7  Handling of unknown, unforeseen, and erroneous protocol data  Word‑p. 344

7.1  General

7.2  Message too short  Word‑p. 345

7.3  Unknown or unforeseen procedure transaction identity or EPS bearer identity

7.3.1  Procedure transaction identity

7.3.2  EPS bearer identity  Word‑p. 346

7.4  Unknown or unforeseen message type  Word‑p. 348

7.5  Non-semantical mandatory information element errors

7.5.1  Common procedures

7.5.2  EPS mobility management  Word‑p. 349

7.5.3  EPS session management

7.6  Unknown and unforeseen IEs in the non-imperative message part

7.6.1  IEIs unknown in the message

7.6.2  Out of sequence IEs

7.6.3  Repeated IEs  Word‑p. 350

7.7  Non-imperative message part errors

7.7.1  Syntactically incorrect optional IEs

7.7.2  Conditional IE errors

7.8  Messages with semantically incorrect contents

---