Pseudonode
E538269
A pseudonode is a logical construct used in link-state routing protocols to represent a multi-access network segment as a single virtual node, simplifying topology representation and calculations.
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
Logical construct
ⓘ
Routing concept ⓘ |
| appearsIn |
IS-IS link-state database
ⓘ
OSPF link-state database ⓘ |
| associatedWith |
DIS
NERFINISHED
ⓘ
Designated Router ⓘ |
| belongsToModel | Link-state database ⓘ |
| category |
Computer networking
ⓘ
Network topology modeling ⓘ Routing ⓘ |
| createdBy |
Designated Intermediate System
ⓘ
Designated Router ⓘ |
| documentedIn |
IS-IS specifications
ⓘ
OSPF specifications ⓘ |
| existsWhen | A DR or DIS is elected on the segment ⓘ |
| hasProperty |
Does not correspond to a physical router
ⓘ
Represents a network segment rather than a device ⓘ |
| hasRelationshipType | Star topology around DR or DIS ⓘ |
| hasRole |
Topology abstraction
ⓘ
Virtual node ⓘ |
| improves |
Efficiency of SPF computation
ⓘ
Scalability of link-state protocols ⓘ |
| linkedTo | All routers on the multi-access segment ⓘ |
| modeledAs | Single virtual node in topology graph ⓘ |
| participatesIn | Shortest Path First computation ⓘ |
| purpose |
Reduce number of adjacencies in LSDB
ⓘ
Simplify SPF calculations ⓘ Simplify topology representation ⓘ |
| reduces | Number of pairwise adjacencies ⓘ |
| removedWhen | The multi-access segment no longer has a DR or DIS ⓘ |
| represents |
Broadcast network segment
ⓘ
Multi-access network segment ⓘ |
| usedFor |
Avoiding full mesh adjacencies on LANs
ⓘ
Modeling broadcast networks in LSDB ⓘ |
| usedIn |
IS-IS
NERFINISHED
ⓘ
Link-state routing protocol ⓘ OSPF NERFINISHED ⓘ |
| usedOn |
Broadcast multi-access network
ⓘ
NBMA network ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.