Below are attributes for configuring an SGC Stack instance and the entire cluster.

Note
Atribute modification restrictions

  • Only attributes that are "Reconfigurable" can be modified after a configuration object is created.

  • Attributes that do not support "Active Reconfiguration" can be changed only when the configuration object is disabled (the value of its disabled attribute is false).

node

The node configuration object is for configuring an SGC Stack instance. Every SGC instance that is to be a part of cluster must be represented by a node configuration object. During startup, the SGC instance property ss7.instance is matched against the oname of existing nodes. If a match is found, the SGC instance will connect to the cluster, acting as that matching node.

Attribute name Attribute description Default

oname

object name

dependencies
Read only

number of items which depend on this object

enabled
Reconfigurable / Active reconfiguration

is object enabled

false

active
Read only

is object active

switch-local-address
Reconfigurable

local address for CommSwitch to bind to

switch-port
Reconfigurable

local port for CommSwitch to bind to

9701

stack-data-address
Reconfigurable

interface where stack can connect for data connection

The TCAP Stack that is bundled with CGIN RA will use this connection to originate and receive TCAP messages.

value of stack-http-address if defined, otherwise value of switch-local-address

stack-data-port
Reconfigurable

port where stack can connect for data connection

The TCAP Stack that is bundled with CGIN RA will use this connection to originate and receive TCAP messages.

9703

stack-http-address
Reconfigurable

interface where stack can get balancing information

The TCAP Stack that is bundled with CGIN RA will use this connection to to register with the SGC node.

value of stack-data-address if defined, otherwise value of switch-local-address

stack-http-port
Reconfigurable

port where stack can get balancing information

The TCAP Stack that is bundled with CGIN RA will use this connection to to register with the SGC node.

9702

local-configuration
Read only

node configuration

Specifies values of properties that can be defined in the SGC.properties file.
Note The JMX Object name for node is SGC:type=general,category=node

parameters

The parameters category specifies cluster-wide configuration (for a single cluster).

Attribute name Attribute description Default

sccp-variant
Reconfigurable

SCCP variant to be used: itu or ansi

The following conditions must be met in order to reconfigure this property:

  • Own signalling point code must be set to 0

  • No outbound GTT rules may be configured

  • No DPCs may be configured

  • No CPCs may be configured

  • No connections may be configured

itu

class1-resend-delay
Reconfigurable

delay (in milliseconds) before a class1 message is re-sent when route failure is detected

1000

sp
Reconfigurable

local signalling pointcode; format dependent on sccp-variant configuration

  • ITU; a 14-bit integer; supported formats: simple integer (4106) or int(3bit)-int(8bit)-int(3bit) (2-1-2)

  • ANSI; a 24-bit integer; supported formats: simple integer (34871) or int(8bit)-int(8bit)-int(8bit) in Network-Cluster-member order (3-125-44). This simple integer is the network byte order integer derived from the ANSI MTP/M3UA transmission order of the network, cluster and member components. i.e. [00000000 NNNNNNNN CCCCCCCC MMMMMMMM] where N=network, C=cluster and M=member.

0

sp-state
Reconfigurable

local signalling point state (OK/RESTRICTED/DOWN/CONG0/CONG1/CONG2)

OK

ni
Reconfigurable

network indicator used in M3UA messages sent by this node (INTERNATIONAL/SPARE/NATIONAL/RESERVED)

INTERNATIONAL

national
Reconfigurable

the national indicator bit in the address indicator octet of SCCP management messages sent by this node (AUTO/NATIONAL/INTERNATIONAL)

The meaning of AUTO depends on the SCCP variant configured:

  • ITU: AUTO means INTERNATIONAL

  • ANSI: AUTO means NATIONAL

AUTO

sccp-sst-interval
Reconfigurable

interval (in milliseconds) between sent SST messages

10000

sccp-timer-td
Reconfigurable

decay timer (in milliseconds) for SCCP congestion procedure
(Q.714 section 5.2.8 SCCP management congestion reports procedure)

10000

sccp-timer-ta
Reconfigurable

attack timer (in milliseconds) for SCCP congestion procedure
(Q.714 section 5.2.8 SCCP management congestion reports procedure)

600

sccp-max-rsl-m
Reconfigurable

maximum restriction sublevel per restriction level (Q.714 section 5.2.8 SCCP management congestion reports procedure)

4

sccp-max-rl-m
Reconfigurable

maximum restriction level for each affected SP
(Q.714 section 5.2.8 SCCP management congestion reports procedure)

8

sccp-timer-tconn
Reconfigurable

timer (in milliseconds) for congestion abatement

10000

ntfy-m3ua-err
Reconfigurable

time interval (in seconds) between successive notifications sent
when the M3Ua layer is unable to process incoming messages

600

ntfy-sccp-err
Reconfigurable

time interval (in seconds) between successive notifications sent
when the SCCP layer is unable to process incoming messages

60

ntfy-tcap-err
Reconfigurable

time interval (in seconds) between successive notifications sent
when the TCAP layer is unable to process incoming messages

60

sccp-timer-reassembly
Reconfigurable

reassembly timeout for SCCP reassembly procedure in milliseconds

2000

sccp-max-reassembly-processes
Reconfigurable

maximum number of concurrent SCCP reassembly processes that may be active.
0 = reassembly not supported.

10000

default-ansi-tcap-version
Reconfigurable

ANSI TCAP version to assume where this cannot be derived from the the dialog’s initial Query or Uni message.
Permitted options: 1988 and 2000.

See also the OCSS7 TCAP stack configuration property: default-tcap-version

2000
Note The JMX Object name for parameters is SGC:type=general,category=parameters.
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