公开(公告)号：US20160080254A1

公开(公告)日：2016-03-17

申请号：US14949506

申请日：2015-11-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zaifu ZHOU ,  Huan ZHANG

IPC: H04L12/721 ,  H04L12/741 ,  H04L12/751

CPC classification number: H04L45/38 ,  H04L12/6418 ,  H04L43/0811 ,  H04L43/50 ,  H04L45/10 ,  H04L45/26 ,  H04L45/745 ,  Y02D30/30

Abstract: An OFS in-band communication method and an OFS are disclosed. The method includes: receiving an LLDP data packet; creating a controller list entry or updating a controller list entry when it is determined, by using a role sub-field, that a sender type of the received LLDP data packet is OFC; acquiring a first-time TCP handshake packet used for establishing a TCP connection, and checking, according to a destination MAC and a destination IP that are carried in the TCP handshake packet, whether a corresponding controller list entry exists in a controller list; and if yes, updating a flow entry according to the MAC, the IP, and the in_port in the corresponding controller list entry in the controller list, so that an OFS can forward, by using a flow table, a packet to be sent to an OFC to the OFC.

Abstract translation: 公开了OFS带内通信方法和OFS。 该方法包括：接收LLDP数据包; 当通过使用角色子字段确定所接收的LLDP数据分组的发送方是OFC时，创建控制器列表条目或更新控制器列表条目; 获取用于建立TCP连接的第一次TCP握手分组，并且根据在TCP握手分组中携带的目的地MAC和目的地IP来检查控制器列表中是否存在对应的控制器列表条目; 如果是，则根据控制器列表中的相应控制器列表条目中的MAC，IP和in_port来更新流条目，使得OFS可以通过使用流表来转发要发送到 OFC到OFC。