Viewing Ss7 Configurations - Lucent Technologies PortMaster 4 Configuration Manual

Table of Contents

Configuring SS7

Using the Optional 1A Switch Type for T1

To configure the PortMaster 4 to communicate with an SS7 gateway using the 1A IMT

switch type, you must specify the switch type when you set the IP address and port

number of the gateway, and the PortMaster 4 base port number. The 1A setting allows

the PortMaster 4 to interpret the loopback command from the SS7 gateway as a 1A

continuity check request. Because 1A switches require continuity checks, you must

group 1A IMTs together on a board-by-board basis.

When you use the 1A setting, you must also set robbed bit signaling (RBS) on the line

and configure the appropriate line encoding and framing. With this setting, the

PortMaster 4 treats the IMT as a robbed bit signaled line with twenty-four 56Kbps

channels. It sets the bits to indicate an on-hook condition as specified by the E & M

wink start protocol.

For example, to set an SS7 gateway with IP address 192.168.10.10 and TCP port

number 10000 to communicate with a line board in slot 0 on TCP port 7000 using a 1A

switch, enter the following commands:

Command > set view 0

Command 0> set imt 192.168.10.10 10000 7000 1a

Changed gateway IP address from 0.0.0.0 to 192.168.10.10

Changed gateway port from 0 to 10000

Changed local port from 7000 to 7000

Changed switch type from default to 1a

Save the configuration and reboot the PortMaster to make the changes take effect.

Command 0> save all

Command 0> reset slot0

Because you must group 1A IMTs together on a board-by-board basis for continuity

check requests, you must then set robbed bit signaling on all active lines in the slot. For

example, to configure Line0 on a Quad T1 board in slot 0 to use robbed bit signaling,

enter the following commands:

Command 4> set view 0

Command 0> set line0 imt

Command 0> set line0 signaling rbs

Note – You set line signaling only for 1A type switches. When robbed bit signaling is

not set, the IMT supports 24 64Kbps channels.

After you set line signaling for each line you want to use for SS7, you must reset the

slot. For example, to reset slot 0, enter the following commands:

Command 0> set view 4

Command 4> reset slot 0