FIELD: traffic bypass prevention.
SUBSTANCE: invention relates to means for preventing traffic bypass. The other gateways of the EVPN MAC/IP notification route of the first access device in the first access ring in which the gateway is located are notified, and the second layer forwarding information and the third layer forwarding information of the first access device are carried along the route. The EVPN MAC/IP notification route of the second access device in the second access ring is received upon notification by the second gateway in the second access ring, and according to the second layer forwarding information and the third layer forwarding information of the second access device that is carried along the route, creating a detailed route of the second access device. In response to the message being forwarded to the second access device, the second layer is encapsulated and the third layer is encapsulated for the message according to the detailed route of the second access device, and the encapsulated message is forwarded to the second gateway.
EFFECT: preventing traffic bypass when accessing ring communication over Ethernet VPN and improving transmission ratio.
10 cl, 5 dwg
