Technik Der Netze 9

Presentation Title

Kontron Communications

Technik der Netze – Seminar 2006 [email protected] Seite 1

Die Technik der NetzeSeminar

Teil 9: Baukasten (2)

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Seminarprogramm

(1) Einführung – Wir bauen ein Netz(2) Übersicht über TK-Netze(3) Mobilfunk – Was steckt hinter meinem Händi(4) Internet – Das Netz der Netze(5) WiMAX – auch ein mobiles Netz(6) Geht das auch etwas allgemeiner, oder müssen wir jede

Implementierung kennen? – Netzarchitekuren (7) Sicherheit im Netz – Verfügbarkeit, Integrität, Vertraulichkeit(8) Kontron - Baukasten Teil 1

Beispiel: VoIP Call Server; Media Server: Netzdesign, Systemdesign; ATCA Baukasten; TCA Baukasten;

(9) Kontron - Baukasten Teil 2Anwendungen; Anwendungsprofile; Musterkonfigurationen; Validierungstools; System Validation Kits für ATCA und TCA

(10) Die Zukunft der Netze

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Ein Blick zurückNetzdesign und

Systemdesign für Call Server und Media Server

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Gymnastik: Fast-Food Restaurant

Selbstbedienung & Kasse

Restaurant mit Platz für 200 Gäste

Mittlere Aufenthaltsdauer pro Gast: 15 Minuten

Frage: Wie viele Gäste pro Stunde (bzw. pro Minute) muss die Kasse bedienen können?

Eingang Ausgang

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Session Control and Media Processing

IP Network(Carrier)

PSTN

Call Server/Gateway Controller

Media Server

PLMN

Trunking GW

Trunking GW/Signalling Gateway

Call Server• control call sessions (SIP/H.323 call control)• control Media Server & Gateways

Media Server• announcements• IVR• conferences• voice mail• customised tunes• streaming media• trunking gateways

Life TV/local TV

Video/AudioOn demand

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Controller Model

Input buffer Output buffer

Processor

CachePhysical memory (volatile)

Disks (persistent)

Data:Data base,File system,OS specific

Load,Store,Paging

control messages,traffic

control messages,traffic

30 Mbps

13 Gbps30 Mbps

13 Gbps

500 MB

160 GB

(1600 GB)

1 Mio Subscribers

1000 tps (80% load)

100 s per transaction

500 MB

(160 GB)

Call Processor (e.g. SIP Server): transaction profile (e.g. 30 kbit SIP messages per call transaction)

Media Processor (e.g. Streaming Server/Proxy): traffic profile (e.g. 128 kbit/s of media streams of 100 seconds per transaction)

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AnwendungenMusteranwendungen,

Netzdesign

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Marktsegmente für VoIP and Medien

Wireline

Enterprise

IP Centrex

VoIP Trunking Gateways

IPTV

NGN Media Servers

Wireless

Wireless Enterprise

WiMAX

2G/3G Media Servers

Fixed-Mobile Convergence

Media Server Capabilities

Conferences

Announcements

Voice Mail and Voice Recording

Media Streaming

IVR/Voice Portals/VXML

ACD and Contact Server

Unified Messaging

Transcoding

DTMF/FAX processing

SIP Control, MGCP/Megaco/H.323IVR: Interactive Voice Response (Ansagemenüs mit Ziffertasten)

VXML: Voice XML (Sprachführung und Spracherkennung per Web-Seite)

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Enterprise and Wireless Enterprise

PBX

PSTN

IP Network

TAMedia Server• IP phones• voice mail• unified messaging• conferences• call center• transcoder• bypass PSTN to connect to other PBXs

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IP Centrex

PBX

IP Network(Centrex Operator)

TA

Media Server• trunking gateway• SIP control• announcements• conferences• voice mail• unified messaging• transcoder

SMESOHO SME

PSTN

Call Server

Media Server

Media GWIP Network

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NGN and VoIP Trunking

IP Network(Carrier)

PSTN

Call Server

Media Server

PLMN

Trunking GW

Trunking GW

Media Server• trunking gateway• SIP control• conferences• voice mail• announcements• streaming media

Trunking Gateway• SIP control• H.323 control• MGCP/Megaco• transcoding

Siehe Teil 8:Call Server & Media Server

Siehe Teil 8:Call Server & Media Server

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WiMAX

WiMAX RAN(IP Network)

BSAccess

Controller

Core Network(IP Network)

Internet

PSTN/PLMN

Trunking GWAAA

Call Server

Content Server

Media Server

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2G/3G Media Servers

2G RAN

BTSBSC

3G RAN

Node B RNC

Core Network(IP Network)

Call Server/MSC Server

Media Server

PSTN/PLMN

Trunking GW

Internet

HLR

SGSN

GGSN

Media Server• SIP/Megaco ctrl.• announcements• IVR• conferences• transcoding

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IP-TV

RAN(3G/WiMAX)

BSBSC/AC

Wireline Access Network(DSL/CaTV)

DSLAM/NAS

AAA

“triple play”

Life TV/local TV

On demand

Media Controller

Media Server

Media Server• Media Streaming• interactive voice support• conferences• IVR/VXML

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Fixed-Mobile Convergence

RAN(2G/3G)

Wireline Access Network

DSLAM/NAS

AAA/HSS

IMSS-CSCF

Media Server

BTS/Node BBSC/RNC/

SGSNVisited Network

Call Server/Application Server/MGCF

IMSP-CSCF

Media Server• SIP/Megaco ctrl.• announcements• IVR• conferences• transcoding• Lawful interception

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SystemdesignAnwendungsprofile,Systemarchitektur,

Musterkonfigurationen mit ATCA und TCA

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How to design ATCA systems?

Each network element can be profiled in terms of Subscribers Transactions Traffic Interfaces

Sample configurations correspond to the application profile

Same building blocks for the same functions Same patterns for the same profiles:

Bundles Sub-systems Pre-integrated systems

Chose system components from building blocks

Application Profiles


Building BlocksBuilding Blocks

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Application Profiles - Summary

Call Servers/Gateway Controllers/IMS-CSCF HLR/HSS Media Gateway/Trunking GW Media Server Signalling Gateway Radio Network Controller (RNC)

Line Termination (DSLAM) WiMAX Access Controller (WAC) Base Station (BTS, Node B) IP-PBX Media Server Military (Radar, image processing, communications) Medical Industrial

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Dimensionierung – Einige Faustregeln Subscribers: for orientation; Transactions: according to traditional design

PSTN: 10% of subscribers are simultanously active (0,1 Erlang); one transaction (call) takes about 100 seconds -> 1 mtps per subscriber

PLMN: according to traffic models, the most significant transaction are location updates of typically 4 updates per busy hour -> 1 mtps per subscriber (with 1h = 4000 seconds)

Traffic: Signalling traffic (control plane): tps x subscribers x message lenght Data traffic (user plane): TDM interface x subscribers; for IP networks:

service dependent or design guideline (e.g. 50 kbits/s per subscriber) DSP: 60 voice ports per DSP; 8 DSPs per AMC -> 500 voice ports per

AMC Data Base:

subscriber profiles and associated service profiles and state information

to be handled in physical memory follows number of subscribers with 1 - 10 kBytes per subscriber

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Sample Profiles

HLR/HSS 10 Mio subscribers 10.000 tps 100 Mbits/s throughput 30 GBytes of subscriber

profiles & state info

Media Server 50.000 subscribers 50 tps (200.000 BHCA) 13 Gbits/s of traffic

Media/Trunking GW Transcoding and media

processing 12.000 subscribers 12 tps (48.000 BHCA) 800 Mbits/s of traffic

Signaling Gateway 1 Mio subscribers 1000 tps (4 Mio BHCA), 30 Mbits/s control traffic (IP) 6 Mbits/s control traffic (SS7)

Radio Network Controller 5000 channels 50 tps (200.000 BHCA) 3 Mbits/s control traffic 320 Mbits/s user traffic

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Sample Profiles


0

2000

4000

6000

8000

10000

12000

14000

Call Server HLR/HSS MGW M-Server Sign-GW RNC

tps

Mbps

Each System is either Transaction Profile or Traffic Profile Max Traffic for Transaction Profiles: 100 Mbits/s Traffic for traffic profiles: 300 Mbits/s to 13 Gbits/s (Media Server) Data bases <10 GBytes, except for HLR/HSS (30 GBytes) and

Media Servers (Media Proxy, Media Storage > 1000 GBytes)

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HLR/HSS (w/o CS7 signaling)

Storage Subsystem

10 Mio subscribers 10.000 tps 100 Mbits/s throughput 30 GBytes of subscriber profiles & state info (in DB Server RAM

and on HDD)

N+1 Redundanz

N+1 Redundanz

ProcessorSubsystem

RedundantDB Server

Network

Switch

Processor

Fabric (GbE)

Storage

4321 8765

Fabric (GbE)

N1 2 3 4 …

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Redundante Datenbanken

F1

F2

F3

F4

F1

(F4)

F2

(F1)

F3

(F2)

F4

(F3)

Data BaseData Base Nodes

F1

(F4)

F2

(F1)F3

(F2)

F4

(F3)

Data Base

Servers

N1 N2 N3 N4

Verteilte Datenbank Fragmente definieren (F1, F2, …) Fragmente den Data Base Nodes

mit Spiegelfragmenten zuordnen (werden im Arbeitsspeicher synchronisiert)

DB Nodes (logische) auf Data Base Server (physikalisch) verteilen

M+1 Redundanz for DB ServersServer 1 Server 2

N1 N2

N3 N4

Fragments

Allocate Nodes to Servers

Siehe Teil 7: Redundanz

Siehe Teil 7: Redundanz

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Transaction profiles – HSS

HLR/HSS (ohne SS7 Signalisierung)

Storage & Processor

Subsystems

Space for main controller

(PrAMC & HDD)

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HLR/HSS (w/o CS7 signaling)M

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10 Mio subscribers 10.000 tps 100 Mbits/s throughput 30 GBytes of subscriber profiles & state info (in DB Server RAM

and on HDD)

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HLR/HSS - TCA Profile

Implications on fabric and MCH 1 GbE as basic fabric is sufficient (max. 100 Mbps throughput) Dual star to 12 slots for each MCH (as in TCA spec) 1GbE uplink on each MCH to interconnect each shelf 1 GbE uplink for Network interface on tier 1 MCH No need for PCIe or other fabric on MCH Special backplane design for storage subsystem

Point-to-point connections on backplane for SAS/SATA disks in redundant storage sub-system (storage and processor)

Does not need to pass MCH

Basic MCH is sufficient

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Media Server – N+1 Redundancy

50.000 subscribers (processing „ports“) 50 tps (200.000 BHCA) 13 Gbits/s of traffic storage capacity 1000 GB and more option: DSPs

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Media Server sample configuration

Uplinks (10GbE)

ATCA configuration: 5 slot system Network I/F: 4x 10GbE on

hub switches CPU power: 3 ATCA CPU

boards with 2x SAS disks Spare capacity: 4 AMC

slots on hub switches Options: DSP for signal

processing Options: STM-1 or E1/T1

Interface AMCs for Signalling or Trunking GW

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Media Server – N+1 RedundancyM

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50.000 subscribers (processing „ports“) 50 tps (200.000 BHCA) 13 Gbits/s of traffic storage capacity 1000 GB and more option: DSPs

ProcessorSubsystem

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StorageSubsystem

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Media Server - TCA Profile

Implications on fabric and MCH 2x 10 GbE uplink capacity for network interconnection (1x 10 GbE on

each MCH of tier 1) 2x 10 GbE uplink capacity to interconnect both tiers (1x 10 GbE on each

MCH tier 1 and tier 2) 1 GbE as basic fabric is NOT sufficient (total 13 Gbps throughput to be

distributed to 8-10 processors) Use 2x 1GbE on AMC ports 0 and 2 from both MCH Use extra GbE fabric in dual star to 12 slots, e.g. on AMC port 8 and port 9 ports 8-11 avoid conflicts with other fabrics on AMC ports 4-11 such as

PCIe No need for PCIe or other fabric on MCH Special backplane design for storage subsystem

Point-to-point connections for SAS/SATA disks in redundant storage sub-system (storage and processor)


Basic MCH plus GbE fabric for AMC ports 8-11

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Signaling Gateway

1 Mio subscribers 1000 tps (4 Mio BHCA), 30 Mbits/s control traffic (IP) 6 Mbits/s control traffic (SS7)

RAID

IP Network(NGN)

Switch

TrafficProcessor

Fabric (GbE)

1 2 3 4

TDM Network (SS7)

I/OE1/T1

I/OE1/T1

RAID CallProcessor & Main ctrl.

RAID

Fabric (GbE)

Uplinks

Call ProcessorSubsystem

Traffic ProcessorSubsystem

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Transaction Profiles – Signalling Gateway

Signalling Gateway

Signalling Gateway: transactions

1 Mio subscribers (controlled by Call Server/Gateway Controller)

1000 tps (4 Mio BHCA), 30 Mbits/s throughput of

control traffic 6 Mbits/s of TDM control traffic

(trunks with CS7)

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Signaling GatewayM

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Signaling Gateway - TCA Profile

Implications on fabric and MCH 1 GbE uplink capacity for network uplink (NGN) on tier 1 MCHs 1 GbE uplink on each MCH to interconnect both tiers Uplink for TDM traffic (SS7) over E1 interface AMCs Dual star to 12 slots for each MCH sufficient (AMC ports 0 and 1

as in TCA spec) No need for PCIe or other fabric on MCH (multi processor

operation for traffic processors not feasible with PCIe) Special backplane design for storage subsystem




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Radio Network Controller

5000 channels 50 tps (200.000 BHCA) 3 Mbits/s control traffic 320 Mbits/s user traffic Option: DSPs

IP Network(SGSN)

Switch

TrafficProcessor

Fabric (GbE)

1 2

TDM Network (2G/3G BS)

I/OSTM-1

I/OSTM-1

CallProcessor & Main ctrl.

Uplinks

I/OSTM-1

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3 4 5 6

Fabric (GbE)

TrafficProcessorSubsystem


4 65

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Traffic Profiles - RNC


Radio Network Controller (RNC)

50.000 subscribers (5000 channels)

3G base stations (Node B) 2G base stations (BTS)

converted to 3G core net protocols

50 tps (200.000 BHCA) 3 Mbits/s throughput of

control traffic 320 Mbits/s throughput

of user traffic

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MC

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Radio Network Controller - TCA Profile

Implications on fabric and MCH 1 GbE uplink capacity for network uplink (SGSN) on tier 1 MCHs 1 GbE uplink on each MCH to interconnect both tiers Uplink for TDM traffic (2G/3G BS) over STM-1 interface AMCs Dual star to 12 slots for each MCH sufficient (AMC ports 0 and 1

as in TCA spec) No need for PCIe or other fabric on MCH (multi processor

operation for traffic processors not feasible with PCIe) Special backplane design for storage subsystem




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Media Gateway/Trunking Gateway

Media Processing (e.g. VoIP to TDM)

12.000 subscribers 12 tps (48.000 BHCA) 800 Mbits/s of traffic

IP Network(NGN)

Switch

TrafficProcessor

Fabric (GbE)

1 2

TDM Network (trunks)

I/OSTM-1

I/OSTM-1

CallProcessor

& Main ctrl.

Uplinks

I/OSTM-1

3 4 5 6

I/OSTM-1

87

Media Processor (DSP)transcoding

Fabric (GbE)


MediaProcessorSubsystem

CallProcessorSubsystem

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Media Processing (e.g. VoIP to TDM)

12.000 subscribers 12 tps (48.000 BHCA) 800 Mbits/s of traffic


MediaProcessorSubsystem

CallProcessorSubsystem

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Traffic Profiles – Media Gateway


Media Gateway/Trunking GW: traffic

Transcoding and media processing using DSPs:

VoIP to TDM TDM to VoIP

12.000 subscribers 12 tps (48.000

BHCA) 800 Mbit/s of traffic DSP load: 12.000

data streams

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Media/Trunking Gateway - TCA Profile

Implications on fabric and MCH 10 GbE uplink capacity for network uplink (NGN) on each tier 2 MCH 10 GbE uplink on each MCH to interconnect both tiers 10 GbE uplink on each tier 1 MCH to interconnect Call Processor

Subsystem on upper shelf Uplink for TDM traffic (SS7) over STM-1 interface AMCs Dual star to 12 slots for each MCH sufficient (AMC ports 0 and 1 as in

TCA spec); No need for PCIe or other fabric on MCH (multi processor operation for

traffic processors not feasible with PCIe) Special backplane design for storage subsystem




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Systems ValidationTypische Konfigurationen

vorher testen erspart Überraschungen

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Services supporting systems design

Professional Services: Training & tutorials in ATCA systems and systems design Consulting in design & engineering of ATCA/TCA systems Pre-integrated systems to develop customer specific designs Engineering support for customer projects

Systems Validation Conformance, interoperability, performance and benchmarks

Pre-integrated systems Customer designed systems 3rd party systems

Using of Kontron validation tools Validation of AMCs in ATCA and TCA environments Validate configurations of customer projects Set-up OS&HA environment Remote diagnosis and repair

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Kontron R&D Lab

Systems under test

Lab environment for validation and tests

Load & conformance

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ATCA System Validation Kit

Starthilfe für Kundenprojekte, für den internen Gebrauch und

Demos

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Media Server start-up configuration

switch

Internet(e.g DSL& dynamic DNS)

Streaming client

Streaming Clients

KAVEterminal

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Applications Start-up Configuration:

2x AT 8901 Hub with 2x AT 8020 CPU 2x SATA AMC each; Linux installed (Red Hat, CentOS)

Application Demo: Quicktime Streaming Server (H.264, MPEG-4, 3GPP) or other free

streaming server (t.b. defined) Systems Validation & Demo: KAVE tools installed Extensions:

HA platform (Linux HA cluster, ENEA, others to validate) RAID Options: SATA RAID & SAS RAID configuration DSP AMCs for media processing on carrier board (t.b. defined) 1x E1 AMC/STM-1 + 1x AMC CPU + 2x DSP AMC for TDM/VoIP

(Trunking Gateway) on carrier board 1x E1 AMC/STM-1 + 1x CPU AMC for CS7 signalling (Signalling

Gateway) on hub board

1st step1st step

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Extension 1: HA Platform

processor

storage

Switch(Hub)

LAN

System Architecture: HA Platform based on Linux

OS virtualisation (DRDB, Keep Alive), copy of Kontron Web-Server with support of Kontron IT to demonstrate

Switch-over Fail-over

ENEA HA platform & GUI Others to validate

synch state

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Extension 2: RAID Options

LAN

RAID RAID

synch state

Option 1: SATA RAID2 disks per CPU

LAN

RAID RAID

synch state

Option 2: SAS RAID2 disks partitions per CPU(2 ports on SAS disks)

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Extension 3: Legacy Interfaces

System Configuration: 2x AM 4002 CPU 2x Interphase E1/T1 AMC (iSpan

3639) and 2x Interphase STM-1/OC3 AMC

(iSpan 3632) as option Linux & higher layer protocols on

CPU AMC

Applications: Trunking Gateway: VoIP to TDM

and vice versa incl. Voice processing on DSPs

Signalling Gateway: CS7 signalling

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Extension 4: DSP

System Configuration: 1x AT 8400 carrier board 1x AM4002 CPU 3x Surf Rider DSP CPU Linux installed

Application 1: Trunking Gateway VoIP to TDM conversion (DSP) DSP & CPU: RTP & call ctrl. E1/STM1 & CPU: Lower protocol layers

& higher protocol layers To be validated with sample applications

provided by partners (ready to run )

Application 2: Media Transcoding (t.b.d.)

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TCA System Validation Kit

Gleicher Fahrplan wie ATCA, jedoch andere

technische Basis

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IP-PBX start-up configuration

CP

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MC

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Spa

re

Spa

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Spa

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Spa

re

Spa

re

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re

CP

UM

CH

WLANswitch

Internete.g. SipGate,

PBXnet

2 SIP hardphones

public SIP phones

2 SIP WiFi phones in Kontron WLAN

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Extension 1: HA Platform

processor

storage

Switch(MCH)

LAN

System Architecture: HA Platform included based

on OS virtualisation for Linux Option: ENEA Option: other implementations

for the sake of comparisonsynch state

CP

U

MC

H

Spa

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CP

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Extension 2: RAID Versions

CP

U

MC

H

Spa

re

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Spa

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Spa

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CP

UM

CH

LAN

RAID RAID

synch state

Version 1: SATA RAID2 disks per CPU

LAN

RAID RAID

synch state

Version 2: SAS RAID2 disks partitions per CPU(2 ports on SAS disks)

MCH assumed to support meshed configuration to CPUs

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Extension 3: Interfaces

I/O I/O

8x E

1

8x E

1

System Architecture: Line cards for POTS, ISDN phones PSTN PRI Extra I/O ports for mir SIP connectivity and IP based signalling

protocols

CP

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MC

H

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UM

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Das nächste Mal (Teil 10)

Die Zukunft der Netze Ein Blick zurück Öffentliche und private

TK-Netze Anwendungen in Netzen Organisation von Netzen Mikroprozessoren – in

Zukunft alle vernetzt Anwendungen aus der

Industrie, Transport Medizintechnik

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Ende Teil 9

Technik Der Netze 9

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