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DEFINITY ECS Release 8.2 ATM Installation,
Upgrades, and Administration
555-233-124
Issue 1
April 2000
Troubleshooting
6-40Troubleshooting ATM-PNC
6
Swapped routes, end system identifiers, or fiber
between two EPNs
Symptoms
■ All TN2305/TN2306 circuit packs are completely inserted.
■ The PPN cold starts both incorrectly connected EPNs as usual.
■ Both EPNs log many
WRONG BOARD INSERTED
errors (
list configuration
all
or
display circuit-packs
carrier
), providing the EPNs actually do have
different circuit packs configured in the same slots.
■ Some end stations may work if they are connected to the correct circuit
pack in the same slot on both EPNs. Otherwise, end stations on the PPN
have dial tone, while end stations on the EPNs do not.
■ All ATM switch diagnostic commands look good.
Diagnostics
1. Check log for
WRONG BOARD INSERTED
errors (
list configuration all
or
display circuit-packs
carrier
).
Action
1. Correct the ATM addresses (or swap fibers) on the ATM switch between
the incorrectly connected EPNs.
Swapped routes, end system identifiers, or fiber
between A- and B-side TN2305/TN2306s on EPN
Symptoms
■ The PPN establishes links to what it thinks is the active TN2305/TN2306
circuit pack on the EPN.
■ As normal, it reboots this TN2305/TN2306 circuit pack, and when
complete, it resets the EPN. When this happens, the active (instead of the
standby) TN2305/TN2306 circuit pack reboots, dropping the links.
■ To recover, the PPN re-establishes links to what it thinks is the active
TN2305/TN2306 circuit pack and the cycle repeats indefinitely.
Diagnostics
1. Type
status pnc
and press Enter. The screen shows both the A-side and
B-side
State of Health
field as
partially functional
.
Action
1. Correct the ATM addresses (or swap fibers) on the ATM switch between
the A and B side of the EPN.