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Node categories
Multiple switching capable nodes: simplex versus hybrid
A simplex node
single switching capability per interface, but can comprise of interfaces with distinct switching capabilities
advertises several TE Links each with a single SC value as part of its ISCD sub-TLVs.
A hybrid node
multiple switching capabilities per interface, and interfaces of the same hybrid node may have different multiple switching capabilities
advertises at least one TE Link containing multiple ISCDs with different SC values (at least one per supported SC value per interface).
TDM
PSC
PPT Version