单选题If the PFE does not have a route to the destination address of a packet， which action will be taken？（）AThe PFE floods the packet out of all interfaces.BThe PFE drops the packet and sends a destination unreachable notification back to source device.CThe PFE forwards the packet to the routing engine for further processing.DThe PFE queues the packet and sends a request for a layer 3 lookup to the routing engine.
单选题
If the PFE does not have a route to the destination address of a packet， which action will be taken？（）
A
The PFE floods the packet out of all interfaces.
B
The PFE drops the packet and sends a destination unreachable notification back to source device.
C
The PFE forwards the packet to the routing engine for further processing.
D
The PFE queues the packet and sends a request for a layer 3 lookup to the routing engine.
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