To start OSPF process you have to specify the OSPF router. As of this
writing, ospfd does not support multiple OSPF processes.
| router ospf | Command |
| no router ospf | Command |
Enable or disable the OSPF process. ospfd does not yet
support multiple OSPF processes. So you can not specify an OSPF process
number.
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| ospf router-id a.b.c.d | OSPF Command |
| no ospf router-id | OSPF Command |
| ospf abr-type type | OSPF Command |
| no ospf abr-type type | OSPF Command |
| type can be cisco|ibm|shortcut|standard More information regarding the behaviour controlled by this command can be found in draft-ietf-ospf-abr-alt-05.txt. Quote: "Though the definition of the Area Border Router (ABR) in the OSPF specification does not require a router with multiple attached areas to have a backbone connection, it is actually necessary to provide successful routing to the inter-area and external destinations. If this requirement is not met, all traffic destined for the areas not connected to such an ABR or out of the OSPF domain, is dropped. This document describes alternative ABR behaviors implemented in Cisco and IBM routers." |
| ospf rfc1583compatibility | OSPF Command |
| no ospf rfc1583compatibility | OSPF Command |
| This rfc2328, the sucessor to rfc1583, suggests according to section G.2 (changes) in section 16.4 a change to the path preference algorithm that prevents possible routing loops that were possible in the old version of OSPFv2. More specificly it demands that inter-area paths and intra-area path are now of equal preference but still both preferred to external paths. |
| passive interface interface | OSPF Command |
| no passive interface interface | OSPF Command |
| timers spf <0-4294967295> <0-4294967295> | OSPF Command |
| no timers spf | OSPF Command |
| refresh group-limit <0-10000> | OSPF Command |
| refresh per-slice <0-10000> | OSPF Command |
| refresh age-diff <0-10000> | OSPF Command |
| auto-cost refrence-bandwidth <1-4294967> | OSPF Command |
| no auto-cost refrence-bandwidth | OSPF Command |
| network a.b.c.d/m area a.b.c.d | OSPF Command |
| network a.b.c.d/m area <0-4294967295> | OSPF Command |
| no network a.b.c.d/m area a.b.c.d | OSPF Command |
| no network a.b.c.d/m area <0-4294967295> | OSPF Command |
This command specifies the OSPF enabled interface. If the interface has
an address of 10.0.0.1/8 then the command below provides network
information to the ospf routers
router ospf
network 10.0.0.0/8 area 0
the network command's mask length should be the same as the interface
address's mask.
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