A YANG Data Model for DHCP Configuration
draft-liu-dhc-dhcp-yang-model-01
The information below is for an old version of the document.
| Document | Type |
This is an older version of an Internet-Draft whose latest revision state is "Expired".
|
|
|---|---|---|---|
| Authors | Bing Liu , Kunkun Lou | ||
| Last updated | 2015-07-23 | ||
| RFC stream | (None) | ||
| Formats | |||
| Stream | Stream state | (No stream defined) | |
| Consensus boilerplate | Unknown | ||
| RFC Editor Note | (None) | ||
| IESG | IESG state | I-D Exists | |
| Telechat date | (None) | ||
| Responsible AD | (None) | ||
| Send notices to | (None) |
draft-liu-dhc-dhcp-yang-model-01
Internet Engineering Task Force B. Liu, Ed.
Internet-Draft K. Lou
Intended status: Standards Track Huawei Technologies
Expires: January 24, 2016 July 23, 2015
A YANG Data Model for DHCP Configuration
draft-liu-dhc-dhcp-yang-model-01
Abstract
This document defines a YANG data model for configuring DHCP Server,
relay, and client.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on January 24, 2016.
Copyright Notice
Copyright (c) 2014 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Liu, Ed. & Lou Expires January 24, 2016 [Page 1]
Internet-Draft draft-liu-dhc-dhcp-yang-model-01 July 2015
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Requirements Language and Terminology . . . . . . . . . . . . 2
3. DHCP YANG Model Overview . . . . . . . . . . . . . . . . . . 2
3.1. DHCP Relay . . . . . . . . . . . . . . . . . . . . . . . 5
3.2. DHCP Server . . . . . . . . . . . . . . . . . . . . . . . 5
3.3. DHCP Client . . . . . . . . . . . . . . . . . . . . . . . 6
4. DHCP YANG Module . . . . . . . . . . . . . . . . . . . . . . 6
5. Security Considerations . . . . . . . . . . . . . . . . . . . 19
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 19
7. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 20
8. Normative References . . . . . . . . . . . . . . . . . . . . 20
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 20
1. Introduction
This document defines a YANG [RFC6020] [RFC6021] data model for
configuring DHCP Server, relay, and client.
This model is constructed based on IPv4 version of DHCP[RFC2131].
This model contains three roles of a DHCP system: DHCP server, DHCP
relay and DHCP client. A device could be one of the roles, or a
combination of two or three roles. When a device is configured
multiple roles, the roles are indenpendent with each other. In other
words, this model is only a container for the roles, there is no
intrinsic relationship between the roles.
2. Requirements Language and Terminology
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
"OPTIONAL" in this document are to be interpreted as described in
[RFC2119] when they appear in ALL CAPS. When these words are not in
ALL CAPS (such as "should" or "Should"), they have their usual
English meanings, and are not to be interpreted as [RFC2119] key
words.
Terminology:
o DHCP: Dynamic Host Configuration Protocol [RFC2131]
3. DHCP YANG Model Overview
The overall structure of the model is dicpicted as the following.
module: ietf-dhcp
+--dhcp
Liu, Ed. & Lou Expires January 24, 2016 [Page 2]
Internet-Draft draft-liu-dhc-dhcp-yang-model-00 July 2015
+--relay
| +--rw dhcpRelayIfCfgs
| | +--rw dhcpRelayIfCfg* [ifName]
| | +--rw ifName string
| | +--rw enable boolean
| | +--rw serverGroupName string
| | +--rw serverAddress inet:ipv4-address
| +--rw dhcpRelayServerGroups
| | +--rw dhcpRelayServerGroup* [serverGroupName]
| | +--rw serverGroupName string
| | +--rw vpnName if:interface-ref
| | +--rw sourceIP inet:ip-address
| | +--rw gateway inet:ip-address
| | +--rw serverAddress enum
| | +--r dhcpRelaySerGrpStats
| | +--r dhcpRelaySerGrpStat* [serverIpAddr]
| | +--r serverIpAddr inet:ipv4-address
| | +--r pktsReceiveFromClient uint32
| | +--r discoverPktsReceive uint32
| | +--r requestPktsReceive uint32
| | +--r releasePktsReceive uint32
| | +--r informPktsRecevie uint32
| | +--r declinePktsReceive uint32
| | +--r pktsReceiveFromServers uint32
| | +--r offerPktsReceive uint32
| | +--r ackPktsReceive uint32
| | +--r nakPktsReceive uint32
| | +--r pktsSentToServers uint32
| | +--r pktsSentToClients uint32
| | +--r unicastPktsSentToClients uint32
| | +--r broadcastPktsSentToClients uint32
| +--r dhcpRelayStatistics
| +--r badPacketsRecvd uint32
| +--r packetsRecvdFromClient uint32
| +--r discoverPacketsRecvd uint32
| +--r requestPacketsRecvd uint32
| +--r informPacketsRecvd uint32
| +--r declinePacketsRecvd uint32
| +--r releasePacketsRecvd uint32
| +--r packetsRecvdFromServers uint32
| +--r offerPacketsRecvd uint32
| +--r ackPacketsRecvd uint32
| +--r nakPacketsRecvd uint32
| +--r packetsSentToServers uint32
| +--r packetsSentToClients uint32
| +--r unicastPacketsSentToClients uint32
| +--r broadcastPacketsSentToClients uint32
| +--r releasePacketsSentToServers uint32
Liu, Ed. & Lou Expires January 24, 2016 [Page 3]
Internet-Draft draft-liu-dhc-dhcp-yang-model-01 July 2015
| +--r sendRenewPacket uint32
|
+--server
| +--rw common
| | +--rw pingPacketNumber uint8
| | +--rw pingPacketTimeOut uint16
| +--rw globalIpPools
| | +--rw globalIpPool* [ipPoolName]
| | | +--rw ipPoolName string
| | | +--rw vpnInstance string
| | | +--rw gatewayIp
| | | +--rw gatewayIp inet:ipv4-address
| | | +--rw gatewayMask inet:ipv4-address
| | +--rw sections
| | | +--rw section* [sectionIndex]
| | | +--rw sectionIndex uint16
| | | +--rw sectionStartIp inet:ipv4-address
| | | +--rw sectionEndIp inet:ipv4-address
| | | +--r ipPoolSectionStat
| | | +--r usedIpCount uint32
| | | +--r idleIpCount uint32
| | | +--r conflictIpCount uint32
| | | +--r totalIpCount uint32
| | +--rw leaseTime
| | | +--rw day uint16
| | | +--rw hour uint8
| | | +--rw minute uint8
| | +--rw domainNameServer inet:ipv4-address
| | +--rw domainName string
| | +--rw NbnsServer inet:ipv4-address
| | +--rw NbNodeType enum
| | +--rw UserDefOptions
| | | +--rw UserDefOptions* [optionCode]
| | | +--rw optionCode uint8
| | | +--rw ipAddress inet:ipv4-address
| | | +--rw optionString string
| | | +--rw optionHex string
| | +--r ipPoolStat
| | +--r usedIpCount uint32
| | +--r idleIpCount uint32
| | +--r conflictIpCount uint32
| | +--r totalIpCount uint32
| +--r packetStatistics
| +--r clientRequestCount uint32
| +--r discoverCount uint32
| +--r requestCount uint32
| +--r declineCount uint32
| +--r releaseCount uint32
Liu, Ed. & Lou Expires January 24, 2016 [Page 4]
Internet-Draft draft-liu-dhc-dhcp-yang-model-01 July 2015
| +--r informCount uint32
| +--r serverReplyCount uint32
| +--r offerCount uint32
| +--r ackCount uint32
| +--r nakCount uint32
|
+--client
+--rw dhcpClientIfs
+--rw dhcpClientIf* [ifName]
+--rw ifName string
+--rw enable boolean
+--r dhcpClientStatus
| +--r status enum
| +--r clientIpAddr inet:ipv4-address
| +--r dnsServerIpAddr inet:ipv4-address
+--r dhcpClientIfStatistics
+--r discoverCount uint32
+--r requestCount uint32
+--r declineCount uint32
+--r releaseCount uint32
+--r informCount uint32
+--r offerCount uint32
+--r ackCount uint32
+--r nakCount uint32
3.1. DHCP Relay
The relay function is configured in a per interface manner. Thus,
there is a "dhcpRelayIfCfgs" container to list each interface's
general relay configurations, which mainly include enable/disable of
relay, servier address, and server group (see below).
In some scenarios, there are multiple DHCP servers for high reliable,
load balancing or other considerations. The servers could combined
as multiple groups, and each group is binding to a specific relay
configuration (as decribed in above "dhcpRelayIfCfgs"). The groups
are listed in the "dhcpRelayServerGroups" container. The
"dhcpRelaySerGrpStats" container records statistic information by
each DHCP server IP address in the group.
The "dhcpRelayStatistics" list records the statistic information of
the whole relay entity.
3.2. DHCP Server
Server configurations contain common configurations, IP adderss pool
configuration and statistic information.
Liu, Ed. & Lou Expires January 24, 2016 [Page 5]
Internet-Draft draft-liu-dhc-dhcp-yang-model-01 July 2015
Each time the DHCP server intends to allocate an IP adderss, it needs
to confirm whether the address has been ocuppied or not through
pinging. The "common" container includes two parameters to control
the packet number and timeout period respectively.
The most important part of server configurations is the IP pool
configuration. Normally, the DNS configuration and some other option
configuration are relevant to the IP pool where the allocated IP
address comes from, so the option configuration is sorted under the
IP pool container. This model supports user defined options
configuration through the "UserDefOptions" container.
3.3. DHCP Client
DHCP client is also managed in a per interface manner. Except for
enable/disable of client function, other objects are all status
information.
4. DHCP YANG Module
<CODE BEGINS>
module huawei-dhcp {
namespace "urn:ietf:params:xml:ns:yang:ietf-dhcp";
prefix "dhcp";
import ietf-inet-types {
prefix "inet";
}
contact "leo.liubing@huawei.com" "loukunkun@huawei.com";
description "The module for implementing DHCP protocol";
revision "2014-12-18";
container relay {
container dhcpRelayIfCfgs {
list dhcpRelayIfCfg {
key "ifName";
leaf ifName {
description "Specify the interface name that dhcp relay configured on";
type "string";
config "true";
}
Liu, Ed. & Lou Expires January 24, 2016 [Page 6]
Internet-Draft draft-liu-dhc-dhcp-yang-model-01 July 2015
leaf enable {
description "Enable or disable dhcp relay function";
type "boolean";
default "false";
config "true";
}
leaf serverGroupName {
description "Server Group Name";
type string;
config "true";
}
leaf-list serverAddress {
description "DHCP relay destination server IP address";
type inet:ipv4-address;
config "true";
}
}
}
container dhcpRelayServerGroups {
list dhcpRelayServerGroup {
key "serverGroupName";
description "DHCP relay server group ";
leaf serverGroupName {
description "name of server group";
type string;
config "true";
}
leaf vpnName {
description "VPN name for server group";
type string;
config "true";
}
leaf gateway {
description "gateway for server group";
type inet:ipv4-address;
config "true";
}
Liu, Ed. & Lou Expires January 24, 2016 [Page 7]
Internet-Draft draft-liu-dhc-dhcp-yang-model-01 July 2015
leaf-list serverAddress {
description "DHCP relay destination server IP address";
type inet:ipv4-address;
config "true";
}
container dhcpRelaySerGrpStats {
list dhcpRelaySerGrpStats {
description "DHCP relay server group packet statistics ";
key "serverIpAddr";
leaf serverIpAddr {
type inet:ipv4-address;
}
leaf pktsReceiveFromClient {
type "uint32";
config "false";
}
leaf discoverPktsReceive {
type "uint32";
config "false";
}
leaf requestPktsReceive {
type "uint32";
config "false";
}
leaf releasePktsReceive {
type "uint32";
config "false";
}
leaf informPktsRecevie {
type "uint32";
config "false";
}
leaf declinePktsReceive {
type "uint32";
config "false";
}
leaf pktsReceiveFromServers {
type "uint32";
config "false";
}
leaf offerPktsReceive {
type "uint32";
config "false";
}
leaf ackPktsReceive {
Liu, Ed. & Lou Expires January 24, 2016 [Page 8]
Internet-Draft draft-liu-dhc-dhcp-yang-model-01 July 2015
type "uint32";
config "false";
}
leaf nakPktsReceive {
type "uint32";
config "false";
}
leaf pktsSentToServers {
type "uint32";
config "false";
}
leaf pktsSentToClients {
type "uint32";
config "false";
}
leaf unicastPktsSentToClients {
type "uint32";
config "false";
}
leaf broadcastPktsSentToClients {
type "uint32";
config "false";
}
}
}
}
}
container dhcpRelayStatistics {
leaf badPacketsRecvd {
type "uint32";
config "false";
}
leaf packetsRecvdFromClient {
type "uint32";
config "false";
}
leaf discoverPacketsRecvd {
type "uint32";
config "false";
}
leaf requestPacketsRecvd {
type "uint32";
config "false";
Liu, Ed. & Lou Expires January 24, 2016 [Page 9]
Internet-Draft draft-liu-dhc-dhcp-yang-model-01 July 2015
}
leaf informPacketsRecvd {
type "uint32";
config "false";
}
leaf declinePacketsRecvd {
type "uint32";
config "false";
}
leaf releasePacketsRecvd {
type "uint32";
config "false";
}
leaf packetsRecvdFromServers {
type "uint32";
config "false";
}
leaf offerPacketsRecvd {
type "uint32";
config "false";
}
leaf ackPacketsRecvd {
type "uint32";
config "false";
}
leaf nakPacketsRecvd {
type "uint32";
config "false";
}
leaf packetsSentToServers {
type "uint32";
config "false";
}
leaf packetsSentToClients {
type "uint32";
config "false";
}
leaf unicastPacketsSentToClients {
type "uint32";
config "false";
}
leaf broadcastPacketsSentToClients {
type "uint32";
config "false";
}
leaf releasePacketsSentToServers {
type "uint32";
config "false";
Liu, Ed. & Lou Expires January 24, 2016 [Page 10]
Internet-Draft draft-liu-dhc-dhcp-yang-model-01 July 2015
}
leaf sendRenewPacket {
type "uint32";
config "false";
}
}
}
container server {
container common {
leaf pingPacketNumber{
description "Ping packet number";
type uint8 {
range "0..10";
}
config "true";
default "0";
}
leaf pingPacketTimeOut {
description "Ping packet timeout";
type uint16 {
range "0..10000";
}
config "true";
default "500";
}
}
container globalIpPool {
list globalIpPool {
key "ipPoolName";
leaf ipPoolName {
description "IP pool name";
type string {
length "1..64";
}
config "true";
}
leaf vpnInstance {
description "VPN name";
type string {
length "1..31";
Liu, Ed. & Lou Expires January 24, 2016 [Page 11]
Internet-Draft draft-liu-dhc-dhcp-yang-model-01 July 2015
}
config "true";
}
container gatewayIp {
leaf gatewayIp {
description "Gateway IP Address";
type inet:ipv4-address;
config "true";
}
leaf gatewayMask {
description "Gateway IP Address Mask";
type inet:ipv4-address;
config "true";
}
}
container sections {
list section {
key "sectionIndex";
leaf sectionIndex {
description "Section Index";
type uint16 {
range "0..255";
}
config "true";
}
leaf sectionStartIp {
description "IP Address";
type inet:ipv4-address;
config "true";
mandatory "true";
}
leaf sectionEndIp {
description "IP Address";
config "true";
type inet:ipv4-address;
mandatory "false";
}
container ipPoolSectionStat {
leaf usedIpCount {
description "Used Ip Count";
Liu, Ed. & Lou Expires January 24, 2016 [Page 12]
Internet-Draft draft-liu-dhc-dhcp-yang-model-01 July 2015
type uint32;
config "false";
}
leaf idleIpCount {
description "Idle Ip Count";
type uint32;
config "false";
}
leaf conflictIpCount {
description "Conflict Ip Count";
type uint32;
config "false";
}
leaf totalIpCount {
description "Total Ip Count";
type uint32;
config "false";
}
}
}
}
container leaseTime {
description "Specifies the lease time, option code is 51.";
leaf day {
description "Day";
type uint16 {
range "0..49710";
}
config "true";
default "1";
}
leaf hour {
description "Hour";
type uint8 {
range "0..23";
}
config "true";
default "0";
}
leaf minute {
description "Minute";
type uint8 {
range "0..59";
}
config "true";
Liu, Ed. & Lou Expires January 24, 2016 [Page 13]
Internet-Draft draft-liu-dhc-dhcp-yang-model-01 July 2015
default "0";
}
}
leaf-list domainNameServer {
description "Specifies the domain name server, option code is 5.";
type inet:ipv4-address;
config "true";
}
leaf domainName {
description "Specifies the domain name, option code is 15.";
type string {
length "1..255";
}
config "true";
}
leaf-list NbnsServer {
description "Specifies the NetBIOS name server, option code is 44.";
type inet:ipv4-address;
config "true";
}
leaf NbNodeType {
description "Specifies the NetBIOS node type, option code is 46.";
type enumeration {
enum B-node {
value "1";
}
enum P-node {
value "2";
}
enum M-node {
value "4";
}
enum H-node {
value "8";
}
}
config "true";
}
container UserDefOptions {
list UserDefOption {
description "Specifieds the user defined DHCP options";
key "optionCode";
Liu, Ed. & Lou Expires January 24, 2016 [Page 14]
Internet-Draft draft-liu-dhc-dhcp-yang-model-01 July 2015
leaf optionCode {
description "The option code of the user defined option";
type uint8 {
range "2 | 4..5 | 7..14 | 16..43 | 47..49 | 56 | 62..81 | 83..254";
}
config "true";
}
leaf-list ipAddress {
description "IP address list";
type inet:ipv4-address;
config "true";
}
leaf optionString {
description "User defined option string";
type string {
length "1..254";
}
config "true";
}
leaf optionHex {
description "User defined option HEX string";
type string {
length "2..508";
}
config "true";
}
}
}
container ipPoolStat {
leaf usedIpCount {
description "Used Ip Count";
type uint32;
config "false";
}
leaf idleIpCount {
description "Idle Ip Count";
type uint32;
config "false";
}
leaf conflictIpCount {
description "Conflict Ip Count";
type uint32;
Liu, Ed. & Lou Expires January 24, 2016 [Page 15]
Internet-Draft draft-liu-dhc-dhcp-yang-model-01 July 2015
config "false";
}
leaf totalIpCount {
description "Total Ip Count";
type uint32;
config "false";
}
}
}
}
container packetStatistics {
leaf clientRequestCount {
description "Client Request Count";
type uint32;
config "false";
}
leaf discoverCount {
description "Discover Count";
type uint32;
config "false";
}
leaf requestCount {
description "Request Count";
type uint32;
config "false";
}
leaf declineCount {
description "Decline Count";
type uint32;
config "false";
}
leaf releaseCount {
description "Release Count";
type uint32;
config "false";
}
leaf informCount {
description "Inform Count";
type uint32;
config "false";
}
leaf serverReplyCount {
description "Server Reply Count";
type uint32;
Liu, Ed. & Lou Expires January 24, 2016 [Page 16]
Internet-Draft draft-liu-dhc-dhcp-yang-model-01 July 2015
config "false";
}
leaf offerCount {
description "Offer Count";
type uint32;
config "false";
}
leaf ackCount {
description "Ack Count";
type uint32;
config "false";
}
leaf nakCount {
description "Nak Count";
type uint32;
config "false";
}
}
}
container client {
container dhcpClientIf {
list dhcpClientIf {
key "ifName";
leaf ifName {
description "Specify the interface name that dhcp client configured on";
type "string";
config "true";
}
leaf enable {
description "Enable or disable dhcp client function";
type "boolean";
default "false";
config "true";
}
container dhcpClientStatus {
description "Specify the status of DHCP client on the interface";
leaf status {
description "Specify the status of DHCP client on the interface";
Liu, Ed. & Lou Expires January 24, 2016 [Page 17]
Internet-Draft draft-liu-dhc-dhcp-yang-model-01 July 2015
type enumeration {
enum Init;
enum Discoverying;
enum Offered;
enum Requesting;
enum Acked;
}
config "false";
}
leaf clientIpAddr {
description "Specify the IP address obtained from DHCP server on the interface";
type inet:ipv4-address;
config "false";
}
leaf-list dnsServerIpAddr {
description "Specify the DNS server IP address obtained from DHCP server on the interface";
type inet:ipv4-address;
config "false";
}
}
container dhcpClientIfStatistics {
description "Specify the statistics of DHCP client send or receive packets on the interface";
leaf discoverCount {
description "Discover Count";
type uint32;
config "false";
}
leaf requestCount {
description "Request Count";
type uint32;
config "false";
}
leaf declineCount {
description "Decline Count";
type uint32;
config "false";
}
leaf releaseCount {
description "Release Count";
Liu, Ed. & Lou Expires January 24, 2016 [Page 18]
Internet-Draft draft-liu-dhc-dhcp-yang-model-01 July 2015
type uint32;
config "false";
}
leaf informCount {
description "Inform Count";
type uint32;
config "false";
}
leaf offerCount {
description "Offer Count";
type uint32;
config "false";
}
leaf ackCount {
description "Ack Count";
type uint32;
config "false";
}
leaf nakCount {
description "Nak Count";
type uint32;
config "false";
}
}
}
}
}
}
5. Security Considerations
TBD.
6. IANA Considerations
TBD.
Liu, Ed. & Lou Expires January 24, 2016 [Page 19]
Internet-Draft draft-liu-dhc-dhcp-yang-model-01 July 2015
7. Acknowledgements
Valuable comment was received from Gang Yan and Guangying Zheng to
improve the draft.
This document was produced using the xml2rfc tool [RFC2629].
8. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
[RFC2131] Droms, R., "Dynamic Host Configuration Protocol", RFC
2131, March 1997.
[RFC2629] Rose, M., "Writing I-Ds and RFCs using XML", RFC 2629,
June 1999.
[RFC6020] Bjorklund, M., "YANG - A Data Modeling Language for the
Network Configuration Protocol (NETCONF)", RFC 6020,
October 2010.
[RFC6021] Schoenwaelder, J., "Common YANG Data Types", RFC 6021,
October 2010.
Authors' Addresses
Bing Liu
Huawei Technologies
Q14, Huawei Campus, No.156 Beiqing Road
Hai-Dian District, Beijing, 100095
P.R. China
Email: leo.liubing@huawei.com
Kunkun Lou
Huawei Technologies
Huawei Nanjing R&D Center
101 Software Avenue, Yuhua District, Nanjing, Jiangsu, 210012
P.R. China
Email: loukunkun@huawei.com
Liu, Ed. & Lou Expires January 24, 2016 [Page 20]