Introduction: In the MSC pool networking, after the IP-based A/Iu interface is employed, the resources of the A/Iu interface are shared by the MSC servers in the pool. The MSC server is unaware of the resource usage of the A/Iu interface between each MGW and the BSC/RNC, and unable to select load-sharing UMG8900s based on the resource usage of the UMG8900s. Therefore, thenumber of virtual IP CICs of the A/Iu interface must be set on the UMG8900, and the UMG8900 reports the number of available IP CICs to the MSC servers in the pool in real time.

 

Benefits: In the deployment of the MSC pool networking, the UMG8900 can balance the use of the IP resources of the A/Iu interfaces among the MGWs.

 

Description: In the MSC pool networking, after the IP-based A/Iu interface is employed, the resources of the A/Iu interface are shared by the MSC servers in the pool. The MSC server is unaware of the resource usage of the A/Iu interface between each MGW and the BSC/RNC, and unable to select load-sharing UMG8900s based on the resource usage of the UMG8900s. Therefore, the number of virtual IP CICs of the A/Iu interface must be set on the UMG8900, and the UMG8900 reports the number of available IP CICs to the MSC servers in the pool in real time.

 

This feature provides the following functions:

 

• The MSC servers can select the UMG8900s with more available resources based on the number of IP CICs reported by each UMG8900 in the pool, thus balancing resources.
• The MSC server can restrict the number of IP calls on the A/Iu interface in the case that the voice quality may degrade due to insufficient bandwidths.

 Dependency:

This feature requires the cooperation of the MSC server.

This feature is applied to the MSC pool networking.

This feature is applicable to the VMSC.

This document is very well done

Perfectly described the IP CIC for A/Iu Interface here. thanks for sharing.

In the deployment of the MSC pool networking, the UMG8900 can balance the use of the IP resources of the A/Iu interfaces among the MGWs.

So, A/Iu intefaces are required for MSC Pool, right?

• The MSC server can restrict the number of IP calls on the A/Iu interface in the case that the voice quality may degrade due to insufficient bandwidths.

  
  

  How can we overcome from the insufficient BW?

This is similar to BICC circuits which is also a virtual config.

Very good document

useful document, thanks