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D-View 5.1 User's Guide
The Interface Table and the Interface Metric Table together describe the various IP
interfaces to OSPF. The metrics are placed in separate tables in order to simplify
dealing with multiple types of service, and to provide flexibility in the event that the IP
TOS definition is changed in the future. A Default Value specification is supplied for the
TOS 0 (default) metric.
Virtual Interface Table
Likewise, the Virtual Interface Table describes virtual links to the OSPF Process.
Neighbor and Virtual Neighbor Tables
The Neighbor Table and the Virtual Neighbor Table describe the neighbors to the OSPF
Process.
OSPF Traps
OSPF is an event driven routing protocol, where an event can be a change in an OSPF
interface's link-level status, the expiration of an OSPF timer or the reception of an
OSPF protocol packet. Many of the actions that OSPF takes as a result of these events
will result in a change of the routing topology. As routing topologies become large and
complex it is often difficult to locate the source of a topology change or unpredicted
routing path by polling a large number or routers. Another approach is to notify a
network manager of potentially critical OSPF events with SNMP traps.
Table 30
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Figure 137
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