Avaya Communication Manager controlled maintenance
MG-DS1 (DS1 Interface Media Module)
Maintenance of the Avaya G350 Media Gateway
177
June 2004
Media Module Administration and Options
The DS1 configuration for each Media Module is administered on the
DS1 Media Module
form.
Bit
Rate
is set to 1.544 Mbps for 24-channel systems, and 2.048 Mbps for 32-channel systems.
Country
Protocol
is used to drive layer 3 protocol decisions based on PRI specifications specific to a given
country (not those related to specific features). This Country Protocol is independent of the
Country
parameter administered on the
country-options system-parameters
form. Different MG-DS1
Media Modules may be administered with different Country Protocols, allowing the switch to act as a
gateway between two incompatible ISDN-PRI implementations (for example, between two different
countries). US systems use country protocol 1.
Echo cancellation is administered in part by administering an echo cancellation plan. Currently, DS1
Echo Cancellation Plan 4 is the default plan.
CAUTION:
The DS1 Echo Cancellation Plan 1 uses a 96ms echo tail and introduces 6db of loss for
additional cancellation. Because no digital facilities have ever introduced loss, this is an
unexpected side effect of the Plan 1 echo cancellation feature. Since services personnel
might not expect to find it there, services might try to change the loss plan to compensate,
which can lead to other problems.
Error Log Entries and Test to Clear Values
Table 105: DS1 Interface Media Module Maintenance Error Log Entries 1 of 3
Error
Type
Aux
Data
Associated Test
Alarm
Level
On/Off
Board
Test to Clear Value
0*
0
Any
Any
Any
test board GGGVS
1(a)
0
Media Gateway
removed or SAKI
Test (#53)
MIN/WRN**
ON
18(b)
0
busyout board
GGGVSpp
WARNING
OFF
release board GGGVS
23(c)
0
WARNING
OFF
add ds1 GGGVS
125(d)
none 3
None
MIN/WRN**
ON
257
65535
Control Channel
Loop Test (#52)
MINOR
ON
test board GGGVS l r 20
257(e)
Any
None
513(f)
Any
MIN/WRN**
ON
514(g)
46086
MIN/WRN**
ON
769(h)
46085
MIN/WRN**
ON
770(i)
46096
MIN/WRN**
ON
1 of 3
Summary of Contents for Media Gateway G350
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Page 16: ...About this book Sending us comments 16 Maintenance of the Avaya G350 Media Gateway June 2004 ...
Page 284: ...Monitoring Extended keepalive 284 Maintenance of the Avaya G350 Media Gateway June 2004 ...