Cumulus Linux 2.2 Overview

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Modern DC Networking for Enterprises What’s New with Cumulus® Linux® 2.1 & 2.2

Empowering the Modern Data Center

Cumulus® Networks®

Cumulus Linux 2.2

§ Modern DC Networking for Enterprises

cumulusnetworks.com 2

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2

The Hardware Ecosystem in Action Introducing x86 on network platforms

Enterprise-Centric Operational Efficiencies Simplified Configuration and Troubleshooting Comprehensive Suite of Host HA Options

The Power of the Linux Apps Ecosystem Server application portability made simple Broadened applications integration

Hardware Ecosystem in Action


CL 1.5 CL 2.2

# Pl

atfo

rms

Timeline CL 2.0

Hardware Agnostic OS - 16 Platforms added over a span of 1 year

New CPU architectures •  16 Platforms •  5 Hardware Vendors •  2 CPU architectures

40G Fixed Platforms Trident II switches •  13 Platforms •  5 Hardware Vendors

1G Fixed Platforms 10G Fixed Platforms •  6 Platforms •  3 Hardware Vendors

Hardware Ecosystem in Action – Dell s6000-ON with x86 CPU

§ Dell S6000-ON: §  First x86 platform with Cumulus Linux

§  Form Factor: 32p 40G

§  Trident II SoC •  Wire-rate •  Supports rich feature set including VXLAN •  Low latency

§  Dell brand and professional services

§  ONIE specific SKU from Dell S6000


Hardware Ecosystem in Action - x86 CPU

§ One step closer in managing switches like servers – x86


§  Strong, simplified server app portability

§  Custom development made easy

•  No need to cross-compile

Introducing support for x86

NSX

Access the Linux application ecosystem for networking

Hardware

Cumulus® Linux®

Hardware Ecosystem in Action – 10G SFP+ Trident II platforms

§ More Choice — 10G SFP+ TII Platforms 10G-SFP+ Trident II platform addition: §  48p x 10G-SFP+ + 6xQSFP+ form factor

§  VXLAN Support

§  Perfect port density for leaves

§  Reuse existing 10G transceivers & cables

§  First platform supported: Penguin Computing Arctica 4806XP


Enterprise-Centric Operational Efficiencies

Improved, Scaled, Simplified Interface Configuration (ifupdown2): §  Apply configuration with minimum disruption

•  Brings interfaces up/down as required

§  Simplified configuration •  Apply diffs to persistent configuration •  Dependent configurations applied automatically •  Simplified glob function •  Reduced configuration file size, Faster to read and execute

§  Fully Extensible •  Written in Python

§  Improved error handling


Operation Efficiencies — Better Linux Networking Experience

Enterprise-Centric Operational Efficiencies – Route Scale

CL 2.1 scales number of prefixes available to 32K entries


Switch Performance Trident II Switches

MAC address table •  32K entries

•  Hardware capable of 288K entries through Algorithmic LPM expansion

Routes / Prefixes

•  32K entries through Algorithmic LPM expansion (32K IPv4/ 16K IPv6), Hardware Capable of 128K - Minimum Software Release: CL 2.1.0

•  Alternate 16K TCAM-only mode - Default mode for CL 2.0.x releases (8K IPV4/ 4K IPV6 (64 bit mask), 2K IPv6 (128 bit mask))

Host Routes •  16K Host Entries (16K IPv4 / 8K IPv6)

•  Hardware capable of 112K entries through Algorithmic LPM expansion

Enterprise-Centric Operational Efficiencies – Host HA

§ Comprehensive Suite of Host HA solutions


Single Attached Host Active/Backup Bond Dual-Attached Host

Active/Active Bond Host-MLAG

Host, Redistribute neighbor*

Common Applications: Hadoop, WebScale

Common Applications: Virtual Workloads

Common Applications: Enterprise Workloads

Applications: Verified on Linux Hosts

* Experimental

Enterprise-Centric Operational Efficiencies – PTM Enhancements through BFD


§  Fault detection mechanism between two endpoints

§  Fast failure detection in place of regular keep alive

•  Subsecond Dead timers

§  Lightweight, consistent mechanism across protocols

•  One BFD session can work in conjunction with multiple protocols, in a consistent fashion – OSPF, BGP, …

BFD L3 Fabric

Bidirectional Forwarding Detection (BFD) enables:

Enterprise-Centric Operational Efficiencies - PTM Enhancements


§ Enhancements: §  PTM uses the topoloy.dot file to

configure BFD sessions

§  PTM supports three parameter types in the topology file now: global, per-port and templates.

graph G {

LLDP=""

BFD="upMinTx=300,requiredMinR

x=100"

"cumulus":swp44 -- "qct-

ly2-04":swp20

[BFD="upMinTx=150,requiredMin

Rx=250"]

"cumulus":swp46 -- "qct-

ly2-04":swp22

}"

Modern DC Design Flexibility – Lightweight Network Virtualization (LNV)

§  Self-contained overlay solution for bare metal switches

§  Lightweight overlay solution §  Leverages VXLAN §  Small deployments - small number of tenants,

static provisioning §  Controller-less, Replicates broadcast, unknown

unicast and multicast (BUM) for virtual network members

§  Components: §  Peer Discovery & VXLAN replicator node


Lightweight Network Virtualization– Overlay solution for L2 Cloud services on bare metal switches

The Power of the Linux Apps Ecosystem

cumulusnetworks.com

•  Fast Growing ecosystem §  Joint Solutions with Technology

Partners

§  40K+ Apps from Debian to leverage • 

Rapid Integration with Third Party Applications

§  <60 days for integration for Midokura and Fox-T solutions

Cumulus Linux as a Platform for Apps Save on OPEX with Linux toolset

The Power of the Linux Apps Ecosystem - sFlow

•  sFlow provides network visibility: §  Capacity Planning §  Performance Monitoring §  Troubleshooting §  Security

•  Host sFlow Agent

§  Open Source sFlow Agent §  Consistent with server approach

•  Integration with InMon: Experimental in CL2.1,

Supported in CL 2.2


http://host-sflow.sourceforge.net/

Packet Sampling 1 in N

Switch Silicon

Host sFlow Agent

Linux Apps Ecosystem – sFlow

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§ Thank You!


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