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Table of Contents

CLI Reference

config link-load-balance gateway

Use this command to configure gateway links.

The gateway link configuration enables you to specify health checks, bandwidth rate thresholds, and spillover threshold behavior for the gateway links you add to link groups.

Before you begin:

  • You must know the IP addresses of the ISP gateway link used in the network segment where the FortiADC appliance is deployed.
  • You must have added health check configuration objects that you want to use to probe the gateway links.
  • You must have read-write permission for link load balancing settings.

After you have configured a gateway link configuration object, you can select it in the link group configuration.

Syntax

config link-load-balance gateway

edit <name>

set health-check-ctrl {enable|disable}

set health-check-list {<datasource> ...}

set health-check-relation {AND|OR}

set inbound-bandwidth <integer>

set ip <class_ip>

set outbound-bandwidth <integer>

set spillover-threshold-in <integer>

set spillover-threshold-out <integer>

set spillover-threshold-total <integer>

next

end

health-check-ctrl

Enable/disable health checks.

health-check-list

Specify one or more health check configuration objects.

health-check-relation

  • AND—All of the specified health checks must pass for the server to the considered available.
  • OR—One of the specified health checks must pass for the server to be considered available.

inbound-bandwidth

Maximum bandwidth rate for inbound traffic through this gateway link.

ip

IP address of the gateway link.

outbound-bandwidth

Maximum bandwidth rate for outbound traffic to this gateway link. If traffic exceeds this threshold, the FortiADC system considers the gateway to be full and does not dispatch new connections to it.

The default is 2,000,000 Kbps. The valid range is 1 to 2,147,483,647.

We recommend you tune bandwidth thresholds strategically, using the bandwidth rate and price structure agreement you have with your ISP to your advantage.

spillover-threshold-in

Maximum inbound bandwidth rate for a link in a spillover load balancing pool.

spillover-threshold-out

Maximum outbound bandwidth rate for a link in a spillover load balancing pool.

If you enable spillover load balancing in the link group configuration, the system maintains a spillover list. It dispatches new connections to the link with the greatest priority until its spillover threshold is exceeded; then dispatches new connections to the link with the next greatest priority until its threshold is exceeded, and so on.

The default is 2,000,000 Kbps. The valid range is 1 to 2,147,483,647.

spillover-threshold-total

Maximum total bandwidth rate (inbound plus outbound) for a link in a spillover load balancing pool.

Example

FortiADC-VM (gateway) # edit llb-gateway

Add new entry 'llb-gateway' for node 2501

FortiADC-VM (llb-gateway) # get

ip : 0.0.0.0

inbound-bandwidth : 2000000

outbound-bandwidth : 2000000

health-check-ctrl : disable

spillover-threshold-in: 2000000

spillover-threshold-out: 2000000

spillover-threshold-total: 2000000

 

FortiADC-VM (llb-gateway) # set ip 192.168.1.1

FortiADC-VM (llb-gateway) # end

 

FortiADC-VM # get link-load-balance gateway llb-gateway

ip : 192.168.1.1

inbound-bandwidth : 2000000

outbound-bandwidth : 2000000

health-check-ctrl : disable

spillover-threshold-in: 2000000

spillover-threshold-out: 2000000

spillover-threshold-total: 2000000

config link-load-balance gateway

Use this command to configure gateway links.

The gateway link configuration enables you to specify health checks, bandwidth rate thresholds, and spillover threshold behavior for the gateway links you add to link groups.

Before you begin:

  • You must know the IP addresses of the ISP gateway link used in the network segment where the FortiADC appliance is deployed.
  • You must have added health check configuration objects that you want to use to probe the gateway links.
  • You must have read-write permission for link load balancing settings.

After you have configured a gateway link configuration object, you can select it in the link group configuration.

Syntax

config link-load-balance gateway

edit <name>

set health-check-ctrl {enable|disable}

set health-check-list {<datasource> ...}

set health-check-relation {AND|OR}

set inbound-bandwidth <integer>

set ip <class_ip>

set outbound-bandwidth <integer>

set spillover-threshold-in <integer>

set spillover-threshold-out <integer>

set spillover-threshold-total <integer>

next

end

health-check-ctrl

Enable/disable health checks.

health-check-list

Specify one or more health check configuration objects.

health-check-relation

  • AND—All of the specified health checks must pass for the server to the considered available.
  • OR—One of the specified health checks must pass for the server to be considered available.

inbound-bandwidth

Maximum bandwidth rate for inbound traffic through this gateway link.

ip

IP address of the gateway link.

outbound-bandwidth

Maximum bandwidth rate for outbound traffic to this gateway link. If traffic exceeds this threshold, the FortiADC system considers the gateway to be full and does not dispatch new connections to it.

The default is 2,000,000 Kbps. The valid range is 1 to 2,147,483,647.

We recommend you tune bandwidth thresholds strategically, using the bandwidth rate and price structure agreement you have with your ISP to your advantage.

spillover-threshold-in

Maximum inbound bandwidth rate for a link in a spillover load balancing pool.

spillover-threshold-out

Maximum outbound bandwidth rate for a link in a spillover load balancing pool.

If you enable spillover load balancing in the link group configuration, the system maintains a spillover list. It dispatches new connections to the link with the greatest priority until its spillover threshold is exceeded; then dispatches new connections to the link with the next greatest priority until its threshold is exceeded, and so on.

The default is 2,000,000 Kbps. The valid range is 1 to 2,147,483,647.

spillover-threshold-total

Maximum total bandwidth rate (inbound plus outbound) for a link in a spillover load balancing pool.

Example

FortiADC-VM (gateway) # edit llb-gateway

Add new entry 'llb-gateway' for node 2501

FortiADC-VM (llb-gateway) # get

ip : 0.0.0.0

inbound-bandwidth : 2000000

outbound-bandwidth : 2000000

health-check-ctrl : disable

spillover-threshold-in: 2000000

spillover-threshold-out: 2000000

spillover-threshold-total: 2000000

 

FortiADC-VM (llb-gateway) # set ip 192.168.1.1

FortiADC-VM (llb-gateway) # end

 

FortiADC-VM # get link-load-balance gateway llb-gateway

ip : 192.168.1.1

inbound-bandwidth : 2000000

outbound-bandwidth : 2000000

health-check-ctrl : disable

spillover-threshold-in: 2000000

spillover-threshold-out: 2000000

spillover-threshold-total: 2000000