module system-configuration {
yang-version 1.1;
namespace "http://metaswitch.com/yang/tas-vm-build/system-configuration";
prefix "system";
organization "Metaswitch Networks";
contact "rvt-schemas@metaswitch.com";
description "OS-level parameters configuration schema.";
revision 2019-11-29 {
description
"Initial revision";
reference
"Metaswitch Deployment Definition Guide";
}
grouping system-configuration-grouping {
container networking {
container core {
leaf receive-buffer-size-default {
type uint32 {
range "65536 .. 16777216";
}
units "bytes";
default 512000;
description "Default socket receive buffer size.";
}
leaf receive-buffer-size-max {
type uint32 {
range "65536 .. 16777216";
}
units "bytes";
default 2048000;
description "Maximum socket receive buffer size.";
}
leaf send-buffer-size-default {
type uint32 {
range "65536 .. 16777216";
}
units "bytes";
default 512000;
description "Default socket send buffer size.";
}
leaf send-buffer-size-max {
type uint32 {
range "65536 .. 16777216";
}
units "bytes";
default 2048000;
description "Maximum socket send buffer size.";
}
description "Core network settings.";
}
container sctp {
leaf rto-min {
type uint32 {
range "10 .. 5000";
}
units "milliseconds";
default 50;
description "Round trip estimate minimum. "
+ "Used in SCTP's exponential backoff algorithm for retransmissions.";
}
leaf rto-initial {
type uint32 {
range "10 .. 5000";
}
units "milliseconds";
default 300;
description "Round trip estimate initial value. "
+ "Used in SCTP's exponential backoff algorithm for retransmissions.";
}
leaf rto-max {
type uint32 {
range "10 .. 5000";
}
units "milliseconds";
default 1000;
description "Round trip estimate maximum. "
+ "Used in SCTP's exponential backoff algorithm for retransmissions.";
}
leaf sack-timeout {
type uint32 {
range "50 .. 5000";
}
units "milliseconds";
default 100;
description "Timeout within which the endpoint expects to receive "
+ "a SACK message.";
}
leaf hb-interval {
type uint32 {
range "50 .. 30000";
}
units "milliseconds";
default 1000;
description "Heartbeat interval. The longer the interval, "
+ "the longer it can take to detect that communication with a peer "
+ "has been lost.";
}
leaf path-max-retransmissions {
type uint32 {
range "1 .. 20";
}
default 5;
description "Maximum number of retransmissions on one path before "
+ "communication via that path is considered to be lost.";
}
leaf association-max-retransmissions {
type uint32 {
range "1 .. 20";
}
default 10;
description "Maximum number of retransmissions to one peer before "
+ "communication with that peer is considered to be lost.";
}
description "SCTP-related settings.";
}
description "Network-related settings.";
}
description "OS-level parameters. It is advised to leave all settings at their defaults.";
}
}
