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The M2PA (Message Transfer Part 2 Peer-to-Peer Adaptation Layer) is used to replace the [[MTP2 Layer|MTP2]] layer entirely. In contrast with [[M2UA]], M2PA does not include MTP2 links between the two point codes. However, it still requires the [[MTP3 Layer|MTP3]] layer.
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The ''Message Transfer Part 2 Peer-to-Peer Adaptation Layer'' (M2PA) is used to replace the [[MTP2 Layer|MTP2]] layer entirely. In contrast with [[M2UA]], M2PA does not include MTP2 links between the two point codes; however, it still requires the [[MTP3 Layer|MTP3]] layer.





Latest revision as of 09:30, 22 June 2023

The Message Transfer Part 2 Peer-to-Peer Adaptation Layer (M2PA) is used to replace the MTP2 layer entirely. In contrast with M2UA, M2PA does not include MTP2 links between the two point codes; however, it still requires the MTP3 layer.


The following figures show two different configurations of M2PA:


FIGURE 1:

m2pa_sg_setup.png


FIGURE 2:

m2pa_ipsp_setup.png


The first figure includes a setup featuring the signaling gateway as an STP, from the SS7 point of view.


TelcoBridges and M2PA

TelcoBridges supports M2PA as part of its SIGTRAN implementation.

Configuration

References

  • Article at Protocols.com
  • RFC 4165 Signaling System 7 (SS7) Message Transfer Part 2 (MTP2) - User Peer-to-Peer Adaptation Layer (M2PA)