Configuring protection type and next hop type preferences

The user can select if link protection or node protection is preferred in the selection of a LFA next hop for all IP prefixes and LDP FEC prefixes to which a route next hop policy template is applied. The default in SR OS implementation is node protection. The implementation falls back to the other type if no LFA next hop of the preferred type is found.

The user can also select if tunnel backup next hop or IP backup next hop is preferred. The default in SR OS implementation is to prefer IP next hop over tunnel next hop. The implementation falls back to the other type if no LFA next hop of the preferred type is found.

The following options are added into the Route next hop policy template.

CLI syntax

configure router route-nh-template template template-name
   protection-type {link | node} 
   nh-type {ip | tunnel}

When the route next hop policy template is applied to an IP interface, all prefixes using this interface as a primary next hop follows the protection type and next hop type preference specified in the template.