OSPF

OSPF (Open Shortest Path First) is a standards-based link-state interior gateway protocol that uses Dijkstra’s shortest path first algorithm to calculate optimal routes through a network topology stored in a synchronized link-state database. It provides fast convergence, load balancing across equal-cost paths, and hierarchical network design through area-based segmentation that reduces routing overhead and improves scalability in large networks. OSPF supports advanced features including route summarization, authentication, traffic engineering extensions, and integration with MPLS for comprehensive enterprise and service provider routing solutions.

Diagram

Classes

routing (iosxe.devices.configuration)

Name	Type	Constraint	Mandatory	Default Value
ospf_processes	List	`[ospf_processes]`	No

ospf_processes (iosxe.devices.configuration.routing)

Name	Type	Constraint	Mandatory
id	Integer	min: `1`, max: `65535`	No
vrf	String		No
bfd_all_interfaces	Boolean	`true`, `false`	No
default_information_originate	Boolean	`true`, `false`	No
default_information_originate_always	Boolean	`true`, `false`	No
default_metric	Integer	min: `1`, max: `16777214`	No
distance	Integer	min: `1`, max: `255`	No
domain_tag	Integer	min: `1`, max: `4294967295`	No
mpls_ldp_autoconfig	Boolean	`true`, `false`	No
mpls_ldp_sync	Boolean	`true`, `false`	No
neighbors	List	`[neighbors]`	No
networks	List	`[networks]`	No
priority	Integer	min: `0`, max: `127`	No
router_id	String		No
shutdown	Boolean	`true`, `false`	No
summary_addresses	List	`[summary_addresses]`	No
areas	List	`[areas]`	No
passive_interface_default	Boolean	`true`, `false`	No
auto_cost_reference_bandwidth	Integer	min: `1`, max: `4294967`	No
passive_interfaces	List	`[passive_interfaces]`	No

neighbors (iosxe.devices.configuration.routing.ospf_processes)

Name	Type	Constraint	Mandatory
ip	IP		Yes
priority	Integer	min: `0`, max: `255`	No
cost	Integer	min: `1`, max: `65535`	No

networks (iosxe.devices.configuration.routing.ospf_processes)

Name	Type	Mandatory
ip	IP	Yes
wildcard	String	No
area	String	No

summary_addresses (iosxe.devices.configuration.routing.ospf_processes)

Name	Type	Constraint	Mandatory	Default Value
ip	IP		Yes
mask	IP		No

areas (iosxe.devices.configuration.routing.ospf_processes)

Name	Type	Constraint	Mandatory
id	String		Yes
authentication_message_digest	Boolean	`true`, `false`	No
nssa	Boolean	`true`, `false`	No
nssa_default_information_originate	Boolean	`true`, `false`	No
nssa_default_information_originate_metric	Integer	min: `0`, max: `16777214`	No
nssa_default_information_originate_metric_type	Integer	min: `1`, max: `2`	No
nssa_no_summary	Boolean	`true`, `false`	No
nssa_no_redistribution	Boolean	`true`, `false`	No

passive_interfaces (iosxe.devices.configuration.routing.ospf_processes)

Name	Type	Constraint	Mandatory	Default Value
interface_type	Choice	`Loopback`, `Vlan`, `GigabitEthernet`, `TwoGigabitEthernet`, `FiveGigabitEthernet`, `TenGigabitEthernet`, `TwentyFiveGigabitEthernet`, `FortyGigabitEthernet`, `HundredGigabitEthernet`	No
interface_id	String		No

Examples

iosxe:
  devices:
    - name: Device1
      configuration:
        routing:
          ospf_processes:
            - id: 100
              vrf: VRF-PROD
              bfd_all_interfaces: true
              default_information_originate: true
              default_information_originate_always: true
              default_metric: 10
              distance: 120
              domain_tag: 10
              auto_cost_reference_bandwidth: 10000
              neighbors:
                - ip: 192.168.1.2
                  priority: 10
                  cost: 100
                - ip: 192.168.2.2
                  priority: 5
                  cost: 50
              networks:
                - ip: 192.168.1.0
                  wildcard: 0.0.0.255
                  area: "0"
                - ip: 10.0.0.0
                  wildcard: 0.255.255.255
                  area: "1"
              router_id: 192.168.1.1
              shutdown: false
              summary_addresses:
                - ip: 10.0.0.0
                  mask: 255.0.0.0
                - ip: 172.16.0.0
                  mask: 255.240.0.0
              areas:
                - id: "1"
                  authentication_message_digest: true
                  nssa: true
                  nssa_default_information_originate: true
                  nssa_default_information_originate_metric: 100
                  nssa_default_information_originate_metric_type: 1
                  nssa_no_summary: true
                  nssa_no_redistribution: true
              passive_interface_default: true
              passive_interfaces:
                - interface_type: GigabitEthernet
                  interface_id: "0/0/1"
                - interface_type: Vlan
                  interface_id: "100"
            - id: 200
              bfd_all_interfaces: false
              default_metric: 20
              auto_cost_reference_bandwidth: 1000
              networks:
                - ip: 172.16.0.0
                  wildcard: 0.0.255.255
                  area: "0"
              router_id: 172.16.1.1
              passive_interface_default: false