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DEFINITY ECS Release 8.2 ATM Installation,
Upgrades, and Administration
555-233-124
Issue 1
April 2000
Troubleshooting
6-22Troubleshooting ATM-PNC
6
Troubleshooting interoperability
This section covers the following ATM interoperability topics:
■ Physical connections—Checks for correct ATM installation and
configuration
■ Administration—Checks for correct DEFINITY ECS and ATM switch
administration
■ TN2305/TN2306 circuit pack—Checks LED status, circuit pack insertion,
and demand tests
■ ATM signaling architecture—Checks the interoperability between the
DEFINITY ECS switch and the ATM switch
Because Lucent offers a variety of ATM switches, this discussion suggests
general rather than specific diagnostics.
Physical connections
Has the ATM switch been installed and configured correctly?
Diagnostics
■ Is the ATM switch powered up?
■ If you are administering the ATM switch through a locally attached
console, is there a local console terminal connected to the console port on
the ATM switch processor circuit pack with the correctly pinned RS232
serial cable?
■ If you are administering the ATM switch through telnet over the Ethernet, is
there an Ethernet drop plugged into the Ethernet port on the ATM switch
processor board? (Note that a few ATM switch commands are only
permitted over the local console terminal.)
12. Escalate if necessary If the DS1 circuit pack tests OK, go to step 13.
If step 11 still fails, escalate to Tier 3 or replace the splitter.
13. Release the circuit
pack
Release the DS1 circuit pack (release board
UUCSS
).
14. Verify active
synchronization
source
Verify that the designated DS1 circuit pack is now the
active sync source (status synchronization).
Table 6-9. Troubleshooting 401A/402A/403A synchronization — Continued
√ Step Action Description
Continued on next page