1. Computaris Diameter Router
More and more innovative services, high-speed mobile broadband, flexible charging
scenarios, real-time Quality of Service (QoS) control and many other factors create
completely new challenges and new needs for Operators in the Diameter control plane.
Diameter signaling, used for authorization, authentication, charging and policy control,
QoS and mobility management is essential for the delivery of all services and becomes
crucial for telecommunication networks to operate in the most efficient and profitable
way. The volume of Diameter traffic is growing rapidly in the wake of new functional
components being added to EPC and IMS networks. Diameter traffic is exchanged
between MME and HSS, PCEF and PCRF, PCEF and OCS and other elements forming
current telecommunication networks, the number of Diameter interfaces defined by
various standards exceeding 50 and new interfaces are continuously added, creating
an unmanageable mesh of Diameter connections.
Service providers have to look for cost-effective solutions necessary to scale their Diameter
signaling infrastructure and facilitate the management of next generation networks.
Challenges
 Increasing traffic volume  Integration with roaming partners
 Multi-vendor interoperability  Network stability and security
 Unmanageable mesh of connections  Load balancing and overload control
 Complex routing and provisioning  Transport protocols interworking
Solution
Computaris Diameter Router – a cost-effective, high-performance and flexible
product, designed for full compliance with 3GPP Diameter Router, IETF Diameter
Agents and GSMA Diameter Edge Agent requirement; it provides effective Diameter
traffic management, flexible routing, load balancing, security, message adaptation and
protocol translation capabilities for 4G/LTE/IMS and 2G/3G networks.

2. Computaris Diameter Router
Computaris Diameter Router is designed to help telecommunication service providers
address all the challenges of Diameter signaling in 4G/LTE/IMS and 2G/3G networks.
The list of its advanced features includes:
 Compliance with IETF Diameter Agents requirements
 Compliance with 3GPP Diameter Router Agent requirements
 Compliance with GSMA Diameter Edge Agent requirements
 Extensible Diameter Dictionary supporting an unlimited number of Diameter
interfaces
 Contextual, scriptable dynamic routing rules engine
 Session and subscriber awareness
 Message adaptation and transformation
 Protocol interworking capabilities – Diameter/RADIUS, Diameter/MAP (roadmap)
 IPv4, IPv6 and SCTP interworking
 Congestion control, load balancing and throttling
 ACL based access control
 Clustering, High Availability and Geo-Redundancy with session replication
 SOAP/LDAP/SQL/JMS communication plug-ins
Computaris Diameter Router Use Case 1 – Core Diameter
Routing
Computaris Diameter Router
simplifies the mesh of connections
between tens of Diameter nodes
in the service provider’s core
network.
It also ensures the interoperability
between products of different
vendors, creating a centralized
point effective Diameter signalling
management.

3. Computaris Diameter Router Use Case 2 – Interconnect
Diameter Routing
Computaris Diameter Router provides a Diameter interface between network elements
of the Visited Network and elements of the Home Network, enabling access to data
services for subscribers in roaming. Computaris Diameter Router secures also the
Diameter communication acting as Diameter Edge Agent and enables topology hiding.
Computaris Diameter Router Use Case 3 – HSS Adress
Resolution
Computaris Diameter Router
centralizes routing data and provides
mapping between subscriber identity
(IMSI, MSISDN) and HSS.
It enables the operator to manipulate
the pool of HSS servers and split the
subscriber base over different HSSes
without making any unnecessary
changes in other systems.

4. Computaris Diameter Expertise
Over the last two decades Computaris has become a Diameter expert through
implementation and integration projects delivered to partners and customers,
Independent Software Vendors and Communication Service Providers.
Computaris Diameter Router is developed based not only on experience from
implementation projects, but also on experience gathered during the development of
two other Computaris products:
 Computaris Diameter-J Stack – a Java-based implementation of Diameter stack,
compliant with Diameter Base specification (RFC 3588), providing a flexible and
easy-to-use implementation of the XML-based Diameter Dictionary and Java API for
rapid development of Diameter-based applications
 Computaris TOP Testing Suite (TTS) – a versatile, comprehensive and highly
flexible testing tool designed for performance and functional tests of
telecommunication and IT systems; TTS comes with a wide set of dedicated
protocol plug-ins (Diameter, RADIUS, CAMEL, CORBA, SMPP, HTTP, SOAP/Web
Services) that can be combined in the test plans defined with an intuitive GUI
designed for easy development of simple and sophisticated test suites for testing
any possible combinations of telecommunication systems. One of the most used
and flexible plug-ins is the TTS Diameter Plugin, providing Diameter Client and
Server capabilities.
About Computaris
Computaris provides specialist BSS technical consultancy, software development and
system integration services for the telecommunication industry, mainly in Europe,
North America and SE Asia.
We offer the highest level of telecom expertise in the area of real-time rating and
charging, messaging, provisioning, mediation, subscriber data management, mobile
broadband data policy management, loyalty and churn management.
Our project portfolio ranges from very specific telecom consultancy assignments to
complete deployment and migration of mission-critical real-time system going through
software development, customization, integration, migration, support and maintenance.
www.computaris.com