Service-Specific Coordination Function for Signaling at the Network Node Interface (SSCF-NNI)

SSCF-NNI is used to transport MTP3-b PDUs over ATM using the service of SSCOP.


XXX - add a brief description of SSCF-NNI history

Protocol dependencies

  • SSCOP: SSCF-NNI is carried over SSCOP links.

Example traffic

XXX - Add example decoded traffic for SSCF-NNI here (as plain text or Wireshark screenshot).


The SSCF-NNI dissector is fully functional.

Preference Settings

The SSCF-NNI dissector has no preferences. XXX - Actually it should because the TTC (Japanese) version of SSCF-NNI allows the option to include an additional octet that includes the message priority.

Example capture file

XXX - Add a simple example capture file to the SampleCaptures page and link from here (see below). Keep this file short, it's also a good idea to gzip it to make it even smaller, as Wireshark can open gzipped files automatically.

Display Filter

A complete list of SSCF-NNI display filter fields can be found in the display filter reference

Show only the SSCF-NNI based traffic:


Capture Filter

You cannot directly filter SSCF-NNI packets while capturing.

External links

  • SSCF-NNI is specified in ITU Q.2140.


Imported from on 2020-08-11 23:25:50 UTC