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Use this command to configure the D-SBC signaling ports for the IP Interface Group used to communicate between the signaling, media and transcoding SBCs.

The D-SBC Signaling Port configuration syntax, parameter descriptions and command examples are included in this section.


Note

You must configure Cluster Admin for intra-cluster node communication before configuring a D-SBC signaling port, Load balancing service and DNS group parameters.

Refer to Cluster Admin - CLI for configuration details.

Command Syntax

% set system dsbc dsbcSigPort
	addressContext <addressContext name>
	encryptionType <none>
	ipInterfaceGroup <IPIG name>
	ipPublicVarV4 <metaVariable>
	ipPublicVarV6 <metaVariable>
	ipVarV4 <metaVariable>
	ipVarV6 <metaVariable>
	mode <inService | outOfService>
	state <disabled | enabled>
	timers <keepalive | retry>
	transportType <tcp>
	type <ip>
Note:

Make sure when configuring sipSigPort and dsbcSigPort for an S-SBC deployment that you specify different IP addresses for them. To do so you must select different metavariables for each of them. The actual values of the metavariables are determined during orchestration of your deployment.

Note:

In distributed SBC deployments, despite receiving a BYE from a participating endpoint, the S-SBC does not immediately release stable calls in the following scenarios:

  • If the connection between the S-SBC and M-SBC nodes is down, pass-through calls are not released.
  • If the connection between the S-SBC and T-SBC nodes is down, transcoded calls are not released.

In such cases, the calls are released only after the D-SBC retry timer expires. The configuration option for this timer is described in the following table.

Command Parameters

DSBC Sig Port Parameters

ParameterLength/RangeDescription
addressContextN/A<addressContext name> – The name of the address context to use for the D-SBC IP Interface Group.
encryptionTypeN/A

The encryption type used for the D-SBC signaling link.

  • none (default)
ipInterfaceGroupN/A

<IPIG name> – The name of the IP Interface Group used by the D-SBC signaling port.

ipPublicVarV41-255 characters<metaVariable> – The name of the metaVariable used to fetch the public/floating IPv4 address.
ipPublicVarV61-255 characters<metaVariable> – The name of the metaVariable used to fetch the public/floating IPv6 address.
ipVarV41-255 characters<metaVariable> – The name of the metaVariable used to fetch the IPv4 address.
ipVarV61-255 characters<metaVariable> – The name of the metaVariable used to fetch the IPv6 address.
modeN/A

The D-SBC signaling port mode.

  • inService
  • outOfService (default)
stateN/A

The state of the D-SBC signaling listener port.

  • disabled (default)
  • enabled
timersN/A

Use this parameter to configure keep-alive and retry timers related to recovering a D-SBC signaling link when stable calls are present.

  • keepalive – The D-SBC signaling channel keep-alive timer in seconds (range: 1-60 / default = 3)
  • retry – Retry time in seconds, the D-SBC attempts to recover a D-SBC signaling link (range: 1-600 / default = 20)

NOTE: Before changing the D-SBC timer value, disable dsbcSigPort by setting mode to 'outOfService' and state to 'disabled'. Once you commit the timer value, revert mode and state back to 'inService' and 'enabled', respectively.

transportTypeN/A

The transport type used for D-SBC signaling link.

  • tcp (default)
typeN/A

The interface type supported by the D-SBC.

  • ip (default)

Command Examples

To configure D-SBC Signaling Port:

set system dsbc dsbcSigPort addressContext default ipInterfaceGroup LIG1 type ip ipVarV4 IF2.IPV4 mode inService state enabled
commit
show details system dsbc dsbcSigPort 
type             ip;
ipInterfaceGroup LIG2;
addressContext   default;
ipVarV4          IF3.IPV4;
ipPublicVarV4    IF3.FIPV4;
transportType    tcp;
encryptionType   none;
mode             inService;
state            enabled;
timers {
    keepalive 3;
    retry     1;
}
[ok]

To disable D-SBC Signaling Port:

set system dsbc dsbcSigPort mode outOfService state disabled
commit

To set the values of the keep-alive and retry timers to "3" and "20" seconds, respectively :

set system dsbc dsbcSigPort timers keepalive 3 retry 20
commit

To enable D-SBC Signaling Port:

set system dsbc dsbcSigPort mode inService state enabled
commit

To view the keep-alive timer value:

show table system dsbc dsbcSigPort timers keepalive
keepalive 3;

 To view the retry timer value:

show table system dsbc dsbcSigPort timers retry
retry 20;