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Avaya Aura: Topology of the system
Author: Massimo Croci
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Details
Avaya Aura all versions
A standard Avaya Aura architecture consists of several different devices:
• One or more G600 / G650 / G860 High Density Trunk / DEFINITY G3Si / MCC1 / SCC1 / CMC Media Gateway (MG)
cabinets in stack (main MG cabinet / secondary MG cabinet and so on), each containing Circuit Pack (CP) boards inside
like CLAN TN799 (called ‘ Gatekeeper ‘) performing IP PBX / PABX task (CLANs work with all IP End-Points and IP
Trunks), IP Server Interface (IPSI) TN2312 for generating the tone and connection to Media Gateway Controller through a
Control Network switch, Media Processor (MEDPRO) TN2302 or TN2602 for voice processing, Definity Audix TN568 used
for Voice Mail Messaging, VAL TN2501AP or TN750 or TN750B or TN750C for audio files managing software /
storage, S8400B Media Server TN8400AP and TN8412AP or S8100 TN2314 DEFINITY for VMM-MG cabinets stack
control up to 5) and particular Avaya software application or 3rd party software (both can act as MGC). Because S8100
and S8400B are Circuit Pack-size, they are often called ' CP Media Servers '. Other Circuit Packs are available for Avaya
Aura. G600 / G650 / G860 High Density Trunk / DEFINITY G3Si / MCC1 / SCC1 / CMC Media Gateway cabinets are
called ' Circuit Pack Media Gateway (CP-MG) cabinets '. G600 and CMC (Compact Modular Cabinet) Media Gateway
cabinets are obsolete and currently not used anymore. It's possible to use more CP-MG cabinets all together in a stack
configuration, see more details at the end of this article. For specific details of all Circuit Packs, see F105946;
• Two S85XX family / S87XX family / S88XX family Media Servers in Duplex configuration (one active and one stand-by,
it's possible to swap between them). They are devices on which software Communication Manager (CM) runs. Through
CM all audio files can be uploaded and used. The active Server have the role of Media Gateway Controller (MGC)
sometimes called System Media Gateway Controller (SMGC) and manage H.323 IP Trunks and H.323 IP Phones (CM
has a very limited control on SIP IP Trunks and phones). CM Extension Packs can be installed on MGC as well (like CM
Messaging). S85XX family / S87XX family / S88XX family Media Servers are rack-size so are called ' Rack Media
Servers ' or ' Stand-Alone Media Servers ';
• Two S85XX family / S87XX family / S88XX family Media Servers in Duplex configuration (one active and one stand-by,
it's possible to swap between them). They are devices on which software Session Manager (SES) or System Manager
(SM) runs. SES or SM manages SIP IP trunks and Phones instead of CM because of its limited control;
• IP Phones (SIP / H.323) and all other IP End-Points (like video conference devices);
• One or more G150 / G250 / G250BRI / G350 / G430 / G450 / IG550 / G700 Media Gateway cabinets called ‘ Branch
Gateways ’ because they are in different offices inside the same network of the MGC. IG550 is also called ‘ Integrated
Gateway ‘. They can host just one S8300B / S8300C / S8300D Media Server. Usually they are without the Media Server
inside because controlled by the MGC only; sometimes they have also an internal Media Server for particular Avaya
software applications (the most famous is Processor Ethernet, see below) or 3rd party software applications. G150 /
G250 / G250BRI / G350 / G430 / G450 / IG550 / G700 can host Media Module or WAN Modules board (smaller than CP
boards) so are called ' Voice Media Module Media Gateways (VMM-MG) cabinets ' or ‘ H.248 Media Gateway cabinets ‘
as well, because H.248 (Media Gateway Control protocol) is the protocol used by the MGC to control a Branch or
Remote VMM-MG cabinet. G150 MG cabinet is obsolete and no used anymore. S8300B / S8300C / S8300D Media
Servers are Media Module-size (they are considered as particular MM and often called ' MM Media Server s'). It's possible
to stack VMM-MG cabinets, but this configuration is very rare; For specific details of all Media Modules see F205946;
• One or more S85XX family / S87XX family / S88XX family Media Server on which Application Enablement Service (AES)
runs, it is / they are used for connecting 3rd party hardware devices;
• One Session Border Controller (SBC) device making the role of Modem + Router + Firewall + Access Point for VoIP;
• One or more S85XX family / S87XX family / S88XX family Media Servers, used as Voice Mail & Messaging services
Servers, on which Intuity Audix or Modular Messaging runs (in case the end-user decided to don’t employ a Circuit Pack
Definity Audix TN568 for these services);
• One or more S85XX family / S87XX family / S88XX family Media Servers, on which Call Management System (CMS)
runs;
• One or more Remote VMM-MG cabinet in external networks, connected to a C-LAN in the main Media Gateway cabinet
through an IP Trunk. Remote VMM-MG cabinet are always controlled by the MGC but, at the same time, they can have
the S8100 / S8300C / S8300D Media Server inside for particular tasks, like audio files storage or software application. In
the second case, both the MGC and Media Server inside can control the MG. G700 is the most often used as Remote
VMM-MG cabinet;
• Switches for Port Network (PN) connecting all devices above;
• One analog & digital PBX / PABX (3rd party device) for connecting PSTN network and MG cabinet (PBX deals with ISDN
and analog Trunks) if no Gatekeeper (C-LAN Circuit Pack) is present in the MG cabinet;
• One or more Control Network stackable switches ( ex. Avaya P333T ) used for connecting the MGC to IPSI Circuit Pack
and the PBX to end-points ( as optional);
• One or more Expansion cabinet ( ex. EM200) for VMM-MG cabinets (they are used for hosting more Media Modules than
the default number for each VMM-MG cabinet);
• Analog and digital Phones connected directly to C-LAN in G600 / G650 / G860 High Density Trunk / MCC1 / SCC1 /
CMC1 main MG cabinet / MG cabinets;
Following a scheme of a common Avaya Aura architecture (Branch + Remote).
Below some pictures of Media Servers and CP-MG cabinets / VMM-MG cabinets
>>>>>S8300D Media Server<<<<<
>>>>>S8300C Media Server<<<<<
>>>>>S8400B Media Server (Circuit Pack TN8400AP)<<<<<
>>>>>S8400B Media Server (TN8400AP) inside G650 CP-MG cabinet without front door<<<<<
>>>>>Lucent DEFINITY G3Si CP-MG cabinet<<<<
>>>>>IG 550 Intergrated Gateway<<<<<
>>>>>Faceplate of G450 VMM-MG cabinet<<<<<
>>>>>G430 VMM-MG cabinet with S8300C Media Server inside and two external EM200 Expansion cabinets<<<<<
>>>>>G450 VMM-MG cabinet with MB450 extracted<<<<<
>>>>>Fan Assembly of the G450 VMM-MG cabinet <<<<<
A picture of a Power Supply for a CP-MG cabinet
>>>>>PSU 655A<<<<<
A picture of a Control Network device
>>>>>P333T<<<<<
Below some technical specs of Media Servers and Media Gateways
>>>>>Media Servers technical specs & load balancing<<<<<
>>>>>Media Gateways technical specs & load balancing<<<<
>>>>>Scalability / Performance for MM Media Servers, CP Media Servers and Rack Media Servers with CM 5.X running on them<<<<
For the last hardware versions and firmware releases of Media Servers, Media Gateway cabinets, Communication Manager, Circuit
Packs and Media Modules, see here.
All combinations Media Servers - Media Gateways compliant to the above tables are possible. There are three interesting
applications:
• For Processor C-LAN, see FAQ104956, see F604301;
• For Processor Ethernet, see F504301;
• For the stack of CP and VMM-MG cabinets, see F304301.