Demand test descriptions and error codes - Avaya Support

Remote Layer 3 Query (#637)
Tests #639 and #636 check the health of the D-Chels and DS1/UDS1 Interface circuit packs or
DS1 Interface Media Modules. As shown in Figure 106: Remote Layer 3 Query Test Diagram
(#637), this test goes one step further by checking the communication path from the 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 106: Remote Layer 3 Query Test Diagram (#637)
For systems supporting circuit packs, Figure 106: 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 427: 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
Issue 5 May 2009 1429