Lucent Technologies Comcode 108678723 manual Diagnostics

DEFINITY ECS Release 8.2 ATM Installation,	Issue 1
Upgrades, and Administration 555-233-124	April 2000
6 Troubleshooting
Troubleshooting ATM-PNC	6-40

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-packscarrier), 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-packscarrier).

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.