How is the packet forwarded after AR enables MP bundling?
1. It is forwarded by packet and does not classify traffic when MP bundling is enabled.
2. MP is the conception of link layer. Handling: MP interface is polling sending after it reaches link layer.
3. Fast-forwarding is the conception of IP layer. After it reaches link layer, it is forwarded by packet.
4. If there is no command, it can be forwarded by traffic.