19-8 Frame Relay Module 4.0 User Guide, Rev 01BECN, and DE bits will be displayed separately, then the remainder of eachframe will be displayed as data.E Allows specification of the length of frame relay data to display.F Stops the display from scrolling, or restarts if stopped.H Toggles the data format between ASCII and hexadecimal.L Monitors a specific LCN or DLCI. If packets are being exchanged, thedisplay will scroll them. To return to monitoring all LCNs/DLCIs, select Land enter 0 when prompted for an LCN/DLCI.M Monitors a different line; when prompted, enter the RLP and port numbers.P Allows tracing a selected SDLC polling address when you are performinglevel-2 tracing of an SDLC port. Selecting P will display the message:SDLC Station Address to filter (FF=All).Q Enables/disables display of X.25 QData packets.R Enables/disables display of X.25 Restart/Reset packets on an X.25 port, orLMI DLCI information on a frame relay port. (Only the sequence numberswill be displayed for Link Integrity Verification messages on a frame relayport.)S Updates and redisplays the "Display Selection is:....." message (shown above).T Enables/disables timestamps (hours:minutes:seconds:milliseconds) andlengths of packets.W Enables/disables interpretation of classified frames (LLC2 and LAPB).Y Enables/disables classification of RFC1490 frames by PID.2 Enables display of all LAPB, SDLC, and BSC level-2 frames (if appropriateto the port). (Note that you cannot monitor level-2 X.25 logical ports with thisoption—use option 3 instead.)3 Changes LAPB, SDLC, and BSC display (see 2 above) back to level 3 (i.e.,LAPB to X.25, SDLC to QLLC, BSCI to DSP, BSCB to DQ).[F3] Exits Line Monitor mode.Pending display of Data packets, the line monitor stores them in a buffer. If the displaycannot keep up with the line's data traffic, the buffer will overflow, and some packetswill not be displayed. When this occurs, the message Line Monitor Buffer is Fullappears. Buffer overflow does not impair data integrity or interfere with traffic.To exit the Line Monitor, press [F] to stop the display from scrolling (assuming it isscrolling), then [F3]. (Stopping the scrolling first is not always necessary, but allowsquicker access to the software when [F3] is pressed, especially from an async ter-minal.)
