set internet-connection-settings

In the R81.10.X releases, this command is available starting from the R81.10.10 version.

Description

Configures the SD-WAN probing settings.

See show internet-connection-settings.

Syntax

set internet-connection-settings

      jitter <0-10000>

      latency <0-10000>

      packet-loss <0-100>

      probing-host <IPv4 Address or Hostname>

      second-probing-host <IPv4 Address or Hostname>

      third-probing-host <IPv4 Address or Hostname>

      probing-interval <500-4294967295>

      probing-method {ping | http}

      probing-mode {best | average | worst}

Parameters

Parameter

Description

jitter

Configures the jitter threshold (in msec).

Default: 80

latency

Configures the latency threshold (in msec).

Default: 200

packet-loss

Configures the packet loss threshold (in %).

Default: 30

probing-host

Configures the IPv4 Address or Hostname for the first probing destination.

Default: dns.google.com

second-probing-host

Configures the IPv4 Address or Hostname for the second probing destination.

Default: dns.cloudflare.com

third-probing-host

Configures the IPv4 Address or Hostname for the third probing destination.

Default: dns.opendns.com

probing-interval

Configures the interval duration between probes (in msec).

Default: 1000

probing-method

Configures the probing method:

  • ping - ICMP ping (default)

  • http - HTTP

probing-mode

Controls which Internet connection the appliance selects in each steering object based on the probing results:

  • best - Selects the Internet connection that has the best probing results (the lowest values for the probing characteristics of packet loss, latency, and jitter). This is the default.

  • average - Selects the Internet connection that has the average probing results.

  • worst - Selects the Internet connection that has the worst probing results (the highest values for the probing characteristics of packet loss, latency, and jitter).

Example:

These two Internet connections are configured for SD-WAN - "WAN" and "DMZ".

There are three probing hosts (destinations) - "Host 1", "Host 2", and "Host 3".

The probing results over the configuration probing interval are:

 

WAN

DMZ

Probing

Characteristic

Host 1

Host 2

Host 3

Host 1

Host 2

Host 3

Packet Loss (%)

1

1

4

2

3

7

Latency (msec)

1

1

4

2

3

7

Jitter (msec)

1

1

4

2

3

7

Where:

  • The best probing result was:

    • For "WAN": Packet Loss = 1, Latency = 1, Jitter = 1

    • For "DMZ": Packet Loss = 2, Latency = 2, Jitter = 2

  • The average probing result was:

    • For "WAN": Packet Loss = (1+1+4)/3 = 2, Latency = (1+1+4)/3 = 2, Jitter = (1+1+4)/3 = 2

    • For "DMZ": Packet Loss = (2+3+7)/3 = 4, Latency = (2+3+7)/3 = 4, Jitter = (2+3+7)/3 = 4

  • The worst probing result was:

    • For "WAN": Packet Loss = 4, Latency = 4, Jitter = 4

    • For "DMZ": Packet Loss = 7, Latency = 7, Jitter = 7

Therefore:

  • If you configure "best", the appliance selects the Internet connection "WAN".

  • If you configure "average", the appliance selects the corresponding Internet connection.

  • If you configure "worst", the appliance selects the Internet connection "DMZ".

Note - If there is a tie between the Internet connections, the appliance selects an Internet connection based the configuration parameter "link-utilization" (see set steering-object):

  • If you configured the value "link-aggregation", the appliance uses all good interfaces.

  • If you configured the value "prioritize", the appliance fails over and falls back between the Internet connections.

Example Command

set internet-connection-settings latency 200 jitter 80 packet-loss 30 probing-host dns.google.com probing-interval 1000