December 31, 1998
IGX Universal Switching Module (UXM)
The D4/AMI trunk will not come up on the UXM single T1 or UXM inverse multiplexing for ATM (IMA). It is, however, a configurable option when configuring the trunk.
Alternate mark inversion (AMI) line coding is not a supported feature in ATM. Because the UXM is standards-based, AMI is not supported.
The trunk reports an alarm, and does not pass traffic.
Use network trunk modules (NTMs) to connect D4/AMI trunks. Use ESF/B8ZS only for UXM T1 trunks.
To follow the bug ID link below and see detailed bug information, you must be a registered user and you must be logged in.
View CSCdk79433 (registered customers only)
For More Information
If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods: