Proactive and on-demand destination next hop information sharing mechanism between a forwarding plane and a service plane
Abstract:
A first packet forwarding plane (PFE) of a network device may receive a packet and may perform a first lookup for the packet. The first PFE may provide the packet to a service plane based on the first lookup. The service plane may apply a service to the packet and may provide the packet to the first PFE. The first PFE may perform a second lookup. The first PFE may provide the packet to a second PFE of the network device based on the second lookup and may store flow information associated with the packet and second PFE information in a table. The network device may provide the flow information and the second PFE information from the table to the service plane to cause the service plane to send subsequent packets directly to the second PFE thereby saving fabric, memory, and processing bandwidth and improving overall network performance.
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