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DES-3326 Layer 3 Fast Ethernet Switch User’s Guide
The following fields can be set:
Parameter Description
Interface Name
Allows the entry of the name of an IP interface previously
configured on the switch.
Area ID
Allows the entry of an OSPF Area ID configured above.
Router Priority
Allows the entry of a number between 1 and 255
representing the OSPF priority of the selected area. If a
Router Priority of 0 is selected, the switch cannot be elected
as the Designated Router for the network.
Hello Interval
Allows the specification of the interval between the
transmission of OSPF Hello packets, in seconds. Between
5 and 65535 seconds can be specified. The Hello Interval,
Dead Interval, Authorization Type, and Authorization Key
should be the same for all routers on the same network.
Dead Interval
Allows the specification of the length of time between the
receipt of Hello packets from a neighbor router before the
selected area declares that router down. An interval
between 5 and 65535 seconds can be specified. The Dead
Interval must be evenly divisible by the Hello Interval.
State
Allows the OSPF interface to be disabled for the selected
area without changing the configuration for that area.
Auth Type
This field can be toggled between None, Simple, and MD5
using the space bar. This allows a choice of authorization
schemes for OSPF packets that may be exchanged over the
OSPF routing domain. None specifies no authorization.
Simple uses a simple password to determine if the packets
are from an authorized OSPF router. When Simple is
selected, the Auth Key field allows the entry of a 8
character password that must be the same as a password
configured on a neighbor OSPF router. MD5 uses a
cryptographic key entered in the MD5 Key Table
Configuration menu. When MD5 is selected, the Auth Key
ID field allows the specification of the Key ID as defined in
the MD5 configuration above. This must be the same MD5
Key as used by the neighboring router.
Metric
This field allows the entry of a number between 1 and
65,535 that is representative of the OSPF cost of reaching
the selected OSPF interface. The default metric is 1.
Virtual Interface Configuration
Virtual Interfaces are used by OSPF to link areas that do not have a physical connection to the
backbone (also called Area 0) or to link areas of the backbone itself that are discontinuous. This allows
routing information to flow from an area that is physically disconnected from area 0 into area 0 by
configuring an interface across one of the areas previously defined above.
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