Signaling System 7 (SS7)

Configuring an SS7 signaling gateway

For some sites, administrative policy or other constraints introduce a requirement to use the system address for some purposes, but to use a separate source address for communication with the signaling gateway. For example, although a site might require a certain system address for compatibility with other routers, this requirement might cause an address space conflict, or might cause delays and time-outs in the receipt of acknowledgements from signaling gateways. Or, a site might decide to separate the signaling control network from the Internet for security purposes.

To enable sites to integrate TAOS units into their infrastructure and at the same time communicate efficiently with signaling gateways, the following parameter (shown with its default value) was introduced:

[in SS7-GATEWAY] use-system-ip-address-as-source = yes

When this parameter is set to no, the TAOS unit does not use the system address as its source address for signaling packets. Instead, it uses the IP address of the Ethernet interface on which the signaling packets are sent. When the parameter is set to yes, the TAOS unit uses the same system address for signaling packets as for all other packets generated by the system.

Example of a basic configuration

The following commands configure an SS7-Gateway profile for a single TCP connection to a signaling gateway running IPDC:

admin> read ss7-gatewaySS7-GATEWAY read

admin> set enabled = yes

admin> set primary-ip-address = 1.1.1.1 admin> set primary-tcp-port = 5000

admin> write SS7-GATEWAY written

Note: For the link to become active, the signaling gateway must have a matching entry for the TAOS unit. For information about configuring the signaling gateway, see the documentation that came with the unit.

T1 lines as SS7 data trunks

T1 lines:signaling system 7 (SS7) data trunks;To configure T1 lines for SS7, you must set the following parameters, shown with sample settings:

[in T1/{ shelf-1 slot-1 7 }:line-interface] signaling-mode = ss7-data-trunk incoming-call-handling = internal-processing

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Lucent Technologies 7820-0802-003 manual Example of a basic configuration, T1 lines as SS7 data trunks