公开(公告)号：US20160014142A1

公开(公告)日：2016-01-14

申请号：US14864464

申请日：2015-09-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Cheng WANG ,  Kang ZI

IPC: H04L29/06 ,  H04L12/24 ,  H04L12/841 ,  H04L12/46 ,  H04L12/721

CPC classification number: H04L63/105 ,  H04L12/4625 ,  H04L12/6418 ,  H04L41/0806 ,  H04L41/28 ,  H04L45/26 ,  H04L47/286 ,  H04L63/0876 ,  H04L63/162 ,  Y02D30/30

Abstract: The present application discloses a link discovery method and apparatus. The method includes: when a network device receives a first LLDP packet sent by a directly connected device, determining a security level of the directly connected device according to an authentication TLV; if the security level of the directly connected device is secure, determining a device type of the directly connected device, and sending a second LLDP packet to the directly connected device according to a correspondence between the device type of the directly connected device and a TLV. In the present application, a corresponding TLV is selected according to the device type and sent, which avoids that all types of TLVs are sent to a directly connected device every time, and reduces a possibility of device information leakage. It is ensured that a sent LLDP packet is more proper, and a link overhead is reduced.

Abstract translation: 本申请公开了一种链路发现方法和装置。 该方法包括：当网络设备接收到直连设备发送的第一LLDP报文时，根据认证TLV确定直连设备的安全级别; 如果直连设备的安全级别安全，则确定直连设备的设备类型，并根据直连设备的设备类型与TLV之间的对应关系向直连设备发送第二LLDP报文。 在本申请中，根据设备类型选择相应的TLV并发送，从而避免每一次将所有类型的TLV发送到直接连接的设备，并减少设备信息泄漏的可能性。 确保发送的LLDP分组更合适，并减少链路开销。