Downloaded 52 times
Uploaded byYi Tseng
ONOS intent introduction
This document discusses ONOS's intent framework, including: - Built-in intents like HostToHost and PointToPoint intents - Intent compilers that compile intents into installable rules - The intent service that manages intents by submitting, withdrawing, and purging them - How to use intents in an ONOS application by creating an intent object and submitting it to the intent service
More Related Content
ONOS intent introduction
- 1. #OpenCORD #ONOSProject ONOS Intentframework Yi Tseng <yi@onos-ambassadors.org> ONOS Contributor / Ambassador Dec 29, 2016 Taiwan, NCTU
- 2. #OpenCORD #ONOSProject • Introduction •Built-in intents • Intent compilers • Intent service • Commands • Use intent in ONOS application Outline
- 3. #OpenCORD #ONOSProject • TsengYi (Takeshi) • NCTU W2CNLab • ONOS contributor • ONOS Projects: • Old/New VPLS • New MP2SP/SP2MP/LC Intent • SDN-IP example VM Who am I?
- 4. #OpenCORD #ONOSProject • Asubsystem in ONOS. • Allows applications install policies into network. • Intents contains policies, resources and constraints. • ONOS compiles intents into installable intents and installs rules (flows) into specific network devices. • Developers can extend built-in intents to new intent for special purpose. Introduction(1/2)
- 5. #OpenCORD #ONOSProject • Anintent should contains: • Intent ID • App ID • Intent key • Priority • Network resources • Different kinds of Intent might contains other attributes: • Ingress port(s) • Egress port(s) • Encapsulation type Introduction(2/2)
- 6. #OpenCORD #ONOSProject • HostToHost •PointToPoint • SinglePointToMultiPoint • MultiPointToSinglePoint • TwoWayP2PIntent • FlowRuleIntent • FlowObjectiveIntent • …. Built-in intents
- 7. #OpenCORD #ONOSProject • CompilesIntents into Installable Intents. • Different Intent Compiler for different types of Intent. Intent compilers H2H P2P SP2MP MP2SP Path LC FR FO
- 8.
- 9. #OpenCORD #ONOSProject • ManageIntents. • Basic operation: submit, withdraw, purge. • Get Intent information. Intent service
- 10. #OpenCORD #ONOSProject • Getintent information • intents (all intents) • intents -s (all types of intent and state information) • intents -i (all intents with details) • Add intent by cli • add-host-intent • add-point-intent • add-multi-to-single-intent • add-single-to-multi-intent • By GUI Commands
- 11. #OpenCORD #ONOSProject • GetIntentService • Create an Intent • Submit Intent by IntentService Use Intent in ONOS application intent = SinglePointToMultiPointIntent.builder() .appId(appId) .key(key) .selector(selector) .filteredIngressPoint(src) .filteredEgressPoints(dsts) .priority(PRIORITY_OFFSET) .build();
- 12. #OpenCORD #ONOSProject Write somecode…….. Quick Demo
- 13. #OpenCORD #ONOSProject • 4MP2SP intent • Match ethernet destination • Update intents when host updated. Simple L2 forwarding Network Host Host Host Host
- 14.
Editor's Notes
- #3 Rather than provide a taxonomy of the various APIs available in the ONOS platform, I hope to describe some of the properties and rationale for these APIs. ... illustrated by examples.