Avaya 03-300430 User Manual
ISDN-SGR (ISDN-PRI Signaling Group)
Issue 1 June 2005
1443
Layer 2 Status Test (#647)
The Layer 2 Status Test checks the layer-2 status of the ISDN-PRI Signaling Channel (D
channel). This test will fail if there is a hardware failure or a facility problem, or if the primary and
secondary ISDN-PRI D channels are not administered correctly.
The Primary and Secondary Signaling Link Hardware tests (test 637 and 639) and the Remote
Layer 3 Query test (#637) will detect most problems caused by hardware failures or incorrect
administration. However, this layer-3 test cannot detect end-to-end transmission problems with
the standby D channel since layer-3 messages are not sent on the standby channel.
For systems supporting circuit packs, the SYS-LINK MO reports layer-2 ISDN-PRI D-channel
problems and the PI-LINK MO reports layer-2 ISDN-PRI D-channel problems (if the D channel
is connected to the Processor Interface circuit pack). However, for some systems, the PI-LINK
MO does not monitor the layer-2 status of the ISDN-PRI D channel, when it is connected to the
Packet Control circuit pack for the ISDN-PRI over PACCON feature.
The Layer 2 Query test is provided to detect Layer-2 D-Channel failures and generate an
associated Warning alarm independent of the hardware configuration used for the D channels.
channel). This test will fail if there is a hardware failure or a facility problem, or if the primary and
secondary ISDN-PRI D channels are not administered correctly.
The Primary and Secondary Signaling Link Hardware tests (test 637 and 639) and the Remote
Layer 3 Query test (#637) will detect most problems caused by hardware failures or incorrect
administration. However, this layer-3 test cannot detect end-to-end transmission problems with
the standby D channel since layer-3 messages are not sent on the standby channel.
For systems supporting circuit packs, the SYS-LINK MO reports layer-2 ISDN-PRI D-channel
problems and the PI-LINK MO reports layer-2 ISDN-PRI D-channel problems (if the D channel
is connected to the Processor Interface circuit pack). However, for some systems, the PI-LINK
MO does not monitor the layer-2 status of the ISDN-PRI D channel, when it is connected to the
Packet Control circuit pack for the ISDN-PRI over PACCON feature.
The Layer 2 Query test is provided to detect Layer-2 D-Channel failures and generate an
associated Warning alarm independent of the hardware configuration used for the D channels.
Table 519: Test #647 Layer 2 Status Query Test
Error
Code
Code
Test
Result
Result
Description / Recommendation
1132
ABRT
Internal system error:
The port location for the primary ISDN-PRI D channel is not known. This
condition should not be possible since an administered DS1 circuit pack or
media module must be specified when a Signaling Group is administered:
The port location for the primary ISDN-PRI D channel is not known. This
condition should not be possible since an administered DS1 circuit pack or
media module must be specified when a Signaling Group is administered:
1. Retry the command at 1-minute intervals up to 5 times.
1134
ABRT
Internal system error:
The associated DS1 circuit pack or media module is not administered. This
condition should not be possible since an administered DS1 circuit pack or
media module must be specified when a Signaling Group is administered.
The associated DS1 circuit pack or media module is not administered. This
condition should not be possible since an administered DS1 circuit pack or
media module must be specified when a Signaling Group is administered.
1. Retry the command at 1-minute intervals up to 3 times.
2500
ABRT
Internal system error:
1. Retry the command at 1-minute intervals up to 5 times.
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