SEP SCCP configuration

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When using SCCP in a SEP, the SCCP must have a SCCP application above it to process the messages. This is usually a TCAP application.

To configure a SCCP layer on a SEP you need the following:

  • MTP interconnections
  • SCCP layer
  • SCCP management
  • TCAP layer

Contents

Network schema overview

Below is the schema of the network we are trying to configure. We'll be configuring SEP1.

STP SCCP config.png

SEP configuration

Layer 1

In sigtransport.conf

[sctp:SEP1-STP2]
type=sctp
local=100.1.1.5:2092
remote=100.1.1.1:2092

Layer 2

In ysigchan.conf

[m2pa:SEP1-STP2]
type=ss7-m2pa
sig=sctp:SEP1-STP2

Layer 3

In ysigchan.conf

[ls:SEP1-STP2]
type=ss7-mtp3
netind2pctype=ITU
netindicator=national
local=ITU:20
adjacent=ITU:10
link=m2pa:SEP1-STP2

SCCP

In ysigchan.conf

[sccp]
type=ss7-sccp
pointcodetype=ITU
netindicator=national
localpointcode=10
management=sccp-mgm

SCCP management

In ysigchan.conf

[sccp-mgm]
type=ss7-sccp-itu-mgm

;  STP1 is interested in our state

; Concerned point code 10
concerned=10

; Local Subsystems 6 and 7
concerned=10:6,7

If you were to have another STP, then it will also be concerned about our state and you would add another configuration: concerned=stp2_pc and concerned=stp2_pc:6,7 in this section.

TCAP - SCCP application

In ysigchan.conf

[tcap-hlr]
type=ss7-tcap-itu
local_SSN=6
default_remote_SSN=15
print-messages=true
sccp=sccp
transact_timeout=600
max_timeout_checks=5
floodevents=100

In camel_map.conf

[tcap hlr]
tcap=tcap-hlr
host=127.0.0.1
port=16101
type=MAP
print-messages=true
add-encoding=false

[local hlr]
translator=hlr
capabilities=USSD
export_xml_as=both
ussd-string=octets
ussd-decode=all

See also:

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