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[email protected] Reduncancy Architecture. High Availability Challenges. Guarantee high availability of the service and at the same time Short response times for handling of calls/transactions. Carrier Grade Platform. Availability Load sharing over cluster elements, not only failover

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[email protected] Reduncancy Architecture

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[email protected] Reduncancy Architecture


High Availability Challenges

  • Guarantee high availability of the service and at the same time

  • Short response times for handling of calls/transactions


Carrier Grade Platform

Availability

  • Load sharing over cluster elements, not only failover

  • No single point of failure (TSP HW/SW, OEM SW, applications)

  • Recovery, auditing, alarming

  • Online and Rolling Software Update

  • Distance between cluster elements up to 2 km

  • Geographical redundancy with rescue service (optional)

  • Service management with same availability as call processing

Scalability (Performance and Capacity)

  • Parallel usage of both cluster elements

  • Modular expandability (nodes, CPU’s)

  • SW scalability for all transaction types, SS7 and IP

  • Sophisticated caching mechanisms to assure best-in-class setup times

Reliability

  • Usage of proven components of Solaris, Oracle, Ulticom

  • Cluster-wide data replication, e.g. accounts, contexts

  • Single system image view onto cluster

  • Install Server for installation/upgrade


redundant Cluster links

redundant IP links

redundant SS7 links

High Availability (Functional view)

Service Managment GUI

Customer Care System

IP

Network

SEP

oracle

DB mirror

oracle

DB

account

DB mirror

account

DB

CE2

CE1

Cluster 1

Cluster 2

MSP

SS7

Network

IP

Network

SSG

SSP

GSN

Appl. Server

SMSC

MMSC


High Availability (Box view)


High AvailabilityPrevention and Repair Strategies (1)


High AvailabilityPrevention and Repair Strategies (2)


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