|
Network Working Group Request for Comments: 2584 Category: Standards Track |
B. Clouston, Ed. Cisco Systems B. Moore, Ed. IBM Corporation May 1999 |
This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.
Copyright © The Internet Society (1999). All Rights Reserved.
This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it defines objects for monitoring and controlling HPR (High Performance Routing) network devices which have the capability to communicate in IP (Internet Protocol) networks. This memo identifies managed objects for the HPR in IP network communications.
1. Introduction
2. The SNMP Network Management Framework
3. Overview
3.1 HPR/IP Values for Objects in the APPN MIB
3.2 APPN/HPR in IP Networks MIB structure
3.2.1 hprIpMonitoringGroup
3.2.2 hprIpConfigurationGroup
4. Definitions
5. Security Considerations
6. Intellectual Property
7. Acknowledgments
8. References
9. Authors' Addresses
10. Full Copyright Statement
This document is a product of the SNA NAU Services MIB Working Group. It defines a MIB module for managing devices with HPR in IP networks capabilities.
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC 2119 [17].
The SNMP Management Framework presently consists of five major components:
Managed objects are accessed via a virtual information store, termed the Management Information Base or MIB. Objects in the MIB are defined using the mechanisms defined in the SMI.
This memo specifies a MIB module that is compliant to the SMIv2. A MIB conforming to the SMIv1 can be produced through the appropriate translations. The resulting translated MIB must be semantically equivalent, except where objects or events are omitted because no translation is possible (use of Counter64). Some machine readable information in SMIv2 will be converted into textual descriptions in SMIv1 during the translation process. However, this loss of machine readable information is not considered to change the semantics of the MIB.
This document identifies a set of objects for monitoring the configuration and active characteristics of devices with HPR in IP network capabilities. HPR is an enhancement to the Advanced Peer- to-Peer Network (APPN) architecture that provides fast data routing and improved session reliability. APPN is the aspect of Systems Network Architecture (SNA) that supports peer-to-peer networking. APPN/HPR in IP Networks is a further enhancement to the APPN/HPR architecture, described in RFC 2353 [18]. It provides a method with which APPN/HPR nodes can communicate in IP networks.
APPN management information is defined by the APPN MIB [19]. HPR management information is defined by the HPR MIB, RFC 2238 [20].
Highlights of the management functions supported by the APPN/HPR in IP Networks MIB module include the following:
This MIB module does not support:
Ports and link stations are the APPN device's interface to the data link control (DLC), which provides the physical transport, or to another protocol, such as IP. The APPN MIB identifies ports and link stations using IP as the transport with the following objects:
These objects all have the syntax IANAifType, and the value 126, defined as "IP (for APPN HPR in IP networks)" shall be returned when they identify an HPR/IP port or link station.
The IP address used for the port or link station is returned in the following objects:
These objects have the syntax DisplayableDlcAddress, defined in the APPN MIB as a textual convention to represent the address as an octet string of ASCII characters.
The following two objects return object identifiers that tie port and link table entries in the APPN MIB to lower-layer MIB entries:
Both objects should return a RowPointer to the ifEntry in the agent's ifTable for the physical interface associated with the local IP address for the port. If the agent implements the IP-MIB (RFC 2011), this association between the IP address and the physical interface will be represented in the ipNetToMediaTable.
The APPN/HPR in IP Networks MIB module contains two groups of objects:
These groups are described below in more detail.
The hprIpMonitoringGroup group consists of the hprIpActiveLsTable. This table is indexed by the link station name and traffic type, and contains a counter for the number of UDP packets sent on a link station for that traffic type.
The hprIpMonitoringGroup group consists of the following objects and tables:
1) hprIpAppnPortTable
This table supports reading and setting the default mapping between APPN traffic types and TOS Precedence settings for all link stations using a port. This mapping may be overridden for individual link stations or individual connection networks.
2) hprIpLsTable
This table supports reading and setting the mappings between APPN traffic types and TOS Precedence settings for an individual link station and APPN traffic type. If there is no entry in this table for a given link station and traffic type, then that link station inherits its mapping from its port.
3) hprIpCnTable
This table supports reading and setting the mapping between APPN traffic types and TOS Precedence settings for an individual connection network and traffic type. If there is no entry in this table for a given connection network and traffic type, then that connection network inherits its mapping from its port.
HPR-IP-MIB DEFINITIONS ::= BEGIN
Tel: 1 919 472 2333
E-mail: clouston@cisco.com
Bob Moore
IBM Corporation
4205 S. Miami Boulevard
BRQA/501
Tel: 1 919 254 4436
E-mail: remoore@us.ibm.com
"
DESCRIPTION
"The MIB module for HPR over IP. This module contains two
groups:
- the HPR over IP Monitoring Group provides a count of the UDP
packets sent by a link station for each APPN traffic type.
- the HPR over IP Configuration Group provides for reading and
setting the mappings between APPN traffic types and TOS
Precedence settings in the IP header. These mappings are
configured at the APPN port level, and are inherited by the
APPN connection networks and link stations associated with an
APPN port. A port-level mapping can, however, be overridden
for a particular connection network or link station."
REVISION "9809240000Z" -- September 24, 1998
DESCRIPTION
"Initial version, Published as RFC 2584"
::= { hprObjects 5 }
-- *********************************************************************
-- Textual Conventions
-- *********************************************************************
AppnTrafficType ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"APPN traffic type. The first four values correspond
to APPN transmission priorities (network, high, medium and
low), while the fifth is used for both LLC commands (XID,
TEST, DISC, and DM) and function-routed NLPs (XID_DONE_RQ
and XID_DONE_RSP)."
SYNTAX INTEGER { low (1),
medium (2),
high (3),
network (4),
llcAndFnRoutedNlp (5) }
AppnTOSPrecedence ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"A DisplayString representing the setting of the three TOS
Precedence bits in the IP Type of Service field for this APPN
traffic type. The HPR over IP architecture specifies the
following default mapping:
APPN traffic type IP TOS Precedence bits
------------------ ----------------------
Network 110
High 100
Medium 010
Low 001
LLC commands, etc. 110
"
SYNTAX DisplayString (SIZE(3))
-- *******************************************************************
-- hprObjects OBJECT IDENTIFIER ::= { hprMIB 1 }
-- ******************************************************************* -- *******************************************************************
-- HPR over IP Monitoring Group
--
-- This group contains a single table, the hprIsActiveLsTable,
-- providing a count of UDP packets sent with each type of
-- APPN traffic on each active link supporting HPR over IP.
-- *******************************************************************
::= { hprIp 1 }
INDEX { hprIpActiveLsLsName,
hprIpActiveLsAppnTrafficType }
::= { hprIpActiveLsTable 1 }
HprIpActiveLsEntry ::= SEQUENCE {
hprIpActiveLsLsName DisplayString,
hprIpActiveLsAppnTrafficType AppnTrafficType,
hprIpActiveLsUdpPackets Counter32 }
::= { hprIpActiveLsEntry 1 }
::= { hprIpActiveLsEntry 2 }
::= { hprIpActiveLsEntry 3 }
-- *******************************************************************
-- HPR over IP Configuration Group
--
-- This group contains three tables for reading and setting the
-- mapping between APPN traffic types and values for the TOS
-- Precedence bits in the IP header. hprIpAppnPortTOSPrecedence
-- represents the APPN port-level mapping. This mapping can be
-- overridden for an individual link station or an individual
-- connection network via, respectively, the hprIpLsTOSPrecedence
-- and the hprIpCnTOSPrecedence objects.
-- *******************************************************************
::= { hprIp 2 }
INDEX { hprIpAppnPortName,
hprIpAppnPortAppnTrafficType }
::= { hprIpAppnPortTable 1 }
HprIpAppnPortEntry ::= SEQUENCE {
hprIpAppnPortName DisplayString,
hprIpAppnPortAppnTrafficType AppnTrafficType,
hprIpAppnPortTOSPrecedence AppnTOSPrecedence }
::= { hprIpAppnPortEntry 1 }
::= { hprIpAppnPortEntry 2 }
When this value is changed via a Set operation, the new setting for the TOS Precedence bits takes effect immediately, rather
than waiting for some event such as reinitialization of the port or of the APPN node itself."
::= { hprIpAppnPortEntry 3 }
-- *******************************************************************
::= { hprIp 3 }
INDEX { hprIpLsLsName,
hprIpLsAppnTrafficType }
::= { hprIpLsTable 1 }
HprIpLsEntry ::= SEQUENCE {
hprIpLsLsName DisplayString,
hprIpLsAppnTrafficType AppnTrafficType,
hprIpLsTOSPrecedence AppnTOSPrecedence,
hprIpLsRowStatus RowStatus }
::= { hprIpLsEntry 1 }
::= { hprIpLsEntry 2 }
When this value is changed via a Set operation, the new setting for the TOS Precedence bits takes effect immediately, rather than waiting for some event such as reinitialization of the port or of the APPN node itself."
::= { hprIpLsEntry 3 }
The value of the other accessible object in this entry, hprIpLsTOSPrecedence, can be changed via a Set operation when this object's value is active(1).
An entry in this table is deleted by setting this object to destroy(6). Deleting an entry in this table causes the link station to revert to the default TOS Precedence mapping for its port."
::= { hprIpLsEntry 4 }
-- *******************************************************************
A node may have connections to a given connection network through multiple ports. There is no provision in the HPR-IP architecture for variations in TOS Precedence values for a single connection network based on the port through which traffic is flowing to the connection network. Thus an entry in this table overrides the port-level settings for all the ports through which the node can reach the connection network."
::= { hprIp 4 }
INDEX { hprIpCnVrnName,
hprIpCnAppnTrafficType }
::= { hprIpCnTable 1 }
HprIpCnEntry ::= SEQUENCE {
hprIpCnVrnName SnaControlPointName,
hprIpCnAppnTrafficType AppnTrafficType,
hprIpCnTOSPrecedence AppnTOSPrecedence,
hprIpCnRowStatus RowStatus }
identifies the connection network in the APPN topology database. If this object has the same value as the appnVrnName in the APPN MIB, then the two objects are referring to the same APPN VRN."
::= { hprIpCnEntry 1 }
::= { hprIpCnEntry 2 }
When this value is changed via a Set operation, the new setting for the TOS Precedence bits takes effect immediately, rather than waiting for some event such as reinitialization of a port or of the APPN node itself."
::= { hprIpCnEntry 3 }
The value of the other accessible object in this entry, hprIpCnTOSPrecedence, can be changed via a Set operation when this object's value is active(1).
An entry in this table is deleted by setting this object to destroy(6). Deleting an entry in this table causes the
connection network to revert to the default TOS Precedence mapping for each port through which it is accessed."
::= { hprIpCnEntry 4 }
-- *******************************************************************
-- Conformance Statement
-- *******************************************************************
-- Definitions imported from the HPR MIB:
-- hprConformance OBJECT IDENTIFIER ::= { hprMIB 2 }
-- hprCompliances OBJECT IDENTIFIER ::= { hprConformance 1 }
-- hprGroups OBJECT IDENTIFIER ::= { hprConformance 2 }
-- Compliance statements
MODULE -- this module
-- Conditionally mandatory groups
GROUP hprIpMonitoringGroup
DESCRIPTION
"The hprIpMonitoringGroup is mandatory for APPN implementations
supporting HPR over IP."
GROUP hprIpConfigurationGroup
DESCRIPTION
"The hprIpConfigurationGroup is mandatory for APPN
implementations supporting HPR over IP. It may, however,
be implemented as a collection of read-only objects."
OBJECT hprIpAppnPortTOSPrecedence
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT hprIpLsTOSPrecedence
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT hprIpLsRowStatus
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT hprIpCnTOSPrecedence
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT hprIpCnRowStatus
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
::= { hprCompliances 2 }
-- Group definitions
::= { hprGroups 5 }
::= { hprGroups 6 }
Certain management information defined in this MIB may be considered
sensitive in some network environments. Therefore, authentication of
received SNMP requests and controlled access to management
information SHOULD be employed in such environments. An
authentication protocol is defined in [12]. A protocol for access
control is defined in [15]. It is a customer responsibility to
properly set up access control for MIB access.
None of the read-only objects in this MIB reports a password, user data, or anything else that is particularly sensitive. Some enterprises view their network configuration itself, as well as information about network usage and performance, as corporate assets; such enterprises may wish to restrict SNMP access to most of the objects in the MIB.
The one read-write and four read-create objects in the MIB can affect network operations; it is recommended that SNMP access to these objects be restricted. The five objects are:
The IETF takes no position regarding the validity or scope of any intellectual property or other rights that might be claimed to pertain to the implementation or use of the technology described in this document or the extent to which any license under such rights might or might not be available; neither does it represent that it has made any effort to identify any such rights. Information on the IETF's procedures with respect to rights in standards-track and
standards-related documentation can be found in BCP-11 [16]. Copies of claims of rights made available for publication and any assurances of licenses to be made available, or the result of an attempt made to obtain a general license or permission for the use of such proprietary rights by implementers or users of this specification can be obtained from the IETF Secretariat.
The IETF invites any interested party to bring to its attention any copyrights, patents or patent applications, or other proprietary rights which may cover technology that may be required to practice this standard. Please address the information to the IETF Executive Director.
This MIB module is the product of the IETF SNA NAU MIB WG and the AIW APPN/HPR MIBs SIG. The editors would like to thank Katie Lee, IBM Corporation, for her work in creating the original version of this MIB.
[1] Harrington, D., Presuhn, R. and B. Wijnen, "An Architecture for Describing SNMP Management Frameworks", RFC 2271, January 1998
[2] Rose, M. and K. McCloghrie, "Structure and Identification of Management Information for TCP/IP-based Internets", STD 16, RFC 1155, May 1990.
[3] Rose, M. and K. McCloghrie, "Concise MIB Definitions", STD 16, RFC 1212, March 1991.
[4] Rose, M., "A Convention for Defining Traps for use with the SNMP", RFC 1215, March 1991.
[5] McCloghrie, K., Perkins, D. and J. Schoenwaelder, "Structure of
Management Information Version 2 (SMIv2)", STD 58, RFC 2578,
April 1999.
[6] McCloghrie, K., Perkins, D. and J. Schoenwaelder, "Textual Conventions for SMIv2", STD 58, RFC 2579, April 1999.
[7] McCloghrie, K., Perkins, D. and J. Schoenwaelder, "Conformance Statements for SMIv2", STD 58, RFC 2580, April 1999.
[8] Case, J., Fedor, M., Schoffstall, M. and J. Davin, "Simple Network Management Protocol", STD 15, RFC 1157, May 1990.
[9] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Introduction to Community-based SNMPv2", RFC 1901, January 1996.
[10] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Transport Mappings for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1906, January 1996.
[11] Case, J., Harrington D., Presuhn R. and B. Wijnen, "Message Processing and Dispatching for the Simple Network Management Protocol (SNMP)", RFC 2272, January 1998.
[12] Blumenthal, U. and B. Wijnen, "User-based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3)", RFC 2274, January 1998.
[13] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Protocol Operations for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1905, January 1996.
[14] Levi, D., Meyer, P. and B. Stewart, "SNMPv3 Applications", RFC 2273, January 1998.
[15] Wijnen, B., Presuhn, R. and K. McCloghrie, "View-based Access Control Model (VACM) for the Simple Network Management Protocol (SNMP)", RFC 2275, January 1998.
[16] Hovey, R. and S. Bradner, "The Organizations Involved in the IETF Standards Process", BCP 11, RFC 2028, October 1996.
[17] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997.
[18] Dudley, G, "APPN/HPR in IP Networks", RFC 2353, May 1998.
[19] Clouston, B. and B. Moore, "Definition of Managed Objects for APPN", RFC 2455, November 1998.
[20] Clouston, B. and B. Moore, "Definitions of Managed Objects for HPR", RFC 2238, May 1997.
[21] Nichols, K., Blake, S., Baker, F. and D. Black, "Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers", RFC 2474, December 1998.
Bob Clouston
Cisco Systems
7025 Kit Creek Road
Phone: +1 919 472 2333
EMail: clouston@cisco.com
Robert Moore
Dept. BRQA/Bldg. 501/G114
IBM Corporation
Phone: +1 919 254 4436
EMail: remoore@us.ibm.com
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