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User Guide for Cisco Security Manager 4.4
OL-28826-01
Chapter 64 Configuring Routing Policies
OSPF Interface Policy Page
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.
Retransmit Interval The interval between LSA retransmissions (in seconds) over the
selected interface.
The default is 5 seconds. Valid values range from 1 to 65535 seconds.
Note We recommend that you increase this value for serial lines and
virtual links.
Dead Interval The interval (in seconds) after which an interface declares its neighbor
dead if no hello packets are received. Valid values range from 1 to
655335 seconds.
Note The value of the dead interval is typically the hello interval
value multiplied by 4. The dead interval must be the same for
all routers and access servers in the network.
Table 64-12 OSPF Interface Dialog Box (Continued)
Element Description