Equal Cost Path Splitting

You can configure the maximal number of equal-cost paths that will be used when there is more than one equal-cost path to a destination.

You can specify a value for the maximal number of equal-cost paths to be used when there is more than one equal-cost path to a destination.

Only OSPF, BGP, and Static routes are able to use paths/routes with more than one "nexthop".

The "next hop" algorithm that is used for forwarding when there is more than one "next hop" to a destination is Source/Destination hash.

A hash function is performed on the source and destination IP address of each packet that is forwarded to a multipath destination.

This result is used to determine which next hop to use.

Important: In a Cluster Two or more Security Gateways that work together in a redundant configuration - High Availability, or Load Sharing., you must configure all the Cluster Members in the same way. If you change the current number of equal cost paths, the routing system reinstalls all routes. This causes a traffic outage.

Configuring Equal Cost Path Splitting in Gaia Portal

1. From the left navigation tree, click Advanced Routing > Routing Options.

2. In the Equal Cost Multipath section, in the Maximum Paths field, enter the applicable number of equal cost paths.

   Range: 1-8

   Default: 8

3. In the Routing Options section (at the top), click Apply.

Configuring Equal Cost Path Splitting in Gaia Clish

1. Configure the applicable number of equal cost paths:

   set max-path-splits {<1-8> | default}

   Range: 1-8

   Default: 8

2. Save the configuration:

   save config

3. Examine the configuration:

   show configuration max-path-splits