Global Tab - Cisco WS-C3550-12G User Manual
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OSPF Management Window
Global Tab
The Global tab of the OSPF Management dialog consists of a single area, Global Network Configuration.
The table within describes the OSPF view of all interfaces on the router. This table contains the following
columns:
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Cisco Catalyst Switch Manager User Guide
11-8
Link Index—Unique identifier of an interface on the router. This value is equal to the unique
identifier of the interface if this is a Layer 2 (address-less) interface. If the interface is a Layer 3
(addressed) interface, this value is 0. This identifier is dynamic, it may change over the lifetime of
an interface.
IP Address—IP address of the interface.
Area ID—Unique identifier of the area to which the interface connects. An Area ID of 0.0.0.0 is
used for the OSFP backbone.
Network Type—OSPF interface type. OSPF network type can be NBMA even on a broadcast media
such as Ethernet. This column has the following values:
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broadcast
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nbma
pointToPoint
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pointToMultipoint
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Admin Status—OSPF interface's administrative status.
enabled—Indicates that neighbor relationships can be formed on the interface, and the interface
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will be advertised as an internal route to some area.
disabled—Indicates that the interface is external to OSPF.
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Trans. Priority—The priority of this interface. Used in multiaccess networks, this field is used in the
designated router election algorithm. The value 0 signifies that the router is not eligible to become
the designated router on this particular network. If more than one router has the same value, the
routers use their router ID as a tie breaker.
Trans. Delay (sec)—The estimated number of seconds it takes to transmit a link state update packet
over this interface.
Retrans. Interval (sec)—The number of seconds between link-state advertisement retransmissions
for adjacencies belonging to this interface. This value is also used when retransmitting database
description and link-state request packets.
Hello Interval (sec)—The length of time, in seconds, between the hello packets that the router sends
on the interface. This value must be the same for all routers attached to a common network.
Trans. Dead (sec)—The number of seconds that a router's hello packets have not been seen before
its neighbors declare the router down. This should be some multiple of the hello interval. This value
must be the same for all routers attached to a common network.
Polling Interval (sec)—The larger time interval, in seconds, between the hello packets sent to an
inactive nonbroadcast multiaccess neighbor.
State—The OSPF interface state.
Designated Router—IP address of the designated router.
Backup Designated Router—IP address of the backup designated router.
Authentication Key—Password to be used by neighboring OSPF routers on a network segment that
is using OSPF simple password authentication. Ignored if ospfAuthType is not "simple".
Chapter 11
Routing Management
OL-4930-01
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Troubleshooting
