PLANET WGS3-24240 - Manual (Page 279)

User’s Manual of WGS3-24000 / WGS3-24240
279
Selection Criteria
Object Description
• Create New Virtual
Link
Select this option from the dropdown menu to define a new virtual link. The area
portion of the virtual link identification is fixed: you will be prompted to enter the
Neighbor Router ID on a new screen.
• Area ID and Neighbor
Router ID
Select the virtual link for which you want to display or configure data. It consists
of the Area ID and Neighbor Router ID.
Configurable Data
。 Neighbor Router ID - Enter the neighbor portion of a Virtual Link specification. Virtual links may be configured
between any pair of area border routers having interfaces to a common (non-backbone) area. You only enter this ID
when you are creating a new virtual link.
。 Hello Interval - Enter the OSPF hello interval for the specified interface in seconds. This parameter must be the
same for all routers attached to a network. Valid values range from 1 to 65,535. The default is 10 seconds. .
。 Dead Interval - Enter the OSPF dead interval for the specified interface in seconds. This specifies how long a router
will wait to see a neighbor router's Hello packets before declaring 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 - Enter the OSPF Transit Delay for the specified interface. This specifies the estimated
number of seconds it takes to transmit a link state update packet over the selected interface. Valid values range
from 1 to 3600 seconds (1 hour). The default value is 1 second.
。 Retransmit Interval - Enter the OSPF retransmit interval for the specified 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 request packets. Valid values range from 1 to 3600 seconds (1
hour). The default is 5 seconds.
。 Authentication Type - You may select an authentication type other than none by clicking on the 'Configure
Authentication' button. You will then see a new screen, where you can select the authentication type from the
pulldown menu. The choices 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.
„
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 prompted to enter both an authentication key and an
authentication ID. Encryption uses the MD5 Message-Digest algorithm. All routers on the network must
be configured with the same key and ID.