Update README with specific IP address instructions

Clarified instructions for replacing NODE_1_IP_ADDRESS with specific interface details.
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Ev Lacey 2025-12-02 16:40:50 -08:00 committed by GitHub
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@ -210,7 +210,7 @@ bash run_cluster.sh $VLLM_IMAGE $HEAD_NODE_IP --worker ~/.cache/huggingface \
-e MASTER_ADDR=$HEAD_NODE_IP
```
> **Note:** Replace `<NODE_1_IP_ADDRESS>` with the actual IP address from Node 1. If using automatic link-local addressing, this will be something like `169.254.x.x`. If using manual static IPs, it will be `192.168.100.10`.
> **Note:** Replace `<NODE_1_IP_ADDRESS>` with the actual IP address from Node 1, specifically the QSFP interface enp1s0f1np1 configured in the [Connect two Sparks](https://build.nvidia.com/spark/connect-two-sparks) playbook.
## Step 6. Verify cluster status
Confirm both nodes are recognized and available in the Ray cluster.