipoint network services
申请公布号：US9019973(B1)
申请号：US201213631521
申请日期：2012.09.28
申请公布日期：2015.04.28
发明人：Shukla Pankaj;Lin Wen
分类号：H04L12/28;H04L12/751;H04L12/721
主分类号：H04L12/28
代理人：Shumaker & Sieffert, P.A.
地址：Sunnyvale CA US
摘要：A first network device receives a control message at an interface from a second network device, wherein the first network device and the second network device use a multipoint service that provides layer two (L2) connectivity between L2 networks. The control message specifies one or more L2 addresses of customer network devices that are provided connectivity to an autonomous system by the second network device, wherein the control message identifies the L2 addresses as static L2 addresses that are to be persistently maintained at the first network device as reachable by the interface. In response to receiving the control message and by the first network device, the first network device stores the L2 addresses as persistently maintained static L2 addresses being reachable by the interface at which the control message was received.
主权项：1. A method comprising: by a first network device, sending a capability advertisement to one or more peer network devices, wherein the capability advertisement specifies a static layer two (L2) address identification capability indicating that the first network device has an ability to process routine protocol control messages conforming to a static L2 address identification message type; by the first network device, receiving a control message at an interface of the first network device, wherein the control message is received from a second network device, wherein the first network device and the second network device use a multipoint service that provides L2 connectivity to transport L2 communications for a plurality of L2 networks through an intermediate network coupling the plurality of L2 networks, wherein the control message specifies one or more L2 addresses of network devices that are positioned within the L2 networks and reachable through the second network device, wherein the control message identifies the L2 addresses as static L2 addresses that are to be persistently maintained at the first network device as reachable by the interface; and in response to receiving the control message and by the first network device, identifying the control message as conforming to the static L2 address identification message type and storing the L2 addresses as persistently maintained static L2 addresses being reachable by the interface of the first network device at which the control message was received.