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Oracle® Communications EAGLE SIGTRAN User's Guide
Release 46.6
E97352 Revision 1
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Contents
List of Figures
List of Tables
Title and Copyright Information
1
Introduction
About This Guide
Audience
Updates for this Release
Documentation Admonishments
Manual organization
Manual conventions
My Oracle Support
(
MOS
)
Emergency Response
Related Publications
Customer Training
Locate Product Documentation on the Oracle Help Center Site
2
SS7-over-IP Networks
SS7-over-IP Networks Overview
SS7 limitations
Role of SIGTRAN
SCTP (Stream Control Transmission Protocol)
M2PA (MTP2 User Peer-to-Peer Adaptation Layer) Protocol
M3UA (MTP Level 3 User Adaptation Layer) Protocol
SUA (SCCP User Adaptation) Protocol
SS7-over-IP signaling transport
From SS7 Message to IP Packet
Communication inside the Wide Area Network (WAN)
Reasons to transition to an SS7-over-IP SIGTRAN network
Cost Effectiveness
Increased capacity
Integration
Type of Network Change
Dedicated Network versus Converged IP Network
Replacement versus Expansion
Diversity
When to transition to an SS7-over-IP SIGTRAN network
3
Oracle Communications Solutions
Overview
EAGLE
Integrated Application Solutions (IAS)
Integrated Message Feeder (IMF)
4
Transition Planning
Transition guidelines
Resolve high-level network design
Collect network information
Analyze data
Prepare configurations
Implement and test
Refine timers and parameters
5
Dimensioning
About bandwidth, throughput, transaction units, and TPS
Transactions versus transaction units and TPS
Scalability
Link equivalency
Hardware and software requirements
System capacity
Achieving IP Signaling Applications’ Advertised Capacity
Factors Affecting Advertised Capacity
Base transaction unit
Base Transaction Unit Rules: IPLIMx, IPGWx, and IPSG (E5-ENET-B when IPSG High Throughput Feature OFF, E5-ENET)
Base Transaction Unit Rules (E5-ENET-B IPSG High Throughput ON)
Base Transaction Unit Costs:
IPLIMx, IPGWx
Base Transaction Unit Costs: IPSG
Adjusted transaction unit
How to calculate transaction units per second (TPS)
Calculation example
Rules for Integrated Datafeed using STC cards
Functionality of Configurable SCTP Buffer Sizes per Association
System Constraints Affecting Total IP Signaling Capacity
SIGTRAN Engineering Guidelines
Calculate the Number of Cards Required
IPGWx Congestion Management Options
Redundancy and Link Engineering
Unihoming versus Multihoming
Choosing a Redundancy Method for M2PA Links
Mated Signal Transfer Point Redundancy
IPGWx mateset
Signaling Link Selection (SLS) Routing
LAN/WAN Considerations
Retransmission Concept
Retransmissions and Destination Status
SCTP Timers
Configure Congestion Window Minimum (CWMIN) Parameter
6
Implementation
Hardware requirements
EAGLE
Integrated Message Feeder (IMF)
Converting Non-IPSG-M2PA Linksets to IPSG-M2PA Linksets
Converting IPGWx M3UA Application Servers to IPSG-M3UA Linksets
Configuration
Configure the IPSG Application
Configure the IPSG Application on the Same Card
Configure the IPLIMx Application
Configure the IPGWx Application
Refine Timers and Parameters
Define RTIMES Association Retransmits
Define RTO Parameter
Define RTXTHR Parameter
Measure Jitter
Refine RTO Parameter
System Verification
Verify Network Connectivity
Verify IPLIMx configuration
Verify IPGWx configuration
7
Troubleshooting
General troubleshooting
Verify UIMs and UAMs
Is the card configured correctly?
Connection does not become established
Connection bounces and is unstable
AS/PC in route key does not become available or ACTIVE (IPGWx only)
IP destination is not informed of SS7 destination status changes; network management is not working correctly (IPGWx only)
Traffic not arriving at IP destination or traffic is lost
Are connection(s) congesting?
Traffic not load-balanced properly
Link Level Events
Association
A
Additional Deployment Scenarios
IPSG Deployment Scenario
IPGW/M3UA deployment scenarios
B
References
Oracle Communications Internal References
External References
