IPFIX Working Group B. Claise
Internet-Draft P. Aitken
Intended status: Standards Track S. B S
Expires: August 29, 2013 Cisco Systems, Inc.
J. Schoenwaelder
Jacobs University Bremen
February 25, 2013
Exporting MIB Variables using the IPFIX Protocol
draft-ietf-ipfix-mib-variable-export-02
Abstract
This document specifies a way to complement IPFIX Flow Records with
Management Information Base (MIB) objects, avoiding the need to
define new IPFIX Information Elements for existing Management
Information Base objects that are already fully specified.
This method requires an extension to the current IPFIX protocol. New
Template Set and Options Template Sets are specified to allow the
export of Extended Field Specifiers, which may represent IPFIX
Information Elements and Simple Network Management Protocol (SNMP)
MIB Objects.
Status of this Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
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This Internet-Draft will expire on August 29, 2013.
Copyright Notice
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document authors. All rights reserved.
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Table of Contents
1. Open Issues / To do list . . . . . . . . . . . . . . . . . . . 4
2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 5
3. Motivation and Architectural Model . . . . . . . . . . . . . . 6
4. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 8
5. Extended Records . . . . . . . . . . . . . . . . . . . . . . . 8
5.1. Extended Template Record Format . . . . . . . . . . . . . 8
5.2. Extended Options Template Record Format . . . . . . . . . 10
5.3. Extended Field Specifiers . . . . . . . . . . . . . . . . 11
5.3.1. Standard Field Specifier Format . . . . . . . . . . . 11
5.3.2. Extended Field Specifier Format . . . . . . . . . . . 12
5.3.3. Extended Field Specifier Format for IPFIX
Information Elements . . . . . . . . . . . . . . . . . 15
5.3.4. Extended Field Specifier Format for a non-indexed
MIB Object . . . . . . . . . . . . . . . . . . . . . . 16
5.3.5. Extended Field Specifier Format for an indexed MIB
Object, with a MIB OID as index . . . . . . . . . . . 17
5.3.6. Extended Field Specifier Format for an indexed MIB
Object, with an IPFIX Information Element as index . . 20
5.3.7. Extended Field Specifier Format for an indexed MIB
Object, with a previous IPFIX Information Element
as index . . . . . . . . . . . . . . . . . . . . . . . 24
5.3.8. Extended Field Specifier Format for an Indexed MIB
Object, with an IPFIX Information Element for the
OID segment identifying the instance . . . . . . . . . 27
5.4. Identifying the SNMP Context . . . . . . . . . . . . . . . 30
5.5. Template Management . . . . . . . . . . . . . . . . . . . 30
6. Example Use Cases . . . . . . . . . . . . . . . . . . . . . . 31
6.1. Without Using the Specifications in this Document . . . . 31
6.2. Non-indexed MIB Object: Established TCP Connections . . . 32
6.3. Enterprise Specific MIB Object: Detailing CPU Load
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