OSPF
E123434
OSPF (Open Shortest Path First) is a widely used interior gateway routing protocol that employs link-state information to determine the most efficient path for data within an IP network.
All labels observed (5)
| Label | Occurrences |
|---|---|
| OSPF canonical | 9 |
| OSPFv2 | 2 |
| Open Shortest Path First | 2 |
| Dijkstra shortest path first | 1 |
| Link State PDU | 1 |
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
interior gateway protocol
ⓘ
link-state routing protocol ⓘ routing protocol ⓘ |
| administrativeDistanceCisco | 110 ⓘ |
| authenticationMethods |
cryptographic authentication
ⓘ
null authentication ⓘ simple password ⓘ |
| backboneAreaID | 0.0.0.0 ⓘ |
| convergenceType | fast ⓘ |
| definedInRFC |
RFC 2328
ⓘ
RFC 5340 ⓘ |
| designGoal | efficient shortest-path routing within an IP network ⓘ |
| fullName |
OSPF
self-linksurface differs
ⓘ
surface form:
Open Shortest Path First
|
| hasSpecialArea | backbone area ⓘ |
| IPProtocolNumber | 89 ⓘ |
| IPv4Variant |
OSPF
self-linksurface differs
ⓘ
surface form:
OSPFv2
|
| IPv6Variant | OSPFv3 ⓘ |
| loopPreventionMethod | link-state database and SPF calculation ⓘ |
| metricType | cost ⓘ |
| operatesAtLayer | network layer ⓘ |
| replaces | RIP in many enterprise networks ⓘ |
| routerTypes |
area border router (ABR)
ⓘ
autonomous system boundary router (ASBR) ⓘ backbone router ⓘ internal router ⓘ |
| routingDomainType | intra-domain ⓘ |
| scope | single autonomous system ⓘ |
| standardizedBy |
Internet Engineering Task Force
ⓘ
surface form:
IETF
|
| supports |
IPv4
ⓘ
IPv6 ⓘ VLSM ⓘ classless inter-domain routing (CIDR) ⓘ |
| supportsAuthentication | yes ⓘ |
| supportsEqualCostMultipath | yes ⓘ |
| supportsHierarchicalRouting | yes ⓘ |
| supportsNSSA | yes ⓘ |
| supportsStubAreas | yes ⓘ |
| usesAlgorithm |
Dijkstra
ⓘ
surface form:
Dijkstra shortest path first algorithm
|
| usesConcept |
areas
ⓘ
autonomous system ⓘ |
| usesLSA |
AS-external LSA
ⓘ
network LSA ⓘ router LSA ⓘ summary LSA ⓘ |
| usesMulticastAddress |
224.0.0.5
ⓘ
224.0.0.6 ⓘ |
| usesNeighborDiscovery | hello protocol ⓘ |
| usesPort | no TCP or UDP port (protocol number 89) ⓘ |
| usesRoutingType | link-state ⓘ |
| usesTransportProtocol | IP ⓘ |
Referenced by (15)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
OSPFv2
this entity surface form:
Open Shortest Path First
this entity surface form:
OSPFv2
this entity surface form:
Link State PDU
subject surface form:
IS-IS
this entity surface form:
Dijkstra shortest path first
subject surface form:
IS-IS
subject surface form:
Cisco NX-OS