User guide

Configuring IS-IS Configuring IS-IS
OmniSwitch AOS Release 7 Advanced Routing Configuration Guide March 2015 page 3-29
IS-IS allows redistributing Level-1 IS-IS routes into Level-2 IS-IS routes. This is termed as Level-1 to
Level-2 Leaking. This release also supports the prefix distribution from the level-2 IS-IS routes to level-1
IS-IS routes.
The following example configures the IS-IS Level-1 to Level-2 Leaking routes using a route map (is2is) to
filter specific routes.
To redistribute IS-IS Level-1 routes into IS-IS Level-2 routes, use the following route map sequence:
-> ip route-map is2is sequence-number 1 action permit
-> ip route-map is2is sequence-number 1 match route-type level1
-> ip route-map is2is sequence-number 1 set level level2
-> ip redist isis into isis route-map is2is status enable
The resulting is2is route map redistribution configuration redistributes all Level-1 IS-IS routes into Level-
2 IS-IS routes.