wiki:Hardware/bDomains/cSandboxes/bSB2

Version 14 (modified by jkol, 7 years ago) ( diff )

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SB2

Table of Contents

  1. Hardware
    1. Domains
      1. Sandboxes
        1. SB1
          1. RF Connections
        1. SB2
          1. RF Connections
          2. Using images based on baselines before June 12, 2017
        1. SB3
        1. SB4
          1. Node to Node RF Path
          2. Node to WiMAX basestation RF Path
        1. SB5
        1. SB6
          1. CR-Kit
          2. Parallela Platform
          3. WARP
        1. SB7
        1. SB8
        1. SB9
          1. Data Switch Connections
          2. Procedures (Edge Core Wedge)

RF Connections

The X310's connected to the nodes in this sandbox are interconnected via coax cables as follows with a 30dB attenuator on the TX/RX side of each link for protection. This setup is designed to facilitate FDD dependent experiments.

No image "SB2 X310 Connections.png" attached to Hardware/bDomains/cSandboxes/bSB2


Using images based on baselines before June 12, 2017

Images built using baselines prior to June 9, 2017 may not work correctly. After imaging, the node may not be accessible via SSH due to the add-on NIC (for X310 connectivity) changing the order of the ethernet interfaces. To repair your image, connect to the node via the CM serial console and run the following commands. 

if ! grep -i "blacklist mlx4_core" /etc/modprobe.d/blacklist.conf; then echo "blacklist mlx4_core" >> /etc/modprobe.d/blacklist.conf; fi

if ! grep -i "mlx4_core" /etc/modules; then echo "mlx4_core" >> /etc/modules; fi

depmod -a

update-initramfs -u

reboot

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