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Testing 100G ©Xena Networks, May 2012
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Testing 100G

©Xena Networks, May 2012

Who works with 100G Ethernet?

What is it used for?What is it used for?

How to test it?

©Xena Networks, May 2012

What is driving 100G Ethernet?

Explosive traffic demand pushing existing networksMobile broadband data and videoEthernet wholesale and mobile backhaul servicesCloud services and cloud-based applications

Simplify networksAlready, many are using n x 10GE links to interconnect sites y, y gOperate fewer, higher-capacity links, overcome link aggregation limitations, simplify routing, simplify MPLSL ki t t k b tt d t f t ti ti l lti l i Looking to take better advantage of statistical multiplexing

Ride down the Ethernet cost curveRide down the Ethernet cost curveWith “Ethernet everywhere” 100GE solutions will become affordable enough to be deployed to control network costs

©Xena Networks, May 2012

100G Ethernet adoption

Infrastructure componentsMultiple suppliers shipping 100GE optical modulesComponent companies shipping FPGA’s, ASICs, NPUsA dozen equipment vendors shipping platforms with 100GETest solutions are available for 100GE Layer 1 3 testingTest solutions are available for 100GE Layer 1-3 testing

Operators and service providersp pFirst strategic adoptions by the end of 2012Significant adoption of 100GE by end of 2013

DatacentersIntel Romley server 10GE "LAN on Motherboard” and PCI Intel Romley server 10GE LAN-on-Motherboard , and PCI Express Gen 2/3 to drive growth in top-of-rack 40GE interconnect

©Xena Networks, May 2012

100G Ethernet Testing Status

• Automated production testing for 100GE• High port density testbeds

• QoS and stream integrity• Switching and routing performance

Layer 2/3

• Telecom PoC aggregation links, and WDM• Industry benchmarks (RFC2544, RFC2889)

Layer 2/3

• Forwarding and Throughput Capacity

• PCS layer

• Optical transceiver and cable bit-error ratio

• Packet IntegrityLayer 1

©Xena Networks, May 2012

p

100G Optical Family

100G SR10100m MMF (OM3/4)

100G LR4, ER410, 40 km SMF

100G 10x1010 km SMF

100 and 40G optical100G migrating to

ll f f t CXP, CFP CFP CFPsmaller form factorsCurrent 100G LR4 cost too high

CFP CXP CFP CFPg

10x10 CFP, lower cost (Santur, Google Brocade ?

CXP2 (2013) CFP2 (2013) QSFP2 (2014)

Google, Brocade, JSDU)New CMOS-based

40G SR4100m MMF (OM3/4)

QSFP+, CFP

40G LR4, ER410, 40 km SMF

CFP

100G LR4 Gearbox devices will reachmarket in 2012,

QSFP+ CFP CFP CFP

,reducing power and cost

QSFP+

©Xena Networks, May 2012

CFP-based Test Equipment

All 10/40/100G optical interfaces available in CFP10G LR/SR, 40G LR4/SR4, 100G LR4/SR10Natively or via CFP adapter

CFP adapters (QSFP+, CXP, SFP+)p (Q , , )

Forward compatible

CFP <-> QSFP+ CFP <-> CXP CFP <-> 4 x SFP+ (Cisco ”FOURX”)

Future CFP2, QSFP2, CXF2 is optical and host compatible with existing CFP opticswith existing CFP optics

Xena 40/100G tester compatible with 10GETh l T i S d 8 10G 2 40G 1 100G

©Xena Networks, May 2012

The only Tri-Speed: 8 x 10G, 2 x 40G, or 1 x 100G

New 100/40G PCS and PMA architecture

PCS and PMA architectureCAUI, 100G, 20 x 5 Gbps lanesXLAUI, 40G, 4 x 10 Gbps lanes

CAUI 100G LR4 PCS/PMA architecture

PCS Lanes20 x 5 Gbps

CAUI Interface10 x 10.3125

4 x 25 Gbps 4 x λ

CAUI 100G LR4 PCS/PMA architecture

SMF20 x 5 Gbps

0

10 x 10.3125 Gbps SerDes

λ0

λ1

.PCS

012

01.

01 PMD

λ2

λ3PMA 10:4

PMA 20:10.

.

19 9

.

.23 λ0

λ1

λ2

Gearbox20:10

©Xena Networks, May 2012

9 λ2

λ3

Physical Layer Testing (PMA)

Increased complexity of 100G optics Testing and screening during development and productionCareful inspection and cleaning of connectorsUse an unframed PRBS per lane to determine if your 100/40 Gbps optical transceivers function correctly100/40 Gbps optical transceivers function correctly.

How To:1. Insert the transceiver optics into the Xena tester and an

optical loopback cable in the CFP module. 2 Then enable PRBS for all lanes and run the test for 24 2. Then enable PRBS for all lanes, and run the test for 24

hours minimum to verify no PRBS errors are detected.

The loopback cable must be clean and able to pass error-free traffic on any other known good transceiver.

©Xena Networks, May 2012

Physical Layer Testing (PMA)

CAUI/XLAUI SerDes characterizationAccess to electrical CAUI SerDes allows for accurate host PCB h t i ti d i R&DPCB characterization during R&DTune host board voltage swing and pre-emphasis settings

©Xena Networks, May 2012

Physical Layer Testing (PCS)

Lane skewSkew is an issue for any parallel high-speed busValidate per lane buffer and alignment using skew insertionSkew tolerances specified by IEEE 802.3ba

λ0SP6

SP4Rx PCS

Skewpoint

Maximum Skew at 100GBASE-R

SP1 29 ns (150 UI)

.

.PCS

012 PMA

20:10

01

.

.

PMA 10:4Gearbo

012

PMD

λ0

λ2

λ0

SP6SP5

SP1 29 ns (150 UI)

SP2 43 ns (222 UI)

SP3 54 ns (278 UI).

19

0

9

. x 23 λ0

λ0

λ2

λ0SP1SP2

SP3Tx PCS

SP4 134 ns (691 UI)

SP5 145 ns (748 UI)

SP6 160 ns (824 UI)SP3

At Rx PCS 180 ns (928 UI)

Note that for 40GBASE-R, 1 UI is equal to 97 ps at PCS lane signaling rate of 10.3125 Gbps

©Xena Networks, May 2012

o a o 0 , U qua o p a a g a g a o 0 3 5 bpNote that for 100GBASE-R, 1 UI is equal to 194 ps at PCS lane signaling rate of 5.15625 Gbps

Physical Layer Testing (PCS)

Lane skewLane skewing errors can lead to interface link-down problems th t diffi lt t d b i d l d tthat are difficult to debug in deployed systems.

How to:How to:1. Insert 10 UI (bits) skew on multiple lanes and verify that the

PCS markers remain aligned. 2. Then, increase the skew incrementally until lane alignment

lock is lost to find the maximum skew for the DUT.

IEEE 802.3ba requires a skew tolerance of 928 UI at the Rx PCS

©Xena Networks, May 2012

Physical Layer Testing (PCS)

Lane swappingLane swapping errors can lead to interface link-down problems th t diffi lt t d b i d l d tthat are difficult to debug in deployed systems.

How to:How to:1. Configure tester to transmit L2/3 traffic from the tester

across the DUT and back to the same tester port. 2. Then, verify that header lock and alignment lock works on

all Rx lanes, to check all lanes are recognized and are aligned. g

3. Then swap lanes randomly and verify the new Rx lane mapping and that L2/3 traffic is passing error free

©Xena Networks, May 2012

RFC 2544 benchmarking

RFC 2544 - PURPOSEVerifies forwarding performance, including th h t ( f il bilit ) b k t b k throughput (performance availability), back-to-back (link burstability), latency (transmission delay) and frame loss (service integrity) measurements.

Xena testers can perform RFC 2544 for 100G and 40G Ethernet interfaces at all frame sizes and at full40G Ethernet interfaces at all frame sizes and at full-line rate.

BENEFITHelps vendors and service providers certify that the link is efficient and error free at 100% utilization at link is efficient and error-free at 100% utilization at Layer 2 (VLAN) or layer 3 (IP).

©Xena Networks, May 2012

RFC 2889 benchmarking

RFC 2889 - PURPOSEFor testing 40G and 100G datacenter switches

Mesh testing of large-scale switches, and multicast-only throughput test cases where latency y g p yand throughput are key performance parameters

X t t f RFC 2889 f 100G d Xena testers can perform RFC 2889 for 100G and 40G Ethernet interfaces at all frame sizes and at full-line rate.

BENEFITHelps data centers verify the switch can meet Helps data centers verify the switch can meet stringent demand for low-latency and lossless throughput performance

©Xena Networks, May 2012

Automation environments for quality

Automated test environments for production

Multirate test equipment for testing multirate data center switches, and telecom equipment

Broadcom 40/100G switch silicon is multirate 10/40/100G enabled

Id l h i i l ifi d t tb d f d ti t ti f Ideal having a single unified testbed for production testing of both 10, 40, and 100 Gbps modes of operation

Command line TCP/IP based scriptingCommand line TCP/IP based scriptingfrom any client environment(Tcl, Java, Perl, Python, VBA)

©Xena Networks, May 2012

Cisco Catalyst 6500, 4 x 40G, or 16 x 10G

CASE STUDY - Cabling Manufactures

Furukawa Industrial - Japan

Tested OM4 MMF channel links over distances from 70 to 520 meters by simulating a real network. (The standard defines 150m with OM4 MMF Cables.)150m with OM4 MMF Cables.)

100G c

XenaCompactMMF

a b

c

Optical MPO to MPO cables 12 Fibers MMF OM4

Reichle & De-Massari (R&M) – Switzerland

Optical MPO to MPO cables 12 Fibers MMF OM4

Lossless transmission over 550 meters of fiber optic cable and nine MPO connectors / 6-hour demonstration with no bit errors

©Xena Networks, May 2012

CASE STUDY – Global ISP

London New York

Infinera DTN Infinera DTN

Brocade10x 10G

connections Brocade10x 10G

connectionsBrocadeRouter

BrocadeRouter

connections

Tier 1 ISPGlobal IP

Xena 100G Tester Xena 100G

Global IP Network

©Xena Networks, May 2012

Tester Tester

Selecting a 40/100G test platform (1/2)

High port density for 40 GE and 100 GE testing 6 x 100GE, 12 x 40GE, or 48 x 10G in 4U chassisIndustry’s only 1U rackmount 1 x 100G / 2 x 40G / 8 x 10G

Industry price/performance leader for 100/40G testingy p /p / g

Comprehensive testing of the physical coding sublayerCh k li IEEE STD 802 3bChecks compliance to IEEE-STD 802.3baUnframed layer 1 BERT per PCS lane, for testing both MMF and SMF optics.a d op

Software selectable 8 x 10 GE, 2 x 40 GE or 1 x 100GEIndustry’s only 10G compatible 100G Tester

©Xena Networks, May 2012

Selecting a 40/100G test platform (2/2)

Layer 1-3 testing with wire rate traffic generationWire-speed stream based traffic generation and statisticsTraffic filter statistics, histogramsJumbo frame support (9200B)

Analyzes full wire rate 40 / 100 GE trafficReal-time latency, Packet loss, Data integrity, Packet capturey, , g y, pPacket capture with Wireshark support

S i ti b TCP/IP k t C d Li I t f Scripting by TCP/IP socket Command Line Interface From any TCP/IP environment, no drivers or APIs needed Same CLI spec for any port speed (10M – 100G)Same CLI spec for any port speed (10M 100G)

Industry benchmark tests RFC2544, RFC2889

©Xena Networks, May 2012

Y.1564 test suite to be released soon

Corporate Profile

Founded 2007 by group of communications professionals

Corporate HQ in Copenhagen (Denmark), Boston (US)

Self funded through organic growthSelf-funded through organic growth

Winner of global awards for price-performance leadership g p p pincl. Frost & Sullivan and Red Herring

©Xena Networks, May 2012

Thank You!

QUESTIONS?

Jacob Nielsen(CEO, Xena Networks)

[email protected]

©Xena Networks, May 2012


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