DEFINITY ECS Release 8.2 Maintenance for R8.2csi
555-233-119 Issue 1
April 2000
Maintenance Objects
3-234ATM-TRK (Circuit Emulation Service Circuit Pack)
3
4. Perform ATM lo opback tests on the near-end A TM-TRK circuit pack
and on the far-end circ uit pack or ATM switch.
5. Check capacity and peak band width consumption for the ATM
span.
h. Error Type 771: the ATM switch is sending cells with unknown Virtual
Path-Identifier (VPI) and Virtual Channel-Identifier (VCI) addresses.
1. Make sure that the ATM-TRK circuit-pack address is ad ministered
identically on the ATM switch and the DEFINITY ECS.
i. Error Type 1281: Board major signals error (loss of high-level si gnal). The
far-end has detected a major problem in transmissions orig inating from
the ATM-TRK circuit pack. The possible Aux Data values for this software
counter are listed in Table 3-102.
If Then
The ATM-TRK circuit pack
fails the loopback test. The problem is in the ATM-TRK circuit
pack. Replace t he circuit pac k.
The far-end circuit p ack or
ATM switch fails the
loopback test.
The problem is in the far-end circuit pack
or ATM switch. Consult the circuit-pack
or ATM switch documentation for advice.
The equipment at each
end of the ATM span
passes the loopback test
The problem is somewhere in the ATM
span. Lack of bandwidth may be forcing
an intermediate ATM switch to drop cells.
If Then
The capacity of the
span is inadequate or
bandwidth consumption
is too high.
Reduce traffic on the DEFINITY switch to
ensure that it is using no more that its
subscribed bandwidth.