BACKUP SERVICE FUNCTION NOTIFICATION AND SYNCHRONIZATION

    公开(公告)号:EP3996350A1

    公开(公告)日:2022-05-11

    申请号:EP21206783.9

    申请日:2021-11-05

    摘要: Techniques are described for backup service function notification and synchronization. For example, a network system comprises: a plurality of service functions; a computing device comprising a service function classifier configured to: classify a packet to a service function chain including the plurality of service functions; determine backup service function(s) for an active service function of the service function chain; encapsulate the packet with a network service header, wherein the network service header includes backup service function information identifying one or more computing devices that host the backup service function(s); and send the packet encapsulated with the network service header to a computing device that hosts the active service function to enable the computing device that hosts the active service function to send, based at least on the backup service function information, state information for the active service function with the one or more backup service functions.