Avaya Troubleshooting Routers Instrukcja Naprawy Pobierz pdf (Strona 100)

Troubleshooting Routers

5-22

308656-14.00 Rev 00

Troubleshooting an FT1 Connection

This section assumes that you have isolated a problem to a fractional T1 (FT1)

connection. If not, refer to Chapter 2 to determine whether these instructions

apply to your problem.

To troubleshoot an FT1 connection:

Filter the log to display only messages from the FT1 entity running on the

slots experiencing the problem.

The Technician Interface command is as follows:

log -fftwid -eDS1E1 -s

<slot_no.>

Example

If you are filtering events from slot 1, enter the following command:

log -fftwid -eDS1E1 -s1

Check the following FT1 MIB entries by entering the following

Technician Interface commands:

get wfDrivers.14.0

get wfLinkModules.17.0

Or, use this Quick Get path: wfSoftwareConfig > wfLinkModules >

wfQssyncLoad.

Make sure that the Line Type and Line Coding supplied by the T1

provider match the associated settings in the FT1 configuration.

Make sure that the digital signal, level 0 (DS0) channels match at both the

router and the central office.

Watch the LEDs on the back of the FT1 module. If the Sync LED keeps

flashing, the line build out (LBO) is not in sync. This indicates impedance

or resistance on the line. Ask the T1 carrier if you should set it to long

haul or short haul, and configure the LBO parameter accordingly.

The Sync LED stays on when the framer is in sync with the carrier’s clock.

Note:

The ARN, AN, and ANH are single channel, so only one FT1 slot is

available on these modules.

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Avaya Troubleshooting Routers Instrukcja Naprawy Strona 100