9.2 Babel configuration

Command: router babel

Command: no router babel

Enable or disable Babel routing.

Babel Command: network ifname

Babel Command: no network ifname

Enable or disable Babel on the given interface.

Interface Command: babel wired

Interface Command: babel wireless

Specifies whether this interface is wireless, which disables a number of optimisations that are only correct on wired interfaces. Specifying wireless (the default) is always correct, but may cause slower convergence and extra routing traffic.

Interface Command: babel split-horizon

Interface Command: no babel split-horizon

Specifies whether to perform split-horizon on the interface. Specifying no babel split-horizon (the default) is always correct, while babel split-horizon is an optimisation that should only be used on symmetric and transitive (wired) networks.

Interface Command: babel hello-interval <20-655340>

Specifies the time in milliseconds between two scheduled hellos. On wired links, Babel notices a link failure within two hello intervals; on wireless links, the link quality value is reestimated at every hello interval. The default is 4000ms.

Interface Command: babel update-interval <20-655340>

Specifies the time in milliseconds between two scheduled updates. Since Babel makes extensive use of triggered updates, this can be set to fairly high values on links with little packet loss. The default is 20000ms.

Babel Command: babel resend-delay <20-655340>

Specifies the time in milliseconds after which an “important” request or update will be resent. The default is 2000ms. You probably don’t want to tweak this value.