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Route Tag Applications
An administrative policy controls how a router
handles the routes it receives from and sends to neighboring routers,
and governs the installation of routes in the routing table. Examples
of the types of administrative policies that you might apply with
a route tag include:
- Policies for redistributing routes received from other
protocols in the routing table to IS-IS
- Policies for redistributing routes between levels in an
IS-IS routing hierarchy; this is also referred to as route
leaking
- Policies for summarizing routes redistributed into IS-IS
or within IS-IS by creating aggregate (summary) addresses
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