Signaling Link, Signaling Linkset and Signaling Route

After reading basic concept of SS7, we can see the seven layer of SS7. The first three Layer SS7 has function to assure reliability which is known as Message Transfer Part. Here we have

  • Signalling Data Link : Physical, Electrical and Procedural Characteristics.
  • Signalling Link : Error Detection/Correction,Sequencing, Alignment, Link Synchronization and Flow control
  • Signalling Network : Messages and Procedures for Network Management. Responsible for end-to-end routing

The other layer part is 4th layer for user application which has :
SCCP (Signaling Connection Control Part) , TCAP (Transaction Capabilities Application Part ), ISUP (ISDN User Part), TUP (Telephone User Part ). Now I concernĀ  to discuss about first three layer element : Signalling link, Signalling Linkset and Signalling Route which is very important when you setup new network connection.

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