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Cable Specifications for Copper-Based Control Plane Connections for the QFabric System

QFX Series devices support using RJ-45 patch cables to interconnect the copper-based QFabric system control plane. The RJ-45 patch cables connect to 1000BASE-T ports on the network modules in the QFX3100 Director device and the management ports in the QFX3500 Node device, QFX3600 Node device, and QFX3600-I Interconnect device.

QFX5100 Node devices and the QFX5100-24Q Interconnect devices connect using a 1000BASE-T port C1 and a 1000BASE-T SFP module (Juniper model number QFX-SFP-1GE-T) installed in the the SFP management Ethernet cage C0. Some QFX5100 SKUs have an additional SFP management port (second C0).

In the QFX3008-I Interconnect device Control Board, the RJ-45 patch cables are used with 1000BASE-T SFP modules (Juniper model number QFX-SFP-1GE-T) installed in the SFP+ ports.

Note:

For information about the QFX-SFP-1GE-T SFP module, see the Hardware Compatibility Tool.

Table 1 lists the specifications for the cables that connect the QFabric system control plane.

Table 1: Cable Specifications for Copper-Based Control Plane Connections for the QFabric System

Port on QFX Series Device

Cable Specification

Maximum Length

Device Receptacle

  • QFX3100 Director device network module ports

  • QFX3008-I Interconnect device Control Board management ports (with 1000BASE-T SFP module)

  • QFX3600-I Interconnect device management (CO and C1) ports

  • QFX5100 Interconnect device management C0 and C1 (with 1000BASE-T SFP module)

  • QFX3600 Node device management (C0 and C1) ports

  • QFX3500 Node device management (C0 and C1) ports

  • QFX5100 Node device management C0 and C1 (with 1000BASE-T SFP module)

Category 5 cable or equivalent suitable for 1000BASE-T operation with RJ-45 connectors

328 feet (100 meters)

RJ-45

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