What did Cisco create to address the issues raised with SGSNs without moving to Direct Tunnel?

Question

Options

• Aper-application flow policing
• Bseamless evolution path to LTE/EPC
• Cmobile Internet NPU fast path feature
• Dmobile traffic caching feature

• A
  6% (2)
• C
  91% (31)
• D
  3% (1)

Explanation

Cisco developed the mobile Internet NPU (Network Processing Unit) fast path feature specifically to offload and accelerate user-plane traffic processing on SGSNs, reducing the performance bottleneck that SGSNs created when handling high-volume mobile data - all without requiring the network to implement Direct Tunnel. Option A (per-application flow policing) is a QoS/policy enforcement mechanism unrelated to SGSN throughput problems. Option B (seamless evolution to LTE/EPC) addresses long-term network migration strategy, not immediate SGSN scaling issues. Option D (mobile traffic caching) improves content delivery efficiency but does not solve the SGSN processing bottleneck.

Memory tip: Think "NPU = speed." The NPU fast path is a hardware-accelerated shortcut inside the SGSN itself - Cisco's way of saying "we'll make the SGSN faster" rather than "we'll route around it" (which is what Direct Tunnel does).

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