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Multiple OSPF Processes

visitor68
Level 4
Level 4

Why would someone run multiple OSPF processes on the same router?

What are the implications?

Are there two SEPARATE databases that are established, one for each process?

Are these processes totally isolated?

What about the RIB? Are there effectively separate routing tables?

lets say a route is learned through both OSPF processes, what happens then....?

Another quick question:

router ospf 499

router-id 10.199.254.38

log-adjacency-changes

auto-cost reference-bandwidth 1000000

nsf

area 1 authentication message-digest

redistribute static metric-type 1 subnets route-map into-ospf

network 10.195.48.40 0.0.0.7 area 1

network 10.195.48.48 0.0.0.15 area 1

network 10.199.254.38 0.0.0.0 area 1

network 99.207.255.8 0.0.0.0 area 1

!

router ospf 599

log-adjacency-changes

auto-cost reference-bandwidth 1000000

nsf

area 0 authentication message-digest

area 2 authentication message-digest

redistribute static

passive-interface default

no passive-interface GigabitEthernet4/1

no passive-interface Vlan98

no passive-interface Vlan99

network 10.195.48.8 0.0.0.3 area 2

network 10.195.48.32 0.0.0.7 area 2

network 10.195.48.248 0.0.0.7 area 0

network 10.195.49.0 0.0.0.127 area 2

network 10.195.50.0 0.0.0.127 area 2

network 10.195.64.0 0.0.15.255 area 2

network 10.195.80.0 0.0.0.255 area 2

<b>interface GigabitEthernet4/1

ip address 10.195.48.53 255.255.255.240</b>

Notice the IP address of this interface. OSPF 499 is running OSPF on this interface (see the network statement), yet the interface is un-passived out in OSPF599....why is that? Typos?

Thanks

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