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Hi i have taken a SMS trace at STP side. I have seen 2 invoke forwardSM Packet and and check the OPCODE for both one of them have opcode 44 which is mt-forwardSM and one contain OPCODE 46 -mo-forwardSM . i want to know how this is possible in single invoke forwardSM packet.

asked 18 Jan '14, 22:40

Gaurav's gravatar image

Gaurav
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accept rate: 0%


It's definitely possible to see both in a single IP packet if both messages would be being sent to the same next-hop point code by the STP. Most, and virtually every implementation of SS7 over IP will have multiple SS7 messages, even for multiple applications (INAP, ISUP, MAP, etc.), aggregated into one IP packet if it's between the same two point codes (multi-streaming).

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answered 19 Jan '14, 20:18

Quadratic's gravatar image

Quadratic
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accept rate: 13%

edited 19 Jan '14, 20:24

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question asked: 18 Jan '14, 22:40

question was seen: 4,731 times

last updated: 19 Jan '14, 20:24

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