DETECTING AN ACCESS CUSTOMER EDGE DEVICE OF A PROVIDER EDGE DEVICE

摘要

According to an example, a Virtual Switch Instance (VSI) in a provider edge (PE) device is obtained and an encapsulation Virtual Local Area Network (VLAN) ID corresponding to the VSI is obtained. A service VLAN (SVLAN) ID in VLAN mapping information in a customer edge (CE) device adjacent to the PE device in the VSI is also obtained, and the CE device is determined to be an access CE device of the PE device in the VSI in response to a determination that the SVLAN ID is identical to the encapsulation VLAN ID.

主权项

1. A method to detect a customer edge (CE) device adjacent to a provider edge (PE) device in a Virtual Switch Instance (VSI) in a Multi-Protocol Label Switch (MPLS) Layer 2 Virtual Private Network (L2VPN), the method comprising:
obtaining the VSI in the PE device; obtaining an encapsulation Virtual Local Area Network (VLAN) ID corresponding to the VSI; obtaining a service VLAN (SVLAN) ID in VLAN mapping information in the CE device adjacent to the PE device in the VSI; and determining the adjacent CE device is an access CE device of the PE device in the VSI in response to a determination that the SVLAN ID is identical to the encapsulation VLAN ID.