HP 7102dl - ProCurve Secure Router Configuration Manual page 768

IP Routing—Configuring RIP, OSPF, BGP, and PBR
Configuring OSPF
Parameter OSPF Specification
Information in • LSAs for local area—connection to a peer:
updates
– peer's router ID
– metric
• LSAs for local area—connection to a network:
– network address
– metric
• Link summaries (ABRs)
• External routes (ASBRs)
The routers that • Connecting routers in a point-to-point network
send and send each other LSAs and hellos.
receive LSAs
• Routers in a multi-access network send LSAs
and other
to a DR and BDR.
messages
• DRs flood LSAs to other routers in the multi-
access network.
• ABRs send link summaries for the range of
networks in an area.
• ASBRs send external routes to routers in non-
stub areas.
• OSPF interfaces in different areas do not
exchange LSAs.
• Stub routers do not receive external routes.
• Routers reject unauthorized OSPF packets.
Metric • Bandwidth
computation
• ToS (rarely used)
15-42
Refer to Table 15-7 for a summary of how OSPF manages route exchanges and
what parameters you can configure for the protocol.
Table 15-7. OSPF Parameters
Configuration Considerations
• Setting the router ID (page 15-44)
• Advertising a network (page 15-45)
• Configuring link summaries for the range of
networks in an area (ABR) (page 15-47)
• Generating a default route (ASBR) (page 15-54)
optional:
• Altering default metrics (page 15-60)
• Setting an interface's cost (page 15-56)
• Setting the reference bandwidth that a router
uses to compute cost (page 15-56)
• Configuring route summaries for external routes
(ASBR) (page 15-55)
• Setting the cost for default routes sent into stub
areas (page 15-46)
• Enabling OSPF on an interface (page 15-46)
• Establishing an area (page 15-45)
• Defining a stub area (page 15-46)
• Configuring link summaries for an area (ABR)
(page 15-47)
• Generating a default route (ASBR) (page 15-54)
Optional:
• Changing a router's priority for being elected DR
(page 15-60)
• Configuring OSPF authentication (page 15-62)
Optional:
• Setting an interface's cost and bandwidth (page
15-56)
• Setting the reference bandwidth a router uses
to compute cost (page 15-56)
• Setting timers for the router's SPF calculations
(page 15-60)