Route Leaking

Route leaking allows L2 LSPs to be sent into L1 areas. Route leaking is configured with the command:

configure isis area area_name interlevel-filter level 2-to-1 [policy | block-all | allow-all] {ipv4 | ipv6}

The supplied policy defines what route or routes should be leaked.

Caution

Caution

Route leaking can reduce scalability and performance.
Note

Note

Tracert does not work if the VRF leaked route is one of the hop(s) to destination.