This article demonstrates Load Balancing using Source IP only configuration.

A simple configuration example is available in the technical document, Configuring Load Balancing Using Source or Destination IP Only , but there is no actual configuration described with the output.
 

Steps to set load balancing by source IP only configuration:

1. Without setting the 'source-destination-only-loadbalancing' knob, load balancing is expected to occur as below:

   Note: In this example, ssh and telnet is used. Two different protocols accessing via remote device, which ensures the Source IP is the same and the Port is different.

   > ssh 88.88.88.1
    Link:
      ge-2/0/5.0
        Input :            33          1          5039         1352  <-- increasing this interface Input counter
        Output:            25          1          4415          904
      ge-2/0/6.0
        Input :             0          0             0            0
        Output:            13          0           683            0
  
> telnet 88.88.88.1  
 Link:
      ge-2/0/5.0
        Input :            44          0          6083            0
        Output:            38          0          5403            0
      ge-2/0/6.0
        Input :            26          3          1609         1856   <-- increasing this interface Input counter
        Output:            47          4          2619         1904
    

2. Add the 'source-destination-only-loadbalancing' configuration:

   [edit]
lab@MX# show forwarding-options
enhanced-hash-key {
    source-destination-only-loadbalancing {
        family inet {
            prefix-length 30;
        }
    }
}
 
[edit]
lab@MX# show policy-options
policy-statement Test {
    term 1 {
        from {
            route-filter 172.16.0.1/30 exact;
        }
        then {
            load-balance source-ip-only ;
        }
    }
}
 
[edit]
lab@MX# show routing-options
static {
    route 88.88.88.0/30 next-hop 192.168.1.2;
}
forwarding-table {
    export Test ;
}

• Configuring Load Balancing Using Source or Destination IP Only