summaryrefslogtreecommitdiff
path: root/Documentation/networking/ip-sysctl.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/networking/ip-sysctl.txt')
-rw-r--r--Documentation/networking/ip-sysctl.txt34
1 files changed, 29 insertions, 5 deletions
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index ce8fbf5aa63c..8313a636dd53 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -81,6 +81,15 @@ fib_multipath_hash_policy - INTEGER
0 - Layer 3
1 - Layer 4
+ip_forward_update_priority - INTEGER
+ Whether to update SKB priority from "TOS" field in IPv4 header after it
+ is forwarded. The new SKB priority is mapped from TOS field value
+ according to an rt_tos2priority table (see e.g. man tc-prio).
+ Default: 1 (Update priority.)
+ Possible values:
+ 0 - Do not update priority.
+ 1 - Update priority.
+
route/max_size - INTEGER
Maximum number of routes allowed in the kernel. Increase
this when using large numbers of interfaces and/or routes.
@@ -733,11 +742,11 @@ tcp_limit_output_bytes - INTEGER
Controls TCP Small Queue limit per tcp socket.
TCP bulk sender tends to increase packets in flight until it
gets losses notifications. With SNDBUF autotuning, this can
- result in a large amount of packets queued in qdisc/device
- on the local machine, hurting latency of other flows, for
- typical pfifo_fast qdiscs.
- tcp_limit_output_bytes limits the number of bytes on qdisc
- or device to reduce artificial RTT/cwnd and reduce bufferbloat.
+ result in a large amount of packets queued on the local machine
+ (e.g.: qdiscs, CPU backlog, or device) hurting latency of other
+ flows, for typical pfifo_fast qdiscs. tcp_limit_output_bytes
+ limits the number of bytes on qdisc or device to reduce artificial
+ RTT/cwnd and reduce bufferbloat.
Default: 262144
tcp_challenge_ack_limit - INTEGER
@@ -1834,6 +1843,16 @@ stable_secret - IPv6 address
By default the stable secret is unset.
+addr_gen_mode - INTEGER
+ Defines how link-local and autoconf addresses are generated.
+
+ 0: generate address based on EUI64 (default)
+ 1: do no generate a link-local address, use EUI64 for addresses generated
+ from autoconf
+ 2: generate stable privacy addresses, using the secret from
+ stable_secret (RFC7217)
+ 3: generate stable privacy addresses, using a random secret if unset
+
drop_unicast_in_l2_multicast - BOOLEAN
Drop any unicast IPv6 packets that are received in link-layer
multicast (or broadcast) frames.
@@ -1863,6 +1882,11 @@ ratelimit - INTEGER
otherwise the minimal space between responses in milliseconds.
Default: 1000
+echo_ignore_all - BOOLEAN
+ If set non-zero, then the kernel will ignore all ICMP ECHO
+ requests sent to it over the IPv6 protocol.
+ Default: 0
+
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