Network Working Group S. Whyte
Internet-Draft Google Inc.
Intended status: Informational M. Hines
Expires: April 24, 2014 W. Kumari
Google, Inc.
October 21, 2013
Bulk Network Data Collection System
draft-swhyte-i2rs-data-collection-system-00
Abstract
Collecting large amounts of data from network infrastructure devices
has never been very easy. Existing methods generate CPU and memory
loads that may be unacceptable, the output varies across
implementations and can be difficult to parse, and these methods are
often difficult to scale. I2RS programmatic interfacing with the
routing system may exacerbate this problem: state needs to be
collected from nodes and fed to consumers participating in the
control plane that may not be physically close to the nodes. This
state includes not only control plane information, but elements of
the data plane that have a direct impact on control plane behavior,
like traffic engineering.
This document outlines a set of use cases requiring a flexible
framework to collect routing system data, and the features and
functionality needed to make such a framework useful for these use
cases.
Requirements Language
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 [RFC2119].
Status of This Memo
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provisions of BCP 78 and BCP 79.
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Whyte, et al. Expires April 24, 2014 [Page 1]Internet-Draft Bulk Data Collection October 2013
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This Internet-Draft will expire on April 24, 2014.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Desired functionality . . . . . . . . . . . . . . . . . . . . 3
2.1. Database Model . . . . . . . . . . . . . . . . . . . . . 4
2.2. Pub-Sub . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.3. Capability Negotiation . . . . . . . . . . . . . . . . . 5
2.4. Format Agnostic . . . . . . . . . . . . . . . . . . . . . 5
2.5. Transport Options . . . . . . . . . . . . . . . . . . . . 5
2.6. Filtering . . . . . . . . . . . . . . . . . . . . . . . . 5
2.7. Timestamps . . . . . . . . . . . . . . . . . . . . . . . 6
2.8. Introspection . . . . . . . . . . . . . . . . . . . . . . 6
2.9. Registration . . . . . . . . . . . . . . . . . . . . . . 6
3. Use cases . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1. Push . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1.1. Interface counters . . . . . . . . . . . . . . . . . 7
3.1.2. Thresholds . . . . . . . . . . . . . . . . . . . . . 7
3.1.3. Streaming . . . . . . . . . . . . . . . . . . . . . . 7
3.2. Pull . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2.1. Interface counters . . . . . . . . . . . . . . . . . 8
3.2.2. RIB Dump . . . . . . . . . . . . . . . . . . . . . . 8
3.2.3. Arbitrary data collection . . . . . . . . . . . . . . 8
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