Link Access Procedures on the D channel (LAPD), specified in ITU-T Q.920 and ITU-T Q.921, is the second layer protocol on the ISDN protocol stack in the D channel.
It is heavily based on HDLC.
The LAPD dissector is fully functional.
- Use GSM SAPI values. Default OFF.
- RTP payload type for embedded LAPD. Default 0, that means LAPD dissection in RTP packets is disabled.
A complete list of LAPD display filter fields can be found in the display filter reference
Show only the LAPD based traffic:
You cannot directly filter LAPD protocols while capturing. XXX - is this true?
Imported from https://wiki.wireshark.org/LAPD on 2020-08-11 23:15:55 UTC