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Appendix K Router Platform User Interface Reference
OSPF Interface Policy Page
K-240
User Guide for Cisco Security Manager 3.2
OL-16066-01
Priority The default priority of the interface. The priority is used to determine which
routers become the designated router (DR) and backup designated router
(BDR) for that segment. The higher the number, the higher the priority.
The default priority is 1. Valid values range from 0 to 255.
Note To exclude the interface from election as DR or BDR, assign a
priority of 0. Configure router priority only for interfaces to
multiaccess networks, not point-to-point networks.
MTU Ignore When selected, ignores MTU mismatches between neighboring routers.
When deselected, MTU mismatch detection is enabled.
Note Typically, this option is not used, because it can cause routers to
become stuck in exstart/exchange state, which prevents OSPF
adjacency from being established.
Database Filter When selected, blocks link-state advertisement (LSA) flooding to the
selected interface.
When deselected, LSA flooding is permitted.
Note We recommend that you enable this option on fully-meshed
networks. This option is not available for point-to-multipoint
networks.
Hello Interval The default interval (in seconds) between hello packets sent over the selected
interface. These packets are used by neighboring routers to confirm the
router sending the packets is still operating. Valid values range 1 to 65535
seconds.
Note The hello interval must be the same for all routers and access servers
in the network.
Transmit Delay The amount of time OSPF waits (in seconds) before flooding an LSA over
the link.
The default is 1 second. Valid values range from 1 to 65535 seconds.
Note When you configure slow links or on-demand links that queue traffic
before sending it in bursts, we recommend that you take these link
delays into account when defining this value.
Table K-110 OSPF Interface Dialog Box (Continued)