--------------------------------------------
.: Taken from "CCIE Practical Studies Volume 1" :.
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.: Page 761 (Karl Solie) :.
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Physical | | Static | | Desired |
Interface | Default OSPF | Neighbor | DR/BDR | Neighbor | Priority
Type | Network Type | Needed | Elected | State | Recomended
-------------------|--------------|----------|---------|----------|------------
Broadcast Media | Broadcast* | No | Yes | FULL/DR | Yes
(Eth, Token, Etc.) | | | | FULL/BDR |
| | | | FULL/- |
-------------------|--------------|----------|---------|----------|------------
Frame Relay | NMBA | Yes | Yes | FULL/- | No
natural or | | | | DROTHER |
multipoint | | | | |
-------------------|--------------|----------|---------|----------|------------
Frame Relay | Point-to- | No | No | FULL/- | No
point-to-point | point | | | |
-------------------|--------------|----------|---------|----------|------------
Frame Relay | Point-to- | No | No | FULL/- | No
multipoint | multipoint** | | | |
-------------------+--------------+----------+---------+----------+------------
* If the OSPF network type on a Frame Relay network is changed to
BROADCAST, it will have a DR and BDR election and priority should
be set.
** The OSPF network tyhpe of point-to-multipoint is not the default
type of any interface. OSPF point-to-multipoint netowrks must be
statically configured.