CSNP PDU
E538273
CSNP PDU (Complete Sequence Number PDU) is a type of IS-IS protocol message used to advertise a router’s full link-state database to its neighbors for synchronization.
All labels observed (1)
| Label | Occurrences |
|---|---|
| CSNP PDU canonical | 1 |
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf | IS-IS protocol message type ⓘ |
| abbreviationOf | Complete Sequence Number PDU ⓘ |
| associatedWith |
LSP PDU
ⓘ
PSNP PDU NERFINISHED ⓘ |
| category | routing protocol control message ⓘ |
| comparisonWith | PSNP PDU for partial updates ⓘ |
| contains |
LSP ID ranges
ⓘ
LSP checksums ⓘ LSP remaining lifetimes ⓘ LSP sequence numbers ⓘ |
| databaseView | represents complete set of LSPs known to sender ⓘ |
| definedIn | IS-IS specification ⓘ |
| direction | from designated router to all neighbors on LAN ⓘ |
| fullName | Complete Sequence Number PDU NERFINISHED ⓘ |
| granularity | complete database summary rather than individual LSPs ⓘ |
| layer | network layer control ⓘ |
| messageType | control plane ⓘ |
| operatesOn | link-state database ⓘ |
| originatedBy | Designated IS router on a LAN ⓘ |
| primaryFunction |
advertise full link-state database
ⓘ
database synchronization ⓘ |
| protocolFamily | link-state IGP ⓘ |
| reliabilityMechanism | sequence number and checksum comparison ⓘ |
| reliabilityRole | ensures all routers have same LSP set ⓘ |
| scope | link-state database for an IS-IS level ⓘ |
| sentTo | IS-IS neighbors ⓘ |
| standardType | ISO/IEC 10589 IS-IS PDU type ⓘ |
| synchronizationRole | triggers LSP requests from neighbors ⓘ |
| topologyRole | helps maintain consistent link-state topology view ⓘ |
| transmissionMode |
on-demand in some implementations
ⓘ
periodic ⓘ |
| triggeredActionOnReceiver | request missing or newer LSPs ⓘ |
| usedAtLevel |
IS-IS Level-1
NERFINISHED
ⓘ
IS-IS Level-2 ⓘ |
| usedBy | IS-IS router ⓘ |
| usedFor |
database consistency checking
ⓘ
detecting missing LSPs ⓘ detecting outdated LSPs ⓘ |
| usedIn |
IP routing with IS-IS
ⓘ
MPLS networks using IS-IS ⓘ |
| usedInLayer | link-state routing ⓘ |
| usedInProtocol | IS-IS NERFINISHED ⓘ |
| usedOn |
broadcast networks
ⓘ
multi-access LANs ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.