Server Alarms - Avaya Support

Remote Layer 3 Query (#637)
processor, through the TDM/packet bus and DS1/UDS1 Interface circuit pack, or through the
Media Module, and on to the far-end switch or terminal adapter. A special ISDN message is
sent to the far-end switch or terminal adapter, which must respond within a specified amount of
time. This test is designed to ensure that the communication path between the switch and the
far end is up and operational, and that the two endpoints can properly exchange ISDN control
messages.
Figure 141: Remote Layer 3 Query Test Diagram (#637)
For systems supporting circuit packs, Figure 141: Remote Layer 3 Query Test Diagram (#637)
illustrates a UDS1 Interface circuit pack located in the PN. When the UDS1 board resides in a
PN, there is additional PNC hardware connecting the packet buses of the IPSI PN and PN.
Examples of such hardware are the Center Stage Switch and fiber-optic cables.
This test runs on ISDN-SGR (ISDN-PRI Signaling Group).
Table 522: Remote Layer 3 Query (#637) 1 of 3
Error
Code
Test
Result
PROCESSOR
(UN331)
PKTINT
UDS1
CIRCUIT
PACKET
INTERFACE
PACK CIRCUIT
BUS
PACK
(TN1655)
Description / Recommendation
TN464C/D
TO FAR-END
PROCESSOR
ABORT Internal system error.
1. Retry the command a 1-minute intervals up to 5 times.
1 of 3
Communication Manager Release 5.0 Issue 4 January 2008 1781