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networkd: reduce the IPv4 DAD timeout to 200ms

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The original timeout of 7 seconds is very long for today's networks. Reduce it
to 200ms. Note that this change also affects IPv4 link-local addressing.
This commit is contained in:
Beniamino Galvani
2025-04-26 14:44:52 +09:00
committed by Yu Watanabe
parent c2691d8e7c
commit 2451cd2512
3 changed files with 9 additions and 2 deletions
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src/libsystemd-network/sd-ipv4acd.c
+1 -1
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@@ -43,7 +43,7 @@
#define MAX_CONFLICTS 10U
/* Default timeout from the RFC */
#define DEFAULT_ACD_TIMEOUT_USEC (7 * USEC_PER_SEC)
#define DEFAULT_ACD_TIMEOUT_USEC (200 * USEC_PER_MSEC)
typedef enum IPv4ACDState {
IPV4ACD_STATE_INIT,