![](https://pdfstore-manualsonline.prod.a.ki/pdfasset/f/bc/fbcab33c-556e-4c6f-9039-d8f6cc1e3076/fbcab33c-556e-4c6f-9039-d8f6cc1e3076-bg9b.png)
Version 6.2 155 December 2010
SIP Release Notes 3. Known Constraints
2. When the DS3 interface is not connected, a trunk under this DS3 interface can appear
in either LOF or AIS alarm state.
Product
MP-11x MP-124
Mediant 600 Mediant 1000
Mediant 800 MSBG Mediant 1000 MSBG
Mediant 2000
Mediant 3000/TP-6310 Mediant 3000 HA/TP-6310
Mediant 3000/TP-8410 Mediant 3000 HA/TP-8410
3. The DS3 External clock is not relevant for Asynchronous mapping of DS3 in OC3.
Product
MP-11x MP-124
Mediant 600 Mediant 1000
Mediant 800 MSBG Mediant 1000 MSBG
Mediant 2000
Mediant 3000/TP-6310 Mediant 3000 HA/TP-6310
Mediant 3000/TP-8410 Mediant 3000 HA/TP-8410
3.3.2 SDH Constraints
This release includes the following known SDH constraints:
1. TU-11 Byte Synchronous mapping is not supported.
Product
MP-11x MP-124
Mediant 600 Mediant 1000
Mediant 800 MSBG Mediant 1000 MSBG
Mediant 2000
Mediant 3000/TP-6310 Mediant 3000 HA/TP-6310
Mediant 3000/TP-8410 Mediant 3000 HA/TP-8410
2. For SDH/SONET and DS3 interfaces, if a trunk was in LOF alarm and the alarm was
then cleared, the trunk tends to revert to the RAI alarm for a short period before
moving to “no alarm” state.
Product
MP-11x MP-124
Mediant 600 Mediant 1000
Mediant 800 MSBG Mediant 1000 MSBG
Mediant 2000
Mediant 3000/TP-6310 Mediant 3000 HA/TP-6310
Mediant 3000/TP-8410 Mediant 3000 HA/TP-8410