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Note

Beginning in release 8.0, Load Balancing Service configuration applies only to media SBC (M-SBC) clusters in distributed SBC SWe deployments. The M-SBC load balancing distributes media requests among nodes. Load balancing of REGISTER or INVITE requests through retargeting is no longer supported and should not be configured.

The

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 supports configuring a Load Balancing Service (LBS) to distribute INVITE and REGISTER details between SBC platforms or D-SBC instances, as applicable. 

To disable Load Balancing for a particular zone, refer to Zone - Retarget Support - CLI.

M-SBC Note

To configure a LBS on a PKT port (any IP Interface other than MGMT), execute the command "set system clusterAdmin clusterComm type ip" before the LBS configuration on M-SBC. Refer to Cluster Admin - CLI for configuration details.

Use the 'show table/system loadBalancingService...' command to view Load Balancing Service configuration status details. Refer to Show Table System for details.

 

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

SBC Core Syntax (except M-SBC)

The following Load Balancing Service CLI syntax applies to the following platforms:

  • SBC 5xx0, 7000, SWe
  • S-SBC (in a SWe Cloud D-SBC configuration)
% set system loadBalancingService
	groupName <group_name>
	inviteRetargetMode <disable | redirect>
	registerRetargetMode <disable | redirect>

SBC M-SBC Syntax

The following Load Balancing Service CLI applies to M-SBC (in a SWe Cloud D-SBC configuration).

% set system loadBalancingService
	groupName <group_name>
	privateIpInterfaceGroupName <name> 

Command Parameters

SBC Core Parameters (except M-SBC)

The following Load Balancing Service parameters apply to the following platforms:

  • SBC 5xx0, 7000, SWe 
  • S-SBC (in a SWe Cloud D-SBC configuration)

See Load Balancing Service Parameters (M-SBC) table below for M-SBC parameter descriptions.

Load Balancing Service Parameters

ParameterDescription
groupName<name> – Domain name of the load balancing group. (1-63 characters)

inviteRetargetMode

Specifies the load balancing service mode for INVITEs. Use this parameter to enable load balancing for initial INVITE requests. 

 If set to redirect, calls are retargeted, as necessary, to balance the load using SIP 302 "Moved Temporarily" response code.

  • disabled (default)
  • redirect

registerRetargetMode

Specifies the load balancing service mode for REGISTERs. Use this parameter to enable load balancing for REGISTER requests.

 If set to redirect, new registrations are retargeted, as necessary, to balance the load using SIP 302 "Moved Temporarily" response code.

  • disabled (default)
  • redirect

SBC M-SBC Parameters

Load Balancing Service Parameters (M-SBC)

ParameterDescription
groupName<name> – Domain name of the load balancing group. (1-63 characters)
privateIpInterfaceGroupName<name> – Use this parameter to specify the name of the private IP Interface Group the M-SBC/T-SBC uses to communicate to the Media Resource Function (MRF) for this load balancing group.

Command Examples

To configure the load balancing service on S-SBC:

set system loadBalancingService groupName lbg1.xyz.com inviteRetargetMode redirect registerRetargetMode redirect
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To configure the load balancing service on M-SBC:

set system loadBalancingService groupName lbg1.xyz.com privateIpInterfaceGroupName LIF1
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