Athens Datacentres And 10 G
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Transcript of Athens Datacentres And 10 G
10GBASE-T &Data Centre solutions
K G HodgeR&D Manager
Brand-RexNovember 2009
Brand-Rex Copyright 2009 2
2010 - the year of 10Gbps technologies
9/3/2009
• Dell’Oro Group – “copper-based 10GigE adapter port shipments are expected to grow from 33K in 2008 to 1.5M in 2013”
• Intel - “10GbE connectivity is on a growth path driven by the needs for higher perfromance and supported by falling per-port prices”
• Cisco – “the adoption of Data Center Ethernet will help enable a unified fabric in the data centre, reducing costs and simplifying management”
Brand-Rex Copyright 2009
Cabling for 10GbE technolgies
10GBASE-
Cabling E L LX4 LRM S CX4 T
OS1 SMF 40km 10km 10km x x x x
OM3 MMF x x 300m 220m 300m x x
OM2 MMF x x 300m 220m 82m x x
OM1 MMF x x 300m 220m 33m x x
Class EA x x x x x x 100m
Class E x x x x x x Note 1
Class D x x x x x x xCable
assembly x x x x x 15m x
9/3/2009
Note 1: Standards advise that UTP cabling reaches 37m without mitigation for ANEXT and that screened cabling reaches full channel length
The latest emerging application - 10GBASE-T
10,000,000,000 bps
10GBASE-T Transmission
DigitalSignal
Processor(DSP)
10 Gbit/s
Active Equip Active Equip 2.5 Gbit/s
10 G
bit/
s
2.5 Gbit/s
2.5 Gbit/s
2.5 Gbit/s
NEXT FEXT
DigitalSignal
Processor(DSP)
Return Loss
AlienXT(AXT)
nearbyUTP
cable
EMI10GBASE-T signal spectrum up to 500 MHz
External noise & complex signal - BER 10-12
802.3an - Cabling Channel Spec
-40
-20
0
20
40
60
80
100
1 10 100 1000
MHz
dB
Return loss (dB)
Insertion loss (dB)
NEXT (dB)
PSNEXT (dB)
PSANEXT (dB)
ELFEXT (dB)
PSELFEXT (dB)
AELFEXT (dB)
ACR (dB)
PSACR (dB)
PSAACRN (dB)
10GBASE-T channel - June 2006
Signal attenuation
Alien Crosstalk
Signal = Noise @ 500MHz
Alien XT – UTP
• 10GPLUS AC6 UTP cabling• 90m link
- Cables ‘6 round 1’ • Fluke DTX1800 with Alien XT adaptors• Significant links - all• 7dB margin
PSANEXT - AC6 UTP Cable
30
40
50
60
70
80
90
100
0 50 100 150 200 250 300 350 400 450 500
MHz
dB
PSANEXT - Screened Cabling
0
10
20
30
40
50
60
70
80
90
100
0 100 200 300 400 500
MHz
dB
Alien XT – Screened
• 10GPLUS AC6 screened cabling
• Fluke DTX1800 & Alien XT adaptors
• Significant links- Adjacent links only
• 30dB+ margin
Cabling Type
System Bandwidth AXT Test Strategy Note well:
Installed Cable
Cat6Plus UTP 250MHz IEC 61935-1 ed 3.0 Length limited Class E
Cat6Plus screened 250MHz Proven by Design*Class E - only AXT is
proven by design
New Installations
10GPLUS UTP 500MHz IEC 61935-1 ed 3.0* Class EA system
10GPLUS screened 500MHz Proven by Design* Class EA system
Test Method - draft IEC 61935 ed 3 & draft IEC 14763-2- 15 minimum or 3% of the links
- E.g. 10,000 links = 300 test points
A Practical Alien Crosstalk Test Strategy:
* Assured by Brand-Rex Laboratory testing
10GBASE-T - reach• IEEE802.3an:2006 advises :
– ClassE UTP supports up to 55m, – Class E screened supports up to 100m– Class EA screened or UTP supports up to 100m
• ISO/IEC 11801:2002 Amm1 advises :– ClassEA supports 100m
• ISO/IEC TR 24750 states that :– Class E UTP channels should support 10G up to 55m and >55m with mitigation. – Class E screened should support 100m
• TIA/EIA TSB155 states :– Cat6 operates up to 37m, should operate up to 55m depending on AXT
environment, – >55m requires AXT mitigation
• ANSI/TIA/EIA 568B.2-10 advises :– Cat6a supports 100m
10GBASE-T devices
SMCCat5 UTP 45m 2 connCat6 UTP 55m 2 connCat6a UTP 100m 4 connCat7STP 100m 4 conn
Intel/DellCat6 55mCat6a 100mCat7 100m
Brand-Rex Copyright 2009 12
Copper Links
• 10GBASE-T devices are on the market– 14-15W– Device manufacturers recognise Cat5, 6, 6A and 7
cabling– Standards committees recognise Cat6, 6A and 7
cabling to run 10GBASE-T• 10GBASE-T is limited by signal attenuation and
the noise from adjacent cables.• 10GBASE-T technology is susceptible to EMI9/3/2009
10GBASE-T Alien Crosstalk tests
Brand-Rex LabsJune 2009
Cabling Under Test
• Cabling – ‘Worst’ case condition– ‘6 round 1’ cables in full
length channels– Normal termination– Multiple connector links
NV
N
NN N
N
Basic link configurations
client
EquipmentCord
Horizontal cable
EquipmentCord
connector connector
client
client
Switch
EquipmentCord
Horizontal cable
EquipmentCord
connector connector
client
EquipmentCord
Horizontal cable
EquipmentCord
connector connector
Switch
PatchCord
Extralength
NV
N
NN N
N
42
• Cabling, UTP & screened– Cat6A – Cat6– Cat5e
• Switches– 1000BASE-T– 100BASE-T– 10BASE-T
• NICs– 10GBASE-T
Expected reach per cable type
Cabling SetApplication Class
A B C D E EA
10GPlus 2000m L=260-FX L=185-FX L=111-FX-CY L=102-FX-CY L=102-FX-CY
Cat6Plus 2000m L=260-FX L=185-FX L=111-FX-CY L=102-FX-CY -
Gigaplus 2000m L=250-FX L=170-FX L=105-FX-CY - -
Cable Type Application Class 2 connector 3 connector 4 connector
10GPLUS UTP Class EA 97 96 95
10GPLUS screened Class EA 97 96 89
10GPLUS screened (zone) Class EA 77 76 75
Cat6Plus UTP Class E 100 99 98
Cat6Plus screened Class E 97 96 89
GigaPlus UTP Class D 100 100 99
GigaPlus screened Class D 100 98 96
: F = patchcable IL factor , X = patch length, C= CP cable IL factor, Y = CP length
Cat6A UTP Single channel
+ noise on adjacent cables
Cat6 screened Single channel
+ noise on adjacent cables
ReachCable type 97m0m
+ noise on adjacent cables NV
N
NN N
N
Cat6A screened Single channel V
14m
Cat6 UTP Single channel – 95m
14m 55m 95m
Reach with 10GBASE-T technology
EMC assessment
EN50174-2
EMC environments:
• Transmitters (TV, radio, base stations) <1km E3
• Flourescent lights <0.5m E2
• Flourescent lights >0.5m E1
• Thermostatic switches >0.5m E1
WHO: 10V/m under power lines
Source: Richard Box
MICE levelsBS EN 50173-1:2007 Annex G
• Electromagnetic criteria
– ESD 4kV & 8kV (air)– Radiated RF 3V/m - 10V/m– Conducted RF 3V - 10V– EFT 500V - 1kV– Surge 500V - 2kV– Magnetic field 1A/m - 30A/m
Radiated Emmission - E field30MHz to 1000MHz EN55022: 1998 & A1 & A2
Radiated Emmission - E field
Conducted RF Immunity
150KHz to 80MHz EN 61000-4-6: 1996 & A1
Electrical Fast Transients
• EN 61000-4-4• Noise applied to the signal
cable• 15ms bursts at 5khz• Voltage levels applied:
– 0.5kV (E1)– 1kV (E2 & E3)– 2kV
• 10GbE on all cabling types:– No effect noted
EMC summary
Office environment, E110GBASE-T on the Cable Type
Cat5 U/UTP
Cat6 U/UTP
Cat6AU/UTP
Cat6AU/FTP
Cat6AS/FTP
Radiated Emmissions EN 55022 (30MHz-1GHz) pass pass pass pass pass
Immunity to radiated RF fieldEN61000-4-3 (80MHz-1GHz) stopped stopped stopped pass pass
Immunity to conducted disturbance EN61000-4-6 (150KHz – 80MHz) stopped stopped stopped pass pass
Immunity to fast transientsEN61000-4-4 (noise on signal cable) pass pass pass pass pass
Immunity to fast transientsEN61000-4-4 (noise on power cable) pass pass pass pass pass
EMC
• Emmission requirements - 10GBASE-T devices with UTP and screened cabling passed the requirements of the EMCD
• Immunity requirements - screened cabling is required to assure that the 10GBASE-T devices tested can operate in the general office environment. MICE level E1.
Environmental Noise Survey
• Rural Areas• City Centres• Town Centres• General Offices• Data Centres
• Portable Spectrum Analyser
• Active Receive antenna– Open Area Test Site
Worst measured EM noise
Electromagnetic Field Strengths - Town Centre
-60
-50
-40
-30
-20
-10
0
10
20
30
40
50
60
70
0 100 200 300 400 500
Frequency (MHz)
Fie
ld S
tre
ng
th (
dB
mV
/m) Magnitude
Noisefloor
69.5dBmV/m=3V/m
60dBmV/m=1V/m
30dBmV/m=0.03V/m
E1
EM noise near Transmit Mast referenced to the PSD of 10GBASE-T (Noise level de-rated for Coupling Attenuation of UTP cabling)
-180
-160
-140
-120
-100
-80
-60
0 50 100 150 200 250 300 350 400 450 500
Frequency (MHz)
PS
D (
dB
m/H
z)
PSD upper PSD of 10GBASE-T Attenuated 10G PSD
Noise > signal at
high freq.
Can EMI interfere with 10GBASE-T on UTP?
Worst case noise (EMI) coupled onto UTP cables
Received signal power
10GBASE-T
• 10GBASE-T devices are on the market
• Alien noise– ClassEA screened and UTP cabling support full channel lengths– Class E screened cabling supports full channel lengths
• EMC (cabling is exempt from the EMCD)– Screened cabling - 10GBASE-T operated in MICE level E1 environments– UTP cabling - 10GBASE-T is disturbed by the maximum E1 level (3V/m)
In electro-magnetically noisy environments screened cabling supports 10GBASE-T
Brand-Rex Copyright 2009 32
Standardisation – Data Centre cabling
• ANSI/EIA/TIA 942 Cat6 & OM2– Rev 1 (draft) Cat6A & OM3
• CENELEC EN 50173-5 Class E & OM3– Ammendment 1 (draft) Class EA & OM3
• ISO/IEC 24764 (draft) Class EA & OM3
9/3/2009
TIA 942Telecommunications Infrastructure Standard for Data Centres
• Specifies the minimum requirements for the telecommunications infrastructure of data centres and computer rooms.
• Introduces telecommunications design issues early into the construction cycle
• Enables the long term planning of the data centre to accommodate change and growth and support future applications
Standardisation - TIA
‘Should’ and ‘Shall’Shall:• be located away from sources of electro-magnetic interference• be sized to meet the requirements of the equipment, including
clearances…..and future needs• Minimum room height 2.6m• Minimum clearance from sprinklers 460mm• Floors, walls & ceilings light coloured & sealed against dust• Antistatic floors• Minimum 500 lux lighting• Cabinets have a min width of 1m and door heigth of 1.3m• Min distributed floor loading capacity 7.2kPa• Provide continous 24/365 HVAC • 20 to 25degC, 40 to 55%RH, 21degC max dew point, max temp change 5degC/hr• Racks & Cabinets arranged in ‘hot’ and ‘cold’ isles• Monitor Temperature in the cold isles• Etc., etc …………..
Standardisation - TIA
Tiering – Generic CablingTier I Tier II Tier III Tier IV
Cabling, Racks & Cabs to TIA specs Dual access provider (maintenance separated by 20m )
X
Secondary distribution area X X X optional
Dual power supply to switches X redundant switches X X redundant backbone pathways X X redundant horizontal cabling X X X optional
Rack, Panel, Cable, Cord, Identification scheme per TIA 942
Patchcords labelled both ends X
Ref: TIA 942
Standardisation - TIA
Product Solution Sets
Brand-Rex Copyright 2009
Product Set Voice GigaPlus Cat6Plus 10GPlus UmediaPlus
UmediaPlus
FibrePlus
Application Class CCat 3
Class DCat 5e
Class ECat 6
Class EACat 6A
Class FCat 7
Class FACat7A
Optical class
>10Gbe 10GbE 1GbE Voice PoE & PoEP * AnalogueBroadcast
* PoE only
Source: Cambridge Online
Source: Anon
The High Speed Environment
Fibre X connect
1/2U
newMDC cables
Cu X connectZone
cablesMT Connect
IIMSSmartpatch
Cat6PLUS
10GPLUS
FibrePLUS
Blolite
Cabling Solutions
‘V12’ Angled Technology Panels
Secure, High Density, Cu Cabling Cabinet
• Up to 864 ports per cabinet
• Vertical management, pathways and space for 432 patchcords
• Configuration options:• Stand alone
• 45U 900x500mm Cabinet • Back to Back
• 900x1000mm• Side to Side
864 Cu ports per cabinet
Cu X-connect solutionsCross-connect solutions
Small DC model
Basics:• 1000sq ft• 2ft high plenum space• 3kw server racks• 10,000CFM CRACs • 25% aperture tiles • 100 cables per rack
Simulation outputs include:• Rack & room temperatures • Press. and vol. flow above &
below the floor• Flow rates & estimated cooling
capacity per tile
Effects of cabling on cooling air flow rates through tiles
Simulation air flow rates
• No data cables underfloor– 382 to 431 CFM
• 5.5mm OD cables on trays– 381 to 437 CFM
• 5.5mm OD cables on the floor– 380 to 436 CFM
• 7.2mm OD cables on trays– 391 to 424 CFM
• 8.5mm OD cables on trays– 361 to 392 CFM
10% improvement in cooling air flow rates through tiles
• Reduced space taken in pathways– AC6 UTP 8.3mm 50 links– AC6 DCZ 5.4mm 118 links
• Reduced weight in trays – AC6 UTP 79 kg/km– AC6 DCZ 33 kg/km
• Standards Conformant• Xconn – LDP – EO 77 m
Zone Cable
UTP8.3
FFTP7.2
Zone5.4
Space saving ‘Zone’ cabling
½ U height panels
Features: – Category 6 performance– ½ U height 24 port panels
Benefits:• to the installer:
– logical and quick installation– Standard termination methods
• to the end user:– Reduces height in rack– Reduces depth in rack– Reduces blockage of exhaust air
Description Catalogue Number
Cat6 ½ U Unshielded Panel Black C6CPNLU240K2H
Cat6 ½ U Unshielded Panel Grey C6CPNLU240K8H
Cat6 ½ U Shielded Panel Black C6CPNLF240K2H
Cat6 ½ U Shielded Panel Grey C6CPNLF240K8H
• Micro Distribution Cables (12f & 24f)
• Dual Loose Tube (24f)
• Multi-Loose tube (48f)
Diameter over the buffered fibre: 600 um
12f Cable Diameter :24f Cable OD :
4.0 mm5.8 mm
Tube Diameter: 2.5 mm
Cable Diameter: 9.4 mm
Cable Weight: 84 kg/km
Tube Diameter: 2.5 mm
Cable Diameter: 7.2 x 8.1mm
Cable Weight: 60 kg/km
Fibre Optic Cables
• Pro’s–Modularity–Faster installation–Quicker repair time–Shorter maintenance time–Less downtime–MT ferrule based
• 12 or 24f
• Con’s–Higher initial cost–MT ferrule based
• 0.36dB (LED launch)• 12 or 24f
MT ConnectModular FO system - MT Connect
• Optimised solution for main distributor locations
– Small footprint– 500x900mm
– 1824 ports per cabinet
– 3648 ports in 1m x 900mm
• Cable Management
– Large patching field– 70mm bend management
• Installation friendly
– Front of rack working– Logical routing
High Density FO cross-connects
Data centre – FO solution Installation
6 cabinets = 6x1824 fibre ports or 6x864 Cu ports or a mix
Higher Speed, Future Proof, Cabling Networks
• Demand for 10Gbps speeds is increasing – Data Centres, HPC & Corporate Backbones
• 10GbE technologies are established in the market– 10GBASE-T devices are now available
• Selection of the right infrastructure solution to run, or future proof for, higher speeds is critical– Up to 100m - Class EA cabling– In building - OM3 or OM4– Between buildings - SMF
1Gbps → 10Gbps → 40Gbps → 100Gbps → 400Gbps → TeraBit?
Brand-Rex Copyright 2009 51
Thankyou for listening
Questions ?
9/3/2009