Eicon Networks C21 Przewodnik Instalacji Pobierz pdf (Strona 172)

Analyzing Data: ECMODULE TRACE 172

Trace Filter

The trace filter lets you tailor the trace to examine certain groups of elements

within the data stream. The trace filter is one byte long, with each bit filtering

a specific type of protocol element. When you filter an element, you hide

everything but that element. The filter is a two-digit hexadecimal number.

Note

There are no Trace Filters available for the LAPD and Q931 protocols.

Protocol Filter Description

Frame Relay (FRELAY) 01h Data frames

02h LMI frames

HDLC Frame 01h I-frames

02h RR frames

04h RNR, REJ frames

08h FRMR, SABM, DISC, UA frames

10h All other frames

SDLC 01h I Frames

02h RR Frames

04h RNR and REJ Frames

08h FRMR, SABM, DISC, UA, and DM Frames

10h XID and all other Frames

X.25 Packet 01h Data packets

02h RR, RNR packets

04h RESET, INTERRUPT packets

08h CALL, CLEAR packets

10h All other packets

SNA Frames 01h LU-LU FMD

02h LU-LU DFC

04h LU-LU SC

08h SSCP-LU FMD

10h SSCP-LU SC

20h SSCP-Node Type FMD

40h SSCP-Node Type SC

IDLC Frames 01h Supervisory format Frames

02h Unnumbered format Frames

04h Information transfer format Frames

1 2 ... 167 168 169 170 171 172 173 174 175 176 177 ... 214 215

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Eicon Networks C21 Przewodnik Instalacji Strona 172