Tecnologia e desenvolvimento de sistemas

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TIM Brazil
MSC-S Blade Cluster Introduction O&M and operational indicators

Antonio Cartaginezzi / Arcanjo Marin IP, Core & Broadband domain Services Engineer – RLAM Brazil

MSC Server Blade Cluster
Ultra-high capacity, easy scalable expansion and outstanding node availability

Mobile Softswitch Solution R6.1

What is MSC-Server Blade Cluster?
› MSC Server is based on a new HWconcept
– Site infrastructure – Traffic load on MSC-S blades
Signalling Proxy and I/O
Site infrastructure
MSC-S blades for traffic load
Integrated Site infrastructure
MSC-S blade MSC-S blade MSC-S blade MSC-S blade MSC-S blade

Signalling Proxy and I/O

Current MSC-S HW technology
Single external interface (Signalling Proxy) to other network nodes O&M and charging support (I/O)

› Same SWand HW features as in current MSC-S

Site infrastructure shared resources on blades for routing, ethernet switching, network management etc

Fig 1. Conceptual view of MSC Server Blade Cluster cabinet

MSCultraMSC-S on blades for easy scalability and ultra-high capacity on small footprint
Commercial in confidence | © Ericsson AB 2012 | 2012-01-10 | Page 3

Ultra-high capacity Reducingserver opex with up to 45%

Commercial in confidence | © Ericsson AB 2012 | 2012-01-10 | Page 4

HW layout of cabinet 1 and cabinet 2 Supporting IP, TDM and ATM-signaling

Commercial in confidence | © Ericsson AB 2012 | 2012-01-10 | Page 5

MSC-S Blade Cluster HW layout
› Generic Processor boards are utilizing common components of the Integrated Site concept
– Ethernet switches › MainSwitch Boards (SCXB/CMCB) › Extension Switch Board (EXB)

SCXB CMCB SIS1 IPLB-1A

IPLB-1B

– Operation & Maintenance › Site Infrastructure Support (SIS) – IP Line Board (IPLB)

MSC or IPLB-2A

MSC or IPLB-2B

› Standard housing

All cabinet pictures show examples of one possible HW-configuration, the exact board-types and placing of boards in the cabinet are subject to change.Commercial in confidence | © Ericsson AB 2012 | 2012-01-10 | Page 6

M SC SCXB CMCB

EXB

MSC

MSC

EXB

M SC

SIS2

MSC-S Blade Cluster
Components and general concepts
MSC MSC MSC

› MSC Blade: Call control › SPX: Single point of entry for signaling in the Blade Cluster › IPLB: IP Line Board, provides the host IF › I/O system

IS

...

IS IS L2 Infrastructure L2 InfrastructureMXB, EXB-switch MXB, EXB-switch

ISER ISER

B A SPX SPX

B A SPX SPX
MSC Server BC

- APG43 for the whole cluster and SPX - SIS for Integrated Site Infrastructure › SCXB, CMCB, EXB: L2 internal MSC-S BC infrastructure
OSS-RC Commercial in confidence | © Ericsson AB 2012 | 2012-01-10 | Page 7

IP IP

ATM, TDM ATM, TDM

Color Legend

IS components

MSC Blades MSC/TSC BladesRAN, CN CN RAN,

Signaling Proxy APG43 IS O&M

MSC-S Blade Cluster – Resilience
Summary SPX MSC-blades APG43 SIS IPLB EXB SCXB CMCB 2 nodes, each of them 1+1 protected cluster protection (n+1) 2 nodes, each of them 1+1 protected 1+1 protection 1+1 protection 1+1 protection 1+1 protection 1+1 protection

Commercial in confidence | © Ericsson AB 2012 | 2012-01-10 | Page 8

MSC-S BladeCluster concept Key mechanisms
› Three key mechanisms provide the outstanding node availability of the MSC-S Blade Cluster
– Key mechanism 1 › Load distribution – Key mechanism 2 › VLR data replication – Key mechanism 3 › Cluster reconfiguration

› The 1+1 redundancy of all vital components (SPX, SIS, I/O) provides overall server redundancy

Commercial in confidence | © Ericsson AB 2012 |2012-01-10 | Page 9

MSC-S Blade Cluster node view Key mechanisms 1 and 2
Hashing Hashing Hashing Hashing Cluster Primary
Key mechanism 1: Load distribution Distribution of subscriber data to PRIMARY blade via hashing
MSC-S blade MSC-S blade MSC-S blade MSC-S blade Buddy MSC-S blade

Key mechanism 2: VLR data replication

1+1

1+1

1+1

To BUDDY blade

Signaling proxy
SIS I/O...
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