公开(公告)号：US20170214549A1

公开(公告)日：2017-07-27

申请号：US15403391

申请日：2017-01-11

Applicant: ALAXALA Networks Corporation

Inventor： Hiroyuki YOSHINO ,  Motohide NOUMI

IPC: H04L12/46 ,  H04L12/741

CPC classification number: H04L12/4641 ,  H04L12/4633 ,  H04L45/28 ,  H04L45/66 ,  H04L45/74

Abstract: A network device is configured to: detect a virtual network that is unable to relay communication as a failed virtual network; identify, as a failed virtual network identifier, a virtual network identifier assigned to a combination of the failed virtual network and a physical port through which communication of the failed virtual network pass, based on mapping information; identify a first virtual tunnel end point that relays communication of the failed virtual network; identify a second virtual tunnel end point of another network device that communicates with the first virtual tunnel end point based on the tunnel information; and send, to the second virtual tunnel end point, a clear request including the failed virtual network identifier and an IP address of the first virtual tunnel end point, and the clear request being used for clearing a MAC address used in Layer 2 protocol.