ESME_RINVTLVVAL in SMPP

What is ESME_RINVTLVVAL?

ESME_RINVTLVVAL (Error Code: 0x000000C4) is an SMPP error indicating that a Tag-Length-Value (TLV) parameter contains an invalid or unexpected value.

Possible Causes

  • The TLV value does not conform to the expected format or range.
  • An incorrect data type is used for the TLV value.
  • A reserved or unsupported value is specified in the TLV field.
  • Encoding errors or corruption in the TLV data.

When Does It Happen?

This error occurs when an ESME sends an SMPP request containing a TLV parameter whose value is invalid or does not match the expected format defined in the SMPP specification.

Example SMPP PDU Transaction

Request PDU (submit_sm) Sent by ESME with an Invalid TLV Value

00000040 (Length)
00000004 (Command ID for submit_sm)
00000000 (Command Status)
00000001 (Sequence Number)
00 (Service Type)
01 (Source Address TON - International)
01 (Source Address NPI - ISDN)
31323334 00 (Source Address: "1234")
01 (Destination Address TON - International)
01 (Destination Address NPI - ISDN)
39383736 00 (Destination Address: "9876")
00 (ESM Class)
00 (Protocol ID)
00 (Priority Flag)
00000000 (Schedule Delivery Time - Not Set)
00000000 (Validity Period - Not Set)
00 (Replace If Present Flag)
00 (Sm Default Msg ID)
0005 (Message Length)
48656C6C 6F (Message: "Hello")
0421 0002 FFFF (Invalid TLV: Value 0xFFFF is not allowed)

Response PDU (submit_sm_resp) with ESME_RINVTLVVAL

00000010 (Length)
80000004 (Command ID for submit_sm_resp)
000000C4 (Command Status - ESME_RINVTLVVAL)
00000001 (Sequence Number)

Issue: The TLV (Tag 0x0421) contains an invalid value (0xFFFF), which is not within the acceptable range.

How to Solve It?

  • Check the SMPP specification for valid values for the TLV parameter.
  • Ensure the value is within the acceptable range and correctly formatted.
  • Use the correct data type and encoding for the TLV field.
  • Validate the TLV data before sending the request.
  • Use an SMPP simulator or protocol analyzer to inspect the PDU structure.

Correcting the TLV value to match the allowed range will resolve this issue.

More information