1 module ietf-tcp-common {
3 namespace "urn:ietf:params:xml:ns:yang:ietf-tcp-common";
7 "IETF NETCONF (Network Configuration) Working Group and the
8 IETF TCP Maintenance and Minor Extensions (TCPM) Working Group";
11 "WG Web: https://datatracker.ietf.org/wg/netconf
12 https://datatracker.ietf.org/wg/tcpm
13 WG List: NETCONF WG list <mailto:netconf@ietf.org>
14 TCPM WG list <mailto:tcpm@ietf.org>
15 Authors: Kent Watsen <mailto:kent+ietf@watsen.net>
17 <mailto:michael.scharf@hs-esslingen.de>";
20 "This module defines reusable groupings for TCP commons that
21 can be used as a basis for specific TCP common instances.
23 Copyright (c) 2023 IETF Trust and the persons identified
24 as authors of the code. All rights reserved.
26 Redistribution and use in source and binary forms, with
27 or without modification, is permitted pursuant to, and
28 subject to the license terms contained in, the Revised
29 BSD License set forth in Section 4.c of the IETF Trust's
30 Legal Provisions Relating to IETF Documents
31 (https://trustee.ietf.org/license-info).
33 This version of this YANG module is part of RFC DDDD
34 (https://www.rfc-editor.org/info/rfcDDDD); see the RFC
35 itself for full legal notices.
37 The key words 'MUST', 'MUST NOT', 'REQUIRED', 'SHALL',
38 'SHALL NOT', 'SHOULD', 'SHOULD NOT', 'RECOMMENDED',
39 'NOT RECOMMENDED', 'MAY', and 'OPTIONAL' in this document
40 are to be interpreted as described in BCP 14 (RFC 2119)
41 (RFC 8174) when, and only when, they appear in all
42 capitals, as shown here.";
48 "RFC DDDD: YANG Groupings for TCP Clients and TCP Servers";
53 feature keepalives-supported {
55 "Indicates that keepalives are supported.";
59 grouping tcp-common-grouping {
61 "A reusable grouping for configuring TCP parameters common
62 to TCP connections as well as the operating system as a
64 container keepalives {
65 if-feature "keepalives-supported";
67 "Indicates that keepalives are enabled. This statement is
68 present so the mandatory descendant nodes do not imply that
69 this node must be configured.";
71 "Configures the keep-alive policy, to proactively test the
72 aliveness of the TCP peer. An unresponsive TCP peer is
73 dropped after approximately (idle-time + max-probes
74 * probe-interval) seconds.";
77 Transmission Control Protocol (TCP), Section 3.8.4..";
85 "Sets the amount of time after which if no data has been
86 received from the TCP peer, a TCP-level probe message
87 will be sent to test the aliveness of the TCP peer.
88 Two hours (7200 seconds) is safe value, per RFC 1122.";
91 Requirements for Internet Hosts -- Communication Layers";
99 "Sets the maximum number of sequential keep-alive probes
100 that can fail to obtain a response from the TCP peer
101 before assuming the TCP peer is no longer alive.";
103 leaf probe-interval {
110 "Sets the time interval between failed probes. The interval
111 SHOULD be significantly longer than one second in order to
112 avoid harm on a congested link.";
114 } // container keepalives
115 } // grouping tcp-common-grouping