[Network] Use NetworkAddress for dist_init_method and loopback fallbacks (#20657)

Co-authored-by: hnyls2002 <lsyincs@gmail.com>
2026-03-16 19:59:49 -07:00
parent 71a54c1c42
commit 9f56b471aa
9 changed files with 79 additions and 44 deletions
--- a/python/sglang/srt/managers/data_parallel_controller.py
+++ b/python/sglang/srt/managers/data_parallel_controller.py
@@ -288,7 +288,8 @@ class DataParallelController:
        # Determine the endpoint for inter-node communication
        if server_args.dist_init_addr is None:
            na = NetworkAddress(
-                "127.0.0.1", server_args.port + DP_ATTENTION_HANDSHAKE_PORT_DELTA
+                server_args.host or "127.0.0.1",
+                server_args.port + DP_ATTENTION_HANDSHAKE_PORT_DELTA,
            )
        else:
            na = NetworkAddress.parse(server_args.dist_init_addr)