© 2019 Juniper Networks

日本P4ユーザー会 2019

CLOUD-GRADE ROUTING STACK FOR P4/STRATUM

Oct-11, 2019

Juniper Networks,Systems Engineer, Junya Arimura

© 2019 Juniper Networks

AGENDA

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• Juniper Strategy

• JP4 Agent

• cRPD + Stratum

© 2019 Juniper Networks

FLEXIBILITY FOR INFRASTRUCTURE TRANSFORMATION

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Flexible Silicon Options

or

Flexible Junos Options

Integrated HW + SW

StandaloneJunos SW

3rd-PartyWhite BoxHW

or +Custom Silicon

PentaTriton

Merchant SiliconQumran 2Jericho 2

© 2019 Juniper Networks

JUNOS EVOLUTIONTowards Open, Scalable and Flexible Software Architecture

Junos

CPU

• 32 bit FreeBSD

• CLI/XML• Combined

Control plane and platform code

• 64 bit FreeBSD• Virtualized Junos

over Linux • Multi-core SMP

capability• Netconf/Yang API

Linux

Junos VM

CPU CPU CPU CPU

• Separate control plane & platform code

• Rich and extensive APIs

Linux

Platform Software

PFE Software

APIs

Junos CP VM

(RPD, CoS, DCD, ….)

CPU CPU CPU CPU…

• Code in self-contained applications• High horizontal & vertical scale • Application level HA• Fine-grained and pervasive telemetry• Model driven API’s and software

Linux

Platform Software

PFE SoftwareAPIs RPD

CPU CPU CPU CPU…CPU CPU CPU CPUCPU

Distributed State Infrastructure

CoS DCD …

MGD PPMD

90’s - 2012 2012 2015 2017 and beyond

© 2019 Juniper Networks

Native integration of customer applications • Config and telemetry agents and tools • Linux based OS

Controller based operations • Data models for Config and State

Granular visibility and telemetry• Centralized State DB• Streaming and batch telemetry

Whitebox and new programming paradigms• Platform and API abstractions• P4, Openflow and others

Modular upgrades and resiliency• Componentized software • Lean packaging

State DB and Pub/Sub

RoutingMgmt

Linux with ONIE boot

Fwd

Platform 3rd

Party

Hardware – Juniper/3rd Party

Mgmt Plane API(SNMP, CLI, NETCONF,

OpenConfig)

External Tooling and Controllers

Control Plane API(JET)

Forwarding Plane API(P4, OpenFlow, AFT)

Streaming telemetry

NW Agent

JUNOS EVOLUTIONMICRO-SERVICES, CONTAINERIZATION, HA, SCALE-OUT AND MORE

© 2019 Juniper Networks

JUNIPER FORWARDING INTERFACE TOOLKIT

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https://forums.juniper.net/t5/Industry-Solutions-and-Trends/Juniper-Forwarding-Interface/ba-p/310823Juniper Forwarding Interface

© 2019 Juniper Networks

JP4 AGENT – JUNIPER P4 AGENT

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https://github.com/Juniper/JP4Agent

© 2019 Juniper Networks

JP4 AGENT – JUNIPER P4 AGENT - CONT

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https://forums.juniper.net/t5/Engineering-Simplicity/Juniper-Advancing-Disaggregation-Through-P4-Runtime-Integration/ba-p/319195Juniper Advancing Disaggregation Through P4 Runtime Integration

© 2019 Juniper Networks

JP4AGENT ARCHITECTURE

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Virtual Control PlaneJUNOS

Virtual Forwarding PlaneVirtual ASIC

© 2019 Juniper Networks

CRPD – CONTAINER ROUTING PROTOCOL DAEMON

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• Can program Linux FIB: IPv4, IPv6, MPLS• Routing Components

• RPD (Protocols + RIB)• BFD (BFD sessions)• PPMD (Protocol Keepalives)

• Management Components• MGD (Configuration manager)• CLI (Commands, Show)• Netconf, OpenConfig• Automation• Telemetry• Programmability

ManagementNETCONF, OpenConfig, YANG, SSH,

SNMP

Routing ProtocolsBGP, OSPF, IS-IS, LDP, SR, Static

Routing InfrastructureRIB Manager, Label Manager, BFD

FIB Adaptation LayerNetlink, rtsock, FPM

AutomationAnsible, Chef, PyEZ

TelemetrygNMI, Jvision

BMP

ProgrammabilitygRIBI, JET

Docker Container

Kernel, Forwarding Plane

RPD

OCP Global Summit 2019cRPD: Cloud-Grade routing for microservice environment https://www.youtube.com/watch?v=VYyLYr0rNg0&feature=youtu.be

© 2019 Juniper Networks

THE STRATUM PROJECT

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https://www.opennetworking.org/stratum/

© 2019 Juniper Networks

STRATUM USE CASES

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https://www.opennetworking.org/wp-content/uploads/2018/12/Stratum_-An-Overview.pdf

© 2019 Juniper Networks

Stratum

CRPD + STRATUMPROGRAMMABLE SWITCH WITH CRPD AS CONTROL PLANE

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FRR + Stratumhttps://www.opennetworking.org/wp-content/uploads/2018/12/Stratum_-An-Overview.pdf

cRPD

Kernel routing table

netlink

netlink/StratumMapper

netlink

P4 Runtime gNMI

P4 enabled ASIC/NIC/SoftSwitch

• cRPD provides IPv4/v6 routing/control plane stack

• Stratum provides the data plane agent• P4 allows specification of switch pipeline (ASIC

config)• P4 runtime provides API to manipulate FIB• P4 agent programs FIB state on ASIC

© 2019 Juniper Networks

USE CASE – EPE /EGRESS PEER ENGINEERING

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P4 enabled Device

cRPD

P4 enabled Device

cRPD

MPLS, SR,

Peer

Peer

Peer

ControllerPCEP, BGP SR-TENetconf

TelemetryFlowTelemetry

FlowTelemetry

EPE:100

EPE:200EPE:300

PayloadEPE Label

MPLS Label

ISIS/OSPF SR

BGP-LS

cRPD

Collector

Collector

© 2019 Juniper Networks

THANK YOU