Alcatel-Lucent 7705 - Default Route Policy Actions

Route Policies
7705 SAR OS Router Configuration Guide 427
Default Route Policy Actions
Routing protocols have default behaviors for the import and export of routing information.
For BGP, OSPF, and IS-IS, the default route policy actions are as follows:
•BGP
→ import – all routes from BGP peers are accepted and passed to the BGP route
selection process
→ export (internal routes) – all active BGP routes are advertised to BGP peers
→ export (external routes) – all non-BGP learned routes are not advertised to BGP
peers
• OSPF and IS-IS
→ import – not applicable; all OSPF or IS-IS routes are accepted from OSPF or
IS-IS neighbors and cannot be controlled by route policies
→ export (internal routes) – all OSPF or IS-IS routes are automatically advertised
to all neighbors
→ export (external routes) – all non-OSPF or non-IS-IS learned routes are not
advertised to OSPF or IS-IS neighbors