8. Troubleshooting

Viewing Captured Packets from the Menu-Driven User Interface

The twelve most recent LMI events are stored in the trace log. Once the capture buffer or trace log is full, the oldest packets are overwritten. To view the most recently captured packets using the menu-driven user interface:

LMI Packet Capture UtilityDisplay LMI Trace Log

LMI Trace Log Example

main/control/lmi_capture/display_log

 

 

9128-II

Device

Name: Node A

 

 

5/26/2000 23:32

 

LMI TRACE

LOG

Page 1 of 3

Packets Transmitted to Net1-FR!

Packets Received from Net1-FR1

LMI

Record #1 at 0 s

 

 

 

 

 

Status Enquiry Message, 13 bytes

 

 

 

 

 

LMI Type is Standard on DLCI 1023

 

 

 

 

 

Sequence Number Exchange

 

 

 

 

 

Send Seq #181, Rcv Seq #177

 

 

 

 

 

 

LMI

Record #2 at 0 s

 

 

 

 

 

Status Enquiry Message, 13 bytes

 

 

 

LMI Type is Standard on DLCI 1023

 

 

 

Sequence Number Exchange

 

 

 

Send Seq #181, Rcv Seq #177

--------------------------------------------------------------------------------

Ctrl-a to access these functions, ESC for previous menu

MainMenu Exit

Refresh

PgUp PgDn

 

Select Refresh to update the screen with the twelve most recently collected LMI messages.

he following information is provided:

The internal LMI record number assigned to the packet (1–8000), and the amount of time the utility was running when the packet was captured.

The maximum amount of time displayed is 4,294,967 seconds (s), which is reset to 1 second when this amount of time is exceeded.

The type of message, either Status or Status Enquiry, from the captured packet, and the number of bytes in the packet.

The LMI Type identified in the Protocol Discriminator portion of the captured packet, and the DLCI number for the packet.

The type of information contained in the captured packet, either Sequence

Number Exchange or Full Status Report.

The send and receive (rcv) sequence numbers from the captured packet

T(0–255).

On the Packets Received side of the screen, PVC status for up to ten DLCIs can be shown. It shows the DLCI number, its active bit status, and if Standard LMI is running, the DLCI’s CIR value.

8-6

September 2002

9128-A2-GB20-80

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Paradyne 9128-II, CSU, DSU, 9126-II manual LMI Packet Capture Utility→ Display LMI Trace Log, LMI Trace Log Example