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-rw-r--r--Documentation/networking/ip-sysctl.txt37
1 files changed, 35 insertions, 2 deletions
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 77f4de59dc9c..46c7e1085efc 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -289,8 +289,7 @@ tcp_ecn_fallback - BOOLEAN
Default: 1 (fallback enabled)
tcp_fack - BOOLEAN
- Enable FACK congestion avoidance and fast retransmission.
- The value is not used, if tcp_sack is not enabled.
+ This is a legacy option, it has no effect anymore.
tcp_fin_timeout - INTEGER
The length of time an orphaned (no longer referenced by any
@@ -454,6 +453,7 @@ tcp_recovery - INTEGER
RACK: 0x1 enables the RACK loss detection for fast detection of lost
retransmissions and tail drops.
+ RACK: 0x2 makes RACK's reordering window static (min_rtt/4).
Default: 0x1
@@ -1385,6 +1385,30 @@ mld_qrv - INTEGER
Default: 2 (as specified by RFC3810 9.1)
Minimum: 1 (as specified by RFC6636 4.5)
+max_dst_opts_cnt - INTEGER
+ Maximum number of non-padding TLVs allowed in a Destination
+ options extension header. If this value is less than zero
+ then unknown options are disallowed and the number of known
+ TLVs allowed is the absolute value of this number.
+ Default: 8
+
+max_hbh_opts_cnt - INTEGER
+ Maximum number of non-padding TLVs allowed in a Hop-by-Hop
+ options extension header. If this value is less than zero
+ then unknown options are disallowed and the number of known
+ TLVs allowed is the absolute value of this number.
+ Default: 8
+
+max dst_opts_len - INTEGER
+ Maximum length allowed for a Destination options extension
+ header.
+ Default: INT_MAX (unlimited)
+
+max hbh_opts_len - INTEGER
+ Maximum length allowed for a Hop-by-Hop options extension
+ header.
+ Default: INT_MAX (unlimited)
+
IPv6 Fragmentation:
ip6frag_high_thresh - INTEGER
@@ -1707,6 +1731,15 @@ ndisc_notify - BOOLEAN
1 - Generate unsolicited neighbour advertisements when device is brought
up or hardware address changes.
+ndisc_tclass - INTEGER
+ The IPv6 Traffic Class to use by default when sending IPv6 Neighbor
+ Discovery (Router Solicitation, Router Advertisement, Neighbor
+ Solicitation, Neighbor Advertisement, Redirect) messages.
+ These 8 bits can be interpreted as 6 high order bits holding the DSCP
+ value and 2 low order bits representing ECN (which you probably want
+ to leave cleared).
+ 0 - (default)
+
mldv1_unsolicited_report_interval - INTEGER
The interval in milliseconds in which the next unsolicited
MLDv1 report retransmit will take place.