Delete PDP Context Response

These messages are sent from the GGSN to the controller or vice versa.

The table below lists the message attributes.
Table 1. Delete PDP context response attributes
Attribute Presence Type Description
  • Version
  • Protocol type
  • Spare bit
  • Extension header
  • Sequence number
  • N-PDU flag
  • Version - 1
  • PT - GTP (1)
  • Spare bit- 0
  • E - 0
  • S - 1
  • PN - 0
  • Version - Determines the version of the GTP protocol
  • Protocol type - Protocol discriminator between GTP (when PT is “1”) and GTP' (when PT is “0”)
  • Extension header - Indicates the presence of a meaningful value of the next extension header
  • Sequence number - Value of the sequence number
  • N-PDU Number - Value of the N-PDU number
Message Type M Integer Message type value is 21.
Length M Integer This attribute indicates the payload length in octets.
TEID M Integer This attribute identifies a tunnel endpoint in the receiving GTP-U or GTP-C protocol entity.
Sequence number O Integer This attribute is used as a transaction identity for signaling messages having a response message defined for a request message. This is the sequence number value, which is copied from the request to the response message header.
Cause M Integer This attribute indicates the acceptance or rejection of the corresponding request.
Error Indication O Integer These messages are sent from the GGSN to the controller. Error Indication lists the message attribute.