Information About Packet Drops
High Level Packet Flow
Cisco ASR 1000 Series Router comprises the following functional elements in the system:
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• Cisco ASR 1000 Series Route Processor (RP)
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• Cisco ASR 1000 Series Embedded Services Processor (ESP)
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• Cisco ASR 1000 Series SPA Interface Processor (SIP) or Modular Interface Processor
The Cisco ASR 1000 Series Routers introduce the Cisco Quantum Flow Processor (QFP) as their hardware architecture. In the QFP based architecture, all packets are forwarded through ESP, so, if a problem occurs in ESP, the forwarding stops.