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Data Center Group

Cisco System

Ultra Low Latency solutions withCisco Nexus 3548

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Microsecond

Nanosecond

What is next? Picosecond

Not for a long time.....

1.000

0.001

0.000001

Quick Note:

Intel x86 server DDR3 memory access times are typically 60 – 150

nanoseconds 2Cisco Public

LatencyThe Race Past ZERO

2

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Nexus 3064-E28-Port 1RU Switch

Nexus 3048TP48-Port 1RU Switch

Nexus 3016Q96-Port 2RU Switch

Nexus 3064-XIntegrated Phy

vPC, Precision Time Protocol,

Configurable Control Plane Policing

Power-on auto-provisioning,

Encapsulated Remote Switched Port Analyzer

Wired-network rate L2/L3 feature set,

IPv4/v6

User programmable: python scripting, EEM,

NETCONF

Cisco Nexus® 3000 Series

Customers

Industry’s leading Ultra Low Latency Platform

2011

2013

2012

Nexus 354848-Port 1RU SwitchLatency: 50 – 240 ns !!

Nexus 3064-T48-Port 10G-BaseT

New

Cisco Nexus 3000 SeriesOne architecture for 1G/10G/40G

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CISCO ALGORITHM

BOOST TECHNOLOGY

Industry leading Ultra-Low latency switch

High-performance trading (HPT)

High-performance

Computing (HPC)

Big Data environments

High Performance with NX-OS Innovations

Robust Protocols Cisco ONE

Powered by Cisco Custom Silicon“Monticello”

Algo-Boost Technology

Cisco Nexus 3548

4

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Algo BoostPacket

Timestamping

Lowest Latency

NAT Active Buffer

Monitoring

Precision Time Protocol + Pulse Per Second

Congestion Avoidance

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N3548 Forwarding Paths Logical Diagram

Classification

ACL

Egress Port

L2

L3 L2+L3

Incoming Packet

1 Normal

WARP

Forwarding Paths

WARP SPAN

2

3

321

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Warp Mode48

40

Order RoutingOrder Routing

EXCHANGE A

190ns

NASDAQ® TotalView-ITCH® Latency via TipOFF®

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Nexus 3548 Differentiators WARP SPAN

Original Packet

1/36 1 - 4

5 - 8

9 -

12

13

- 1

6

37

- 4

03

3-

36

*2

9-

32

25

- 2

8

17

- 2

02

1 -

24

45

-4

84

1-

44

WARP SPAN Packet

SharedBuffer

• WARP SPAN enables mirroring of all the ingress traffic on a dedicated port to user configurable group of ports

• The Latency of the WARP SPAN’d packets would be ~50 nanosec

• WARP SPAN source has to be port Ethernet 1/36

• The traffic received on the WARP SPAN source will be forwarded normally along with the WARP SPAN

• WARP SPAN destination would be group of 4 ports as shown

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Nexus 3548 Differentiators WARP SPAN – Use Case – Serving Feed Handler

Exchange Feeds

Messaging Bus

Trading Firm

Feed HandlerOriginal Packet

1/36 1 - 4

5 - 8

9 -

12

13

- 1

6

37

- 4

03

3-

36

*2

9-

32

25

- 2

8

17

- 2

02

1 -

24

45

-4

84

1-

44

WARP SPAN Packet

SharedBuffer

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Warp SPAN4836

40

Feed Replication

EXCHANGE A

2466666665

4

50ns

NASDAQ® TotalView-ITCH® Latency via TipOFF®

Thank you.

cisco.com/go/nexus3548