path: root/Documentation/networking
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authorHannes Frederic Sowa <hannes@stressinduktion.org>2014-09-02 15:49:25 +0200
committerDavid S. Miller <davem@davemloft.net>2014-09-04 22:26:14 -0700
commit2f711939d2ea9dfaecebecd1324d2ec7a7a21f65 (patch)
treebd60e72acdcced3d345139cb31540b586eabd5a1 /Documentation/networking
parentb89df95d52d5fd0de5a2ca3f8b49aaaee4675151 (diff)
ipv6: add sysctl_mld_qrv to configure query robustness variable
This patch adds a new sysctl_mld_qrv knob to configure the mldv1/v2 query robustness variable. It specifies how many retransmit of unsolicited mld retransmit should happen. Admins might want to tune this on lossy links. Also reset mld state on interface down/up, so we pick up new sysctl settings during interface up event. IPv6 certification requests this knob to be available. I didn't make this knob netns specific, as it is mostly a setting in a physical environment and should be per host. Cc: Flavio Leitner <fbl@redhat.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/networking')
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 3cce8ea6b139..cfc71ac0f764 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -1152,6 +1152,11 @@ anycast_src_echo_reply - BOOLEAN
FALSE: disabled
Default: FALSE
+mld_qrv - INTEGER
+ Controls the MLD query robustness variable (see RFC3810 9.1).
+ Default: 2 (as specified by RFC3810 9.1)
+ Minimum: 1 (as specified by RFC6636 4.5)
IPv6 Fragmentation:
ip6frag_high_thresh - INTEGER

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