The [t81] command set is available on TX 4000 Series boards.
T8100 commands provide a direct interface to the H.100/H.110 switching hardware, which is controlled through the T8100 chip on the TX board. These commands help you analyze TDM connections established with the tdmcfg utility, the txconfig utility, the TX SWI library, and the TDM libraries, including commands entered through the t1demo application.
This topic presents:
[t81] commands |
Description |
check |
Checks received patterns across the stream range. Used to test H.100/H.110 or T1/E1 connectivity to another TX board. Refer to TDM pattern test commands. |
ctldb |
Displays the Ctrl db. |
fallback |
Forces into clock fallback mode or returns to normal. |
info |
Displays top-level T8100 control information. |
local |
Displays all currently defined local connections. |
looptrunks |
Loops all T1/E1 trunks back on themselves. |
reflect |
Reflects timeslots across a given stream range. Used to test H.100/H.110 or T1/E1 connectivity to another TX board. Refer to TDM pattern test commands. |
spread |
Spreads patterns across a stream range. Used to test H.100/H.110 or T1/E1 connectivity to another TX board. Refer to TDM pattern test commands. |
stats |
Displays statistics on the T8100. |
status |
Displays the current status of the T8100. |
vreflect |
Verifies CAM (content addressable memory) definitions (reflecting timeslots). Used to test H.100/H.110 or T1/E1 connectivity to another TX board. Refer to TDM pattern test commands. |
vspread |
Verifies CAM definitions (spreading patterns). Used to test H.100/H.110 or T1/E1 connectivity to another TX board. Refer to TDM pattern test commands. |
Use the following [t81] commands to verify TDM (H.100/H.110 or T1/E1 connectivity) between two TX boards:
Command |
Description |
check |
Checks received patterns across a stream range using the following syntax: check bus min stream [max stream [ts delta [pattern]]] |
reflect |
Reflects timeslots across a stream range using the following syntax: reflect bus min stream [max stream [ts delta]] |
spread |
Spreads patterns across a stream range using the following syntax: spread bus min stream [max stream [ts delta [pattern]]] |
vreflect |
Verifies CAM definitions (reflecting timeslots) using the following syntax: vreflect bus min stream [max stream [ts delta]] |
vspread |
Verifies CAM definitions (spreading patterns) using the following syntax: vspread bus min stream [max stream [ts delta [pattern]]] |
The following parameters apply to each command:
Parameter |
Description |
bus |
Valid values: H = H.100/H.110 bus (resource direction). N = H.100/H.110 bus (network direction). L = LOCAL bus. |
min stream |
Minimum stream number (paired with min+1 for H.100/H.110 bus). |
max stream |
Maximum stream number (paired with max-1 for H.100/H.110 bus). Default: min stream+1. |
ts delta |
Delta used to reach next timeslot. Default: 1. Note: Each time the stream is incremented (by 2), the next timeslot is reset to 0. |
pattern |
Constant pattern to send or expect. If not specified, then a range of patterns is used. |
Follow this procedure to use the pattern test commands:
Step |
Action |
1 |
Connect two TX boards with either an H.100/H.110 cable or a T1/E1 crossover cable. |
2 |
Download a TDM configuration file to each board specifying TDM clocking configuration (and T1 or E1 configuration if testing T1/E1). |
3 |
On one TX board, use the reflect command to define a set of connections that reflect patterns received over H.100/H.110 (or T1/E1) and transmitted over H.100/H.110 (or T1/E1). |
4 |
On the other board, use the spread command to spread a set of outbound patterns over the interface being tested. |
5 |
Use the check command on the same TX board that the spread command was entered on to verify that the proper reflected patterns are received. |
6 |
Use the vreflect and vspread commands to verify that all connections made using the corresponding command (reflect or spread) are actually in the TDM switching control database. |