Method and device for forwarding virtual private network message
A technology of virtual private network and forwarding method, applied in the directions of network interconnection, data exchange network, data exchange through path configuration, etc. The effect of saving maintenance and management costs, reducing the number of units, and improving flexibility
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[0040] This embodiment uses port aggregation (TRUNK), configures the ports under the TRUNK as a self-loop, realizes forwarding from uplink Layer 2 VPN termination to Layer 3 VPN, and downlink Layer 3 VPN termination to Layer 2 VPN forwarding. Balanced, it well supports common networking applications of Layer 2 VPN and Layer 3 VPN.
[0041] In this embodiment, the uplink message (L2VPN to L3VPN) enters the switch chip for the first time to realize Layer 2 VPN termination and is sent to the trunk, and the port configured as the inner ring under the trunk sends the message after layer 2 termination to the switch chip again Layer 3 VPN forwarding; downlink packets (L3VPN to L2VPN) enter the switch chip for the first time to achieve Layer 3 VPN termination, and send them to the TRUNK. Layer 2 VPN forwarding to the switch chip. Uplink and downlink packets can use the same trunk, and the ports under the trunk are all set to self-loop.
[0042] Port aggregation refers to adding one ...
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