Cumulus Networks introduces Cumulus Linux 2.1 and 2.2, enhancing modern data center networking with improved operational efficiencies and expanded hardware ecosystem support, including x86 platforms. Key features include simplified configuration, enhanced performance for switch architectures, host high availability solutions, and integration with Linux applications for better network management. The updates aim to streamline data center operations while providing flexibility and robust tooling for enterprises.

1. v
Modern DC Networking for Enterprises
What’s New with Cumulus®
Linux®
2.1 & 2.2
Empowering the Modern Data Center
Cumulus® Networks®

2. Cumulus Linux 2.2
§ Modern DC Networking for Enterprises
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1
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

3. Hardware Ecosystem in Action
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CL 1.5 CL 2.2
#Platforms
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

4. 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
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5. Hardware Ecosystem in Action - x86 CPU
§ One step closer in managing switches like servers – x86
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§ 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®

6. 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
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7. 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
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Operation Efficiencies — Better Linux Networking
Experience

8. Enterprise-Centric Operational Efficiencies – Route Scale
CL 2.1 scales number of prefixes available to 32K entries
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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

9. Enterprise-Centric Operational Efficiencies – Host HA
§ Comprehensive Suite of Host HA solutions
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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

10. Enterprise-Centric Operational Efficiencies – PTM Enhancements through BFD
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§ 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:

11. Enterprise-Centric Operational Efficiencies - PTM Enhancements
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§ 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
}"

12. 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
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Lightweight Network Virtualization– Overlay solution for
L2 Cloud services on bare metal switches

13. The Power of the Linux Apps Ecosystem
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• 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

14. 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
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http://host-sflow.sourceforge.net/
Packet Sampling
1 in N
Switch Silicon
Host sFlow Agent
Linux Apps Ecosystem – sFlow

15. © 2014 Cumulus Networks. Cumulus Networks, the Cumulus Networks Logo, and Cumulus Linux are trademarks or registered trademarks of Cumulus Networks, Inc. or its affiliates
in the U.S. and other countries. Other names may be trademarks of their respective owners. The registered trademark Linux® is used pursuant to a sublicense from LMI, the
exclusive licensee of Linus Torvalds, owner of the mark on a world-wide basis.
§ Thank You!
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Bringing the Linux Revolution to Networking