Chapter 13. Passive OSPF Interfaces
passive-interface interface-name interface-number
interface-name—. Name of the interface.
interface-number—. Number of the interface.
Purpose: To prevent OSPF packets from being sent on the specified interface.
Initial Cisco IOS Software Release: 10.0
Configuration Example: Using a Passive Interface to Reduce Protocol Traffic
In Figure 13-1, Router B has a BGP neighbor relationship with Router C. The BGP routes learned by Router B from Router C are redistributed into OSPF. The network between Routers B and C needs to be advertised by OSPF to Router A so there is IP connectivity between Routers A and C. There is no need to send OSPF protocol packets to Router C. Therefore, the Serial 1 interface ...