playbook rev4

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Csaba Kecskemeti 2026-01-23 19:09:38 -08:00
parent c2829a5421
commit 557fba70c8

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@ -349,9 +349,7 @@ This shows how GPUs and NICs are interconnected via PCIe.
## Step 9. Connect the QSFP Cable ## Step 9. Connect the QSFP Cable
**Hot-plug vs Cold-plug:** **Cable type:** QSFP56 or QSFP28 cable (they are cross-compatible at 100 Gbps)
- Hot-plugging QSFP cables is safe with ConnectX-5/7 hardware
- Cold-plug recommended for first-time setup
**Connection procedure:** **Connection procedure:**
1. Identify ports: DGX Spark has 2 physical QSFP ports with 4 logical interfaces 1. Identify ports: DGX Spark has 2 physical QSFP ports with 4 logical interfaces