What are 12 CXP ports used for on the NCS 4016 fabric card?

Question

Options

• A100 Gigabit Ethernet clients
• Bmultichassis configurations
• CDWDM wavelengths
• Dchassis management

• A
  4% (1)
• B
  92% (24)
• C
  4% (1)

Explanation

On the NCS 4016, the 12 CXP ports on the fabric card serve as inter-chassis fabric interconnects, linking multiple NCS 4016 chassis together into a single logical multichassis system - this scales both slot capacity and throughput beyond what a single chassis can provide.

Why the distractors are wrong:

• A (100GbE clients): Although CXP is a 100G transceiver form factor, these specific ports on the fabric card are dedicated to fabric interconnect traffic, not client-facing line-side interfaces.
• C (DWDM wavelengths): DWDM optical transport is handled by line cards and external transponders, not by fabric card ports.
• D (Chassis management): Management functions (alarms, console, SNMP) are handled by the Route Processor or Shelf Controller modules, not CXP ports.

Memory tip: Think "Fabric card = fabric purpose." The CXP ports on a fabric card glue fabrics together across chassis - they never touch client traffic or management traffic. If a question mentions fabric card ports, the answer almost always involves chassis-to-chassis connectivity.

No community discussion yet for this question.