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Field Attributes
OSPF Interface List
• VLAN ID – The VLAN to which an IP interface has been assigned.
• Interface IP – The IP interface associated with the selected VLAN.
• Area ID – The area to which this interface has been assigned.
• Designated Router – Designated router for this area.
• Backup Designated Router – Designated backup router for this area.
• Entry Count – The number of IP interfaces assigned to this VLAN.
Note: This router supports up 64 OSPF interfaces.
Detail Interface Configuration
• VLAN ID – The VLAN corresponding to the selected interface.
• Rtr Priority – Sets the interface priority for this router. (Range: 0-255;
Default: 1)
- A designated router (DR) and backup designated router (BDR) is
elected for each OSPF area based on Router Priority. The DR forms
an active adjacency to all other routers in the area to exchange routing
topology information. If for any reason the DR fails, the BDR takes
over this role.
- The router with the highest priority becomes the DR and the router
with the next highest priority becomes the BDR. If two or more
routers are set to the same priority, the router with the higher ID will
be elected. You can set the priority to zero to prevent a router from
being elected as a DR or BDR.
- If a DR already exists for an area when this interface comes up, the
new router will accept the current DR regardless of its own priority.
The DR will not change until the next time the election process is
initiated.
• Transmit Delay – Sets the estimated time to send a link-state update
packet over an interface. (Range: 1-65535 seconds; Default: 1)
- LSAs have their age incremented by a delay before transmission. You
should consider both the transmission and propagation delays for an