Dialogic TX4000 PCI SS7 Installation Manual download pdf (Page 35)

TX 4000 PCI SS7 Network Interface Board Installation Manual Establishing network connections

Single-node redundant signaling server

The following illustration shows how to set up two TX 4000 boards based on the

single-node signaling server in a TDM configuration. The boards are located in the

same chassis to ensure board-level redundancy.

SS7 links

TX 4000

(primary)

Chassis 1

Private Ethernet connection

Ethernet 1

TX 4000

(backup)

IP network configuration

To connect a TX 4000 board to its redundant mate in an IP network configuration,

use a Category 5 shielded twisted pair (STP) crossover cable. Using the crossover

cable, connect Ethernet 1 on the primary board to Ethernet 1 on the backup board.

Using standard Ethernet cables, connect the Ethernet 2 connectors on both boards to

the IP network connectors.

Note: Dialogic recommends using a private Ethernet link to connect the redundant

boards to avoid loss or delay of vital checkpoint messages. However, if each board in

the redundant pair requires multi-homing, you can use Ethernet 1 for both the

redundant pathway and for SIGTRAN network access. In this configuration, the

Ethernet 1 on each board is connected to what is shown as an IP network cloud in

the illustrations that follow (just as the Ethernet 2 connectors are). Be aware that

this greatly increases the chance of lost or delayed checkpoint messages which can

result in the backup having outdated information.

You must specify the IP address of the TX board’s redundant mate using the mate

command in the txconfig utility. You must also define the IP interface address using

the ifcreate command (for interface 1) in the txconfig utility. For more information,

refer to the Dialogic® NaturalAccess™ Signaling Software Configuration Manual.

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Dialogic TX4000 PCI SS7 Installation Manual Page 35