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-rw-r--r--Documentation/networking/ip-sysctl.txt6
1 files changed, 4 insertions, 2 deletions
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 85752c81c5ec..05915be86235 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -1216,7 +1216,8 @@ tag - INTEGER
xfrm4_gc_thresh - INTEGER
The threshold at which we will start garbage collecting for IPv4
destination cache entries. At twice this value the system will
- refuse new allocations.
+ refuse new allocations. The value must be set below the flowcache
+ limit (4096 * number of online cpus) to take effect.
igmp_link_local_mcast_reports - BOOLEAN
Enable IGMP reports for link local multicast groups in the
@@ -1662,7 +1663,8 @@ ratelimit - INTEGER
xfrm6_gc_thresh - INTEGER
The threshold at which we will start garbage collecting for IPv6
destination cache entries. At twice this value the system will
- refuse new allocations.
+ refuse new allocations. The value must be set below the flowcache
+ limit (4096 * number of online cpus) to take effect.
IPv6 Update by: