# Routing

The Routing section explains how ODUS decides which payment gateway to use for each card payment. There are two ways to configure it.

A **route** is a decision tree that can read the payment: the card's brand, BIN, issuer and funding type, the amount and currency, and your own metadata. Use it to send different cards to different gateways, with failover after a decline.

A **cascade** is a named list of gateway profiles and a rule for selecting between them. When a gateway fails or reaches a configured limit, ODUS automatically routes the payment to the next gateway in the cascade. A cascade does not read the payment.

## Guides

* [How routes work](https://docs.odus.com/docs/guides/routing/how-routes-work.md)
* [Routing card payments with a route](https://docs.odus.com/docs/guides/routing/routing-card-payments.md)
* [How cascade routing works](https://docs.odus.com/docs/guides/routing/cascade-overview.md)
* [Configuring cascade rules](https://docs.odus.com/docs/guides/routing/configuring-cascades.md)