Layer 2 transparent transmission mechanism for 802.1x protocol packets on S series switches

For S series switches (except the S1700), the Layer 2 transparent transmission mechanism for 802.1 protocol packets is as follows:
1. When an 802.1x protocol packet reaches the ingress node, the switch changes the multicast destination MAC address of the packet to a specified multicast MAC address.
2. After the MAC address of an 802.1x protocol packet is changed, the switch does not send the packet to the CPU for processing but directly forwards the packet on the Layer 2 network based on the configuration.
3. When the 802.1x protocol packet reaches the egress node, the switch restores the multicast destination MAC address of the packet to the standard multicast destination MAC address based on the mapping between the specified multicast destination MAC address and the 802.1x protocol configured on the switch.

Other related questions:
S series switches' support for Layer 2 transparent transmission of 802.1x authentication packets
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