High Availability Overview

WARNING: This article is under construction. The information may not be exact.

This article will describe the TelcoBridges High Availability feature. The hardware and software are design with the following 2 goals in mind:

1. First and foremost, to recover from a system failure to minimize the system down time or instability as much as possible. This is achieve with a fault tolerant and redundancy architecture.
2. Secondly, to keep active calls open after a fail-over whenever possible.

TelcoBridges High Availability

TelcoBridges High Availability should be seen as a collection of high availability and redundancy features instead of one single feature. This means that customer can go as little or as far as they want to create a high availability system.

Definitions

Here is a list of terms used in the description of the high availability features:

• Primary/Secondary
• Master/Slave
• Active/Standby
• Load Sharing
• Switchover
• Switchover Period
• Active Calls
• Transient Calls
• Resynchronization

High Availability Features

Hardware Features

• Power Supply
• Networking
• Clocking
• Tdm Interfaces
• Hosts

TelcoBridges Hardware HA Product Checklist

This checklist provides a quick overview of each TelcoBridges product and their high availability hardware support

Products	Hardware High Availability Features
	Dual Power Supply	Control Network Redundancy	Dual Voip Network	Host Redundancy
TMG800	N	N	Y	N
TMG3200	Y (with 2 U)	N	Y	N
TMG5800	Y	N	Y	N
TMG7800	Y	Y	Y	Y
TMP800	N	N	N	Y
TMP5900	Y	Y	Y	N
TMP6400	Y (with 2 U)	Y	Y	Y
TMP7900	Y	Y	Y	Y
TMS1600	Y	Y	N	Y
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Software Features

• Toolpack Application suites
  • tboamapp
  • toolpack_sys_manager
  • toolpack_engine
  • gateway/user specific application
  • web_server
  • stream_server
• configuration database Database replication Dual Connection String
• CDR Text RADIUS
• Signaling Stack
  • CAS
  • H.248
  • ISDN
  • SIGTRAN
  • SIP
  • SS7