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Table Maps

E-series routers support the use of table maps to filter and manipulate the attributes of an IS-IS route before the route is installed in the routing table. Issuing the table-map command (in Router Configuration mode) applies a specified route map as a policy filter on the route before the route is installed in the routing table.

For IS-IS routes, the route map you apply by using the table-map command contains one or more set commands that can modify the following route attributes:

distance	origin
level	preference
metric	route type
metric type	tag

The router applies the specified route map to all routes currently and subsequently installed in the routing table. If any previously redistributed routes are changed as a result of applying the route map, the router redistributes these routes again with the changes caused by the route map.

For details about configuring and using route maps, see JUNOSe IP Services Configuration Guide.

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