AFCEA InterOperability Revisited Jun10 Presentation 7 STM-1 INTERFACE MICROWAVE LINK TYPICALLY X.21,...
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Transcript of AFCEA InterOperability Revisited Jun10 Presentation 7 STM-1 INTERFACE MICROWAVE LINK TYPICALLY X.21,...
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Multi-service Resilient Fibre Networking via CWDMa North Sea case study
Richard KirbyManaging Director, Metrodata Ltd
Communications EquipmentInterconnectivity and Interoperability
www.metrodata.co.uk
www.metrodata.co.uk
Agenda
§ Who are we and what do we do?
§ Military applications & typical interfacing issues..
§ Typical connectivity examples
§ More advanced interfacing• Fibre Multiplexed Solution case-study
§ Wrap-up
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www.metrodata.co.uk
Who we are and what we do!
§ Metrodata Ltd, UK Datacoms Equipment Manufacturer est. 1989• Interface and Transport Specialists• SDH/PDH, Serial, ATM, Fibre & Ethernet• Terrestrial, Microwave, Satellite applications
§ Clients worldwide include:• Telecoms Service Providers• Public Sector (Central & Local Govt., Defence, Health, Edu)• Corporate Enterprises
§ Integration Division, 'Metrodata Network Solutions'• Integrated customer solutions including Metrodata and 3rd Party
Products & Services• "Solving Communications Problems"
www.metrodata.co.uk
Military applications
§ Military sector customers:• USAF (e.g. Eglin AFB), US Navy / SPAWAR & US Army• UK MOD (various deployments)• Other NATO forces, e.g. RNLA TITAAN
§ Typical interfacing requirements / issues:• Service interface conversion (e.g. Telco circuit interface to eqpt.)• 'Copper-fibre' interface conversion for service extension• Interface matching conversion (typically eqpt. to eqpt. often seen
with crypto deployments)• Multi-service multiplexing over fibre (i.e. high bandwidth availability)• Multi-service convergence & multiplexing over restricted speed
links (i.e. typically Radio or Satcom)• Backhaul circuit connectivity, Satcom to Terrestrial
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www.metrodata.co.uk
Typical Terrestrial & µ-wave Solutions
SERVICE INTERFACE CONVERSION
Carrier 2Mbps Leased Line (E1) connectionto Serial Router port
TYPICALLY E1, E2, E3OR STM-1 INTERFACE
MICROWAVE LINK
TYPICALLYX.21, V.35 or HSSI
CONNECTION
Line-of-sight (µ-wave) equipment often presents withSDH/PDH interface - here interfaced to Serial Routerport (typ. up to HSSI speeds)
SD
Ci sco 17 20
BR IS /T
C ONS OLE
AU XW IC 0 OK
OKB2B1
W IC 1 OK
DSUCPU
LNK1 00FD X
S3
L OOP
LP
FIBRE EXTENSION
Fibre extension of Voice (eg ISDN-30 trunk)or Data (Serial, 10/100 or Gigabit E'Net)
www.metrodata.co.uk
Multiplexing & LAN Extension Solutions
SDH STM-1 LINK
OR DARK FIBRE
SDH STM-1 LINK
OR DARK FIBRE
VOICE & DATA MULTIPLEXING
Multiple E1 &/or E3 and Multiple Ethernetlinks over fibre
ETHERNET LANEXTENSION
Ethernet (Layer 2) extension across variety ofof link media. Here showing Terrestrial 2Mbps
'Leased Line' circuit, alternatively Serial(various i/f types), E3/DS3, STM-1/OC3 etc..
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www.metrodata.co.uk
Data Links over Satellite
Overcome terrestrial limitations and optimisedata services over satellite
www.metrodata.co.uk
Serial Link Cryptos
HSSI DTE - LVDS
Ethernet - LVDS - HSSI
Note: Auto crypto-resync has proven to be a useful facility!
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www.metrodata.co.uk
Eglin AFB: Converged Services over Satellite
Central Location Remote Site 2Mobile truck
Remote Site 1(sea-going barge!)
Metrodata AP8000Access Processor
HSSI ATM UNI(x1 or x2)
QUAD T1 - CE
ATM STM-1 UNI
DS3 UNI
LAN (10/100) - CE
TYPICAL AP CONFIGURATION
INPUTS: Voice, Video,Telemetry Data, IP
SERIAL SAT MODEMINTERFACES
AP8000
AP8000
HSSI - CE
USAF Eglin AFB:Voice, Video, Telemetry & IP Data Convergence via ATM transportfor multi-site Communications
( with onward multi -castlinks throughout Eglin
AFB network )
OC-3 ATM UNI (Fibre link used as satellite eliminatorfor link testing between deployments)
www.metrodata.co.uk
Global Hawk Comms back-haul
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Satellite Backhaul for NASA LANDSAT
§ Backhaul of customer application from Earth Station over Terrestrial Infrastructure to Data Centre
§ This Solution Quadrupled the Resolution of Satellite Pictures
www.metrodata.co.uk
Example: multi-protocol fibre network
§ Network required to converge Voice, Data and Alarm/Control signalling, via sub-sea fibre, between 3 North Sea Oil platforms
• Key network aspects:» Distance: platforms up to ~ 50km apart» Versatility: Voice and multiple data types over the same network» Resilience: Critical aspect, resilience to multiple network/device failures» On-site deployment: Small window, limited and (relatively) unskilled resources» Low cost!
§ Payload profile:• Data: 10/100 & Gigabit Ethernet• Voice: TDM PBX inter-connection via 2Mbps voice trunks• Alarm/Control: Proprietary (but relatively low speed) Serial data
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www.metrodata.co.uk
1. Converged Ethernet/IP approach
CONSOLESummit X450a-24tDC
TM S h a r e d P o r t s
STACK NO.
S o l i d O N = L i n k
FANPSU-I
PSU-E
M G M T 1 0 G
Stack
1
21
2
Blinking = Activity
CONSOLESummit X450a-24tDC
TM S h a r e d P o r t s
STACK NO.
S o l i d O N = L i n k
FANPSU-I
PSU-E
M G M T 1 0 G
Stack
1
21
2
Blinking = Activity
CONSOLESummit X450a-24tDC
TM S h a r e d P o r t s
STACK NO.
S o l i d O N = L i n k
FANPSU-I
PSU-E
M G M T 1 0 G
Stack
1
21
2
Blinking = Activity
CONSOLESummit X450a-24tDC
TM S h a r e d P o r t s
STACK NO.
S o l i d O N = L i n k
FANPSU-I
PSU-E
M G M T 1 0 G
Stack
1
21
2
Blinking = Activity
CONSOLESummit X450a-24tDC
TM S h a r e d P o r t s
STACK NO.
S o l i d O N = L i n k
FANPSU-I
PSU-E
M G M T 1 0 G
Stack
1
21
2
Blinking = Activity
CONSOLESummit X450a-24tDC
TM S h a r e d P o r t s
STACK NO.
S o l i d O N = L i n k
FANPSU-I
PSU-E
M G M T 1 0 G
Stack
1
21
2
Blinking = Activity
Resilient Fibre Ring using RSTPor other protocols for Ethernet
'loop avoidance'. These may take timeto 're-converge' in the event of a failure
Serial-over-IP(Control)
TDM-over-IP(Voice)
Native Ethernet(Data)
Complex QoS configuration(if supported!) to ensure effective
prioritisation of Voice & Alarm/Control trafficvs 'general' IT Data
Specialised solutions for TDMoIP and/or SoIP are not readily available
with 'redundant/dual-homing'connection to Ethernet, so either dual
source connections are required or this represents a single point of failure
Resilient Ethernet/IP networks involving convergenceof multiple communications protocols require
advanced networking skills for support staff and addressingschema can be complex
Serial-over-IP and TDM-over-IP converters are both expensiveand complex to configure. They may suffer 'clock recovery'
issues in transmission of synchronised Voice data acrossnon-clocked 'best effort' transmission media (i.e. Ethernet!)
Off the shelf Serial -over-IP products didn't support the obscure alarm/control system serial interface, and
could introduce delays or jitter which may have de-stabilised the system.
www.metrodata.co.uk
2. Optical Multiplexing approach
§ Passive 'CWDM' (Coarse Wavelength Division Multiplexed) solution offered the following:
• Low cost» Using well established, low cost fibre interface converters
• Low complexity» Config. & installation more akin to 'plumbing' than to complex data networking
• High reliability & resilience» All systems 'dual homed' onto two separate fibre rings» Optical multiplexers are un-powered devices, minimal possibility of failure» Resultant network offers resilience to double fibre and/or equipment failures» Network could be fully deployed on a single Tx/Rx fibre pair between each
location (although in fact two pairs used to give fully redundant resilience)
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www.metrodata.co.uk
Resilient (dual-homed) Service Interfacing
Serial (max 8Mbps) to dual SFP fibreRS-232/X.21/V.35/EIA-530
10/100/1000 Ethernetto dual SFP fibre
ISDN-30 (E1) to dual SFP fibre
FIMO -2100
FCM9000
FC1500
FC-GES
SFP to dual SFP fibre(used typically for MMF to SMFmatching, for both Ethernet and
'generic' signalling incl. Alarm/Control)
Emux
Multi E1 (4, 8, 16 ports) to dual SFP fibre
Resilient (dual-path)fibre routes to other
end of link
PassiveCWDM Hub
PassiveCWDM Hub
And more! (TV, SAN etc. etc.)
Serial (max 8Mbps) to dual SFP fibreRS-232/X.21/V.35/EIA-530
10/100/1000 Ethernetto dual SFP fibre
ISDN-30 (E1) to dual SFP fibre
FIMO -2100
FCM9000
FC1500
FC-GES
SFP to dual SFP fibre(used typically for MMF to SMFmatching, for both Ethernet and
'generic' signalling incl. Alarm/Control)
Emux
Multi E1 (4, 8, 16 ports) to dual SFP fibre
Resilient (dual-path)fibre routes to other
end of link
PassiveCWDM Hub
PassiveCWDM Hub
And more! (TV, SAN etc. etc.)
Serial
Data
Voice
IndustrialControl
www.metrodata.co.uk
Resilient Ring Topology
Site A
Site B
Site C
Required Communications:Serial (Alarm/Control): A <> CEthernet (Data): A <> BVoice (TDM): B <> C
Serial i/f
Serial i/f
E'net i/f
E'net i/f
Voice Trunk i/f(E1 / ISDN-30)
Voice Trunk i/f(E1 / ISDN-30)
Link 1
Link 2
Link 3
All Services resilient to failure ofany of Link 1, 2 or 3 or to failureof any CWDM Mux/Demux unit
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www.metrodata.co.uk
6U
19"
Packaged fibre communications solution offering fully resilient (dual fibre routed) connectivityfor any combination of:
• Up to 16 x Copper to (MM or) SM Fibre 10/100/1000Mbps Ethernet • Up to 16 x MM Fibre 10/100/1000Mbps Ethernet to SM Fibre 10/100/1000Mbps Ethernet• Up to 13 x Serial (RS-232/X.21/V.35/EIA530) to (MM or) SM Fibre (**possibility to increase**?)• Up to 16 x MM Non-Ethernet Fibre Signalling (e.g. Alarm/SCADA apps etc.) to SM Fibre• Up to 13 x E1 (a.k.a. ISDN-30/ QSIG etc.) Copper to SM Fibre
Typical config:2 x E1 (i.e. up to 60 Voice circuits)4 x 100Mbps or Gigabit E'net2 x Non-E'net Media Conversion4 x Serial1 x spare connection
P2P dual-path flexible comms package
www.metrodata.co.uk
Wrap up
§ Whilst today's commercial communications infrastructure marches inexorably to ever higher speeds, military deployments demand a more careful approach:
• Compatibility across multiple generations of equipment & infrastructure
• Incorporation of a multitude of equipment, often with 'specialised' interface requirements
• Rapid and simple deployment in theatre
§ Metrodata, and Metrodata Network Solutions, can help!• Long-established company of high expertise in interface solutions• Metrodata equipment is designed and manufactured in the UK• COTS, KOTS(!) and fully bespoke developments undertaken