Partial Sequence number PDU is similar to CSNP but it contains subset information then the CSNP
This is used to request a specific lsp also in the case of point to point network this is also used for acknowledging a particular LSP as well.
CSNP contains the following:-
Remaining lifetime for the LSP
LSP ID
LSP sequence number and checksum value
The TLV present are authentication TLV and LSP ID TLV.
LSP ID TLV are the most essential part.
This is used to request a specific lsp also in the case of point to point network this is also used for acknowledging a particular LSP as well.
CSNP contains the following:-
Remaining lifetime for the LSP
LSP ID
LSP sequence number and checksum value
LSP ID TLV are the most essential part.
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