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Slot/Port - Select the interface for which data is to be displayed or configured.
Configurable Data
OSPF Area ID - Enter the 32 bit integer in dotted decimal format that uniquely identifies the OSPF
area to which the selected router interface conn ect s. If you assign an Area ID which does not exist,
the area will be created with default values. Leave blank to disable.
Router Priority - Enter the OSPF priority for the selected interface. The priority of an interface is
specified as an integer from 0 to 255. The default is 1, which is the highest router priority. A value of '0'
indicates that the router is not eligible to become the designated router on this network
Retransmit Interval (secs)- Enter the OSPF retransmit interval for the specifie d interface. This is the
number of seconds between link-state advertisements for adjacencies belonging to this router
interface. This value is also used when retransmitting database descriptions and link-state reque st
packets. Valid values range from 1 to 3600 seconds (1 hou r). The default is 5 seconds.
Hello Interval (secs)- Enter the OSPF hello interval for the specified interface in seconds. T his
parameter must be the same for all rout ers attached to a network. Valid values range from 1 to
65,535. The default is 10 seconds.
Dead Interval (secs)- Ente r the OSPF dead interval for the specified interface in se conds. This
specifies how long a router will wait to se e a neighbor router' s Hello packet s before decla ring that the
router is down. This parameter must be the same for all routers attached to a network. This value
should a multiple of the Hello Interval (e.g. 4). Valid values range from 1 to 2147483647. The default
is 40.
Iftransit Delay Interval (secs)- Enter the OSPF Transit Delay for the specified interface. This
specifies the estimated number of seconds it takes to transmit a link state u pdate packet over the
selected interface. Valid values range from 1 to 3600 seconds (1 hour). The defa ult value is 1 second.
MTU Ignore - Disables OSPF MTU mismatch detection on receiving packets. Default value is
Disable. (MTU mismatch detection is enabled.)
Passive Mode - Make an interface passive to prevent OSPF from forming an adjace ncy on an
interface. OSPF advertises networks attached to passive interfaces as stub net works. Interfaces are
not passive by default.
Network Type - Sets the OSPF network type on the interface to broadcast or point-to-point. OSPF
only selects a designated router and originates network LSAs for broadcast networks. No more than
two OSPF routers may be present on a point-to -poi nt link. The default network type for Ethernet
interfaces is broadcast..
Authentication Ty pe - You may select an authentication type other than none by clicking on the
'Configure' button. You will then see a new screen, wh ere you can select the authentication type from
the pulldown menu. The choice s are:
• None - This is the initial interface state. If you select this option from the pulldown menu on the
second screen you will be returned to the first screen and no authentication protocols will be
run.
• Simple - If you select 'Simple' you will be prompted to enter an authentication key. This key
will be included, in the clear, in the OSPF header of all packets sent on the network. All routers
on the network must be configured with the same key.
• Encrypt - If you select 'Encrypt' you will be prompt ed to enter both an auth entication key and
an authentication ID. Encryption uses th e MD5 Message-Digest algorithm. All routers on the
network must be config ured with the same key and ID.
Authentication Key - Enter the OSPF Authentication Key for the specified interface. If you do not
choose to use authentication you will not be prompted to enter a key. If you choose 'simple'
authentication you cannot use a key of more than 8 octets. If you choose 'encry pt' the key may be up
to 16 octets long. The key value will only be displayed if you are logged on with Read/Write privileges,
otherwise it will be displayed as asterisks.