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Hi,

We are familiar with SCCP Reassembly layer in SS7 world (for XUDT/ XUDTS/ LUDT/ LUDTS etc). But, is there such a thing called TCAP Reassembly that is done within TCAP layer itself? We've encountered an example in which the SCCP layer type is UDTS with length < 254 and the length inside TCAP layer (ITU) is ~400 bytes.

Can anyone advice?

Hemda & Diana

asked 03 Apr '14, 00:55

Dianalab9's gravatar image

Dianalab9
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UDT is conection less -right? TCAP standard Q.773 has this comment The user should be aware of total message length limitations when using TCAP in the SS No. 7 connectionless environment.

A take this to mean that you can't send a TCAP message bigger than the max number of data in a UDT message, in an UDT message. I think segmentation has to take place in the transport layer.

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answered 03 Apr '14, 01:18

Anders's gravatar image

Anders ♦
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accept rate: 17%

ok, great, thank you!

(03 Apr '14, 01:38) Dianalab9
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question asked: 03 Apr '14, 00:55

question was seen: 2,685 times

last updated: 03 Apr '14, 01:38

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