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path: root/Documentation/networking/ipvs-sysctl.txt (follow)
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2017-03-16ipvs: Document sysctl pmtu_discHangbin Liu1-0/+8
Document sysctl pmtu_disc based on commit 3654e61137db ("ipvs: add pmtu_disc option to disable IP DF for TUN packets"). Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2017-03-16ipvs: Document sysctl sync_portsHangbin Liu1-0/+8
Document sysctl sync_ports based on commit f73181c8288f ("ipvs: add support for sync threads"). Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2017-03-16ipvs: Document sysctl sync_qlen_max and sync_sock_sizeHangbin Liu1-0/+14
Document sysctl sync_qlen_max and sync_sock_size based on commit 1c003b1580e2 ("ipvs: wakeup master thread"). Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2017-03-16ipvs: fix sync_threshold description and add sync_refresh_period, sync_retriesHangbin Liu1-9/+31
Fix sync_threshold description which should have two values. Also add sync_refresh_period and sync_retries based on commit 749c42b620a9 ("ipvs: reduce sync rate with time thresholds"). Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2015-09-17ipvs: add sysctl to ignore tunneled packetsAlex Gartrell1-0/+10
This is a way to avoid nasty routing loops when multiple ipvs instances can forward to eachother. Signed-off-by: Alex Gartrell <agartrell@fb.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2015-02-25ipvs: allow rescheduling of new connections when port reuse is detectedMarcelo Ricardo Leitner1-0/+21
Currently, when TCP/SCTP port reusing happens, IPVS will find the old entry and use it for the new one, behaving like a forced persistence. But if you consider a cluster with a heavy load of small connections, such reuse will happen often and may lead to a not optimal load balancing and might prevent a new node from getting a fair load. This patch introduces a new sysctl, conn_reuse_mode, that allows controlling how to proceed when port reuse is detected. The default value will allow rescheduling of new connections only if the old entry was in TIME_WAIT state for TCP or CLOSED for SCTP. Signed-off-by: Marcelo Ricardo Leitner <mleitner@redhat.com> Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2013-06-26ipvs: add sync_persist_mode flagJulian Anastasov1-0/+13
Add sync_persist_mode flag to reduce sync traffic by syncing only persistent templates. Signed-off-by: Julian Anastasov <ja@ssi.bg> Tested-by: Aleksey Chudov <aleksey.chudov@gmail.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2013-03-19ipvs: add backup_only flag to avoid loopsJulian Anastasov1-0/+7
Dmitry Akindinov is reporting for a problem where SYNs are looping between the master and backup server when the backup server is used as real server in DR mode and has IPVS rules to function as director. Even when the backup function is enabled we continue to forward traffic and schedule new connections when the current master is using the backup server as real server. While this is not a problem for NAT, for DR and TUN method the backup server can not determine if a request comes from client or from director. To avoid such loops add new sysctl flag backup_only. It can be needed for DR/TUN setups that do not need backup and director function at the same time. When the backup function is enabled we stop any forwarding and pass the traffic to the local stack (real server mode). The flag disables the director function when the backup function is enabled. For setups that enable backup function for some virtual services and director function for other virtual services there should be another more complex solution to support DR/TUN mode, may be to assign per-virtual service syncid value, so that we can differentiate the requests. Reported-by: Dmitry Akindinov <dimak@stalker.com> Tested-by: German Myzovsky <lawyer@sipnet.ru> Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2011-11-01ipvs: Enhance grammar used to refer to Kconfig optionsSimon Horman1-2/+2
Reported-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2011-11-01ipvs: secure_tcp does provide alternate state timeoutsSimon Horman1-6/+4
Also reword the test to make it read more easily (to me) Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2011-11-01ipvs: Add documentation for new sysctl entriesSimon Horman1-1/+51
Add missing documentation for conntrack, snat_reroute and sync_version. Also fix up a typo, IPVS_DEBUG should be IP_VS_DEBUG. Acked-by: Julian Anastasov <ja@ssi.bg> Acked-by Hans Schillstrom <hans@schillstrom.com> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2006-07-03[IPVS]: Add sysctl documentationHorms1-0/+143
* Derived from http://www.linuxvirtualserver.org/docs/sysctl.html, v1.4 maintained by Wensong Zhang * Adjusted preample to match ip-sysctl.txt * Sorted options into alphabetical order * Added expire_quiescent_template * Removed timeout_* which are no longer present * Incoporated doc/debug-levels.txt from IPVS source tree into description of ipvs_debug * Minor spelling fixes * Further editing more than welcome Signed-Off-By: Horms <horms@verge.net.au> Signed-off-by: David S. Miller <davem@davemloft.net>
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