Administering E1 and T1 Services
Remedying Trunk Down state
MAX Administration Guide
5-15
Table 5-6 summarizes Net/T1 diagnostic commands available in the Line Diag menu.
Testing the lines
The MAX unit can run a test (sometimes called a self-test) that uses two open channels to place
a call on one open channel and receive the call on another open channel. Use the Test
command, in the unit’s terminal-server CLI, to perform this test.
Before you begin you must check one setting in the Sys Config profile and two settings in the
Line N profile. Verify that you have not enabled the Use Trunk Grps parameter in the Sys
Config profile. The Call-by-Call parameter, in the Line Config menu’s Line N profile, specifies
the PRI service that the MAX uses when placing a call that is part of the test. Finally, verify
that the unit has two available channels. Warning 180 is caused by a missing channel on a
T1/PRI line. For example:
ERROR_CHAN_DISPLAY_STUCK 181
ERROR_NEW_CALL_NO_DISC_REQ 182
Remedying Trunk Down state
When the list of DO commands appears, many operations might not be not available if the
right profile is not selected. Because the MAX unit can manage a number of calls
simultaneously, you might need to select a specific Connection profile, Port profile, or Call
profile in order to see certain DO commands. For example, to dial from a Call profile or a
Table 5-6. Net/T1 diagnostic commands
Command
Purpose
Line LB1
Line LB2
Line LB3
Test Line 1, Line 2, or Line 3 (MAX 3000 only) in a T1 slot,
places a call from the MAX unit to itself over the WAN to deter-
mine the unit’s ability to initiate and receive calls and to diag-
nose the soundness of the digital access line and WAN.
Do not initiate these commands when a call is active on the line
because they disrupt data flow between the codecs connected to
either end of the network line.
Switch D Chan
Swaps status of the primary and secondary Non-Facility Associ-
ated Signaling (NFAS) D channels on T1 lines that use NFAS
signaling.
Clr Err1
Clr Err2
Clr Err3
Clears the user error event register of Line 1, Line 2, or Line3
(MAX 3000 only).
Clr Perf1
Clr Perf2
Clr Perf3
Clears all performance registers for Line 1, Line 2, or Line 3
(MAX 3000 only), restarts the current time period, and begins
accumulating new performance data.