Messages in this thread Patch in this message | | | From | cgel.zte@gmail ... | Subject | [PATCH v3 3/3] ipv4: add documentation of two sysctls about icmp | Date | Tue, 30 Aug 2022 09:17:18 +0000 |
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From: xu xin <xu.xin16@zte.com.cn>
Add the descriptions of the sysctls of error_cost and error_burst in Documentation/networking/ip-sysctl.rst.
Signed-off-by: xu xin (CGEL ZTE) <xu.xin16@zte.com.cn> Reviewed-by: Yunkai Zhang (CGEL ZTE) <zhang.yunkai@zte.com.cn> --- Documentation/networking/ip-sysctl.rst | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/Documentation/networking/ip-sysctl.rst b/Documentation/networking/ip-sysctl.rst index 56cd4ea059b2..c113a34a4115 100644 --- a/Documentation/networking/ip-sysctl.rst +++ b/Documentation/networking/ip-sysctl.rst @@ -156,6 +156,23 @@ route/max_size - INTEGER From linux kernel 3.6 onwards, this is deprecated for ipv4 as route cache is no longer used. +route/error_cost - INTEGER + The minimum time interval between two consecutive ICMP-DEST- + UNREACHABLE packets allowed sent to the same peer in the stable + period. Basically, The higher its value is, the lower the general + frequency of sending ICMP DEST-UNREACHABLE packets. + + Default: HZ (one second) + +route/error_burst - INTEGER + Together with error_cost, it controls the max number of burstly + sent ICMP DEST-UNREACHABLE packets after a long calm time (no + sending ICMP DEST-UNREACHABLE). Basically, the higher the rate + of error_burst over error_cost is, the more allowed burstly sent + ICMP DEST-UNREACHABLE packets after a long calm time. + + Default: 5 * HZ + neigh/default/gc_thresh1 - INTEGER Minimum number of entries to keep. Garbage collector will not purge entries if there are fewer than this number. -- 2.25.1
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