DEFINITY ECS Release 8.2 Maintenance for R8.2csi
555-233-119 Issue 1
April 2000
Maintenance Objects
3-151ATM-EI (Expansion Interface Circuit Pack)
3
The problem is most likely
not
on the ATM-EI circuit pack reporting the
errors, but it could b e due to one or more of the following reasons:
■The fiber is not snugly connec ted to either the board or the ATM
switch.
■The PN packet bus is corrupting the cells. See Packet maintenance
objects (Aux Data 35 only).
■The fiber between the ATM switch and the ATM-EI is too long
(greater than 2km for multimode fib er). Use loopback to see if the
fiber is corrupting the cells.
■Some other ATM-EI board is not receiving the cells prop erly.
■The intervening ATM switch is dropping the ATM cells due to a
shortage of bandwid th, or the DEFINITY is using more than the
subscribed bandwidth.
Error Type 771: the ATM switch is sending cells with unknown VPI and VCI
address (wrong connec tion).
1. Ensure that the ATM-EI board address on the ATM switch matches
the ATM-EI (ATM) address on the DEFINITY side.
i. Error Type 1024-1151: These errors represent problems detected by the
ATM-EI board in response to SETUP and ADDPARTY requests from
software.
■The Error Types and descriptions are in Table 3-63:
■Aux Data values represent port network and angel numbers and
are in Table 3-64.
Table 3-63. ATM Error Types 1024 - 1151
Error
Type Description General problem
1024 Next node unreachable ATM protocol stack on
ATM-EI circuit pack
1056 DTL Transit not my node ID
Continued on next page