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Difference between revisions of "MTP1 Layer"

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The MTP1 layer is the physical layer and is responsible of the actual [[HDLC]] framing of [[SS7]] packets (usually called [[MSU]] – Message signaling unit). Beside the transmission and reception of frames, calculation of [[CRC]], this layer is also responsible to monitor and report the quality of the link based on the number of failures detected (CRC errors, unexpected packets).  Using specially formatted packets ([[LSSU]] and [[FISU]]), this layer makes sure the communication with the peer side is always valid and synchronized, even when the communication link is supposedly idle (no MSU being sent).
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The MTP1 layer is the physical SS7 layer and is responsible for the [[HDLC]] framing of [[SS7]] packets (usually called [[MSU]] – Message signaling unit). Besides the transmission and reception of frames and the calculation of [[CRC]], this layer is also responsible for monitoring and reporting the quality of the link based on the number of failures detected (CRC errors, unexpected packets).  Using specially formatted packets ([[LSSU]] and [[FISU]]), this layer ensures that the communication with the peer side is always valid and synchronized, even when the communication link is supposedly idle (no MSU being sent).
  
  
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[[category:Glossary]]
 
[[category:Glossary]]
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Latest revision as of 13:49, 22 March 2018

The MTP1 layer is the physical SS7 layer and is responsible for the HDLC framing of SS7 packets (usually called MSU – Message signaling unit). Besides the transmission and reception of frames and the calculation of CRC, this layer is also responsible for monitoring and reporting the quality of the link based on the number of failures detected (CRC errors, unexpected packets). Using specially formatted packets (LSSU and FISU), this layer ensures that the communication with the peer side is always valid and synchronized, even when the communication link is supposedly idle (no MSU being sent).


TelcoBridges and MTP1

TelcoBridges supports MTP1 as part of its SS7 signaling stack.