SCTP Multihoming with Cisco ITP and Mobile Vendor MSC
Troubleshooting Guide
July 20, 2009
Troubleshooting Guide
Contents
1. Congestion Problem Analysis ................................................................................................................................ 3
1.1 Congestion Problem ........................................................................................................................................... 3
1.2 Congestion Analysis ........................................................................................................................................... 5
2. Congestion Action Plan .......................................................................................................................................... 8
Step 1.
Understanding the Congestion Reaction in MSC.............................................................................. 8
Step 2.
Understanding Congestion in ITP ...................................................................................................... 8
Step 3.
Understanding SCTP Multihoming in ITP ........................................................................................ 10
Step 4.
Understanding SCTP Multihoming in Mobile Vendor MSC ............................................................ 14
Step 5.
SCTP Parameters Calculation and Fine-Tuning .............................................................................. 16
Step 6.
Tx-Queue-Depth Calculation ............................................................................................................. 18
3. M2PA Configuration and SCTP Settings ............................................................................................................. 19
4. Conclusion ............................................................................................................................................................. 20
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