shankar

Media Gateway 1000E
Media Gateways 1000Es are used to connect TDM equipment such as trunks and analogue or digital phones to a CS 1000E system. An MG 1000E hosts the same range of IPE cards supported in Meridian Option 11 and the cards are configured in a similar manner to IPE shelves in a Meridian 1.
Each MG 1000E has an MGC (Media Gateway Controller) card acting as the controller for the gateway. The MGC must be placed in slot 0 of the gateway.

Gateways controller provides the following services:
• 2 x 30 ports conference bridges for adhoc conference
• TDM services (DTMF receivers and tone generators)
• Support for PRI, BRI and DECT within the MG 1000E.
• Supports two DSP Daughter Cards (32/ 96) - can replace up to 4 VGMCs and supports SRTP to secure voice media communications.
• Layer 2 dual homing increases media gateway availability for the media gateway as well as CPPM cards. Dual homing allows the MGC to be connected to a pair of Layer 2 Data switches, and allows for sub-second switchover of ports in the event of a failure of one of the switches

saulat

Hi shankar, Thanx for the Info, however i have still some misconception in that
1- Doses we have to use another cabinet if i m using different TDM cards in a PBX?? Does CS1000E doesnt work with TDM cards, lets say i am using all analog card in a PBX the can i plugged in all TDM cards in CS1000E??

2- I heard that i can use many media gateways with one call server. is it correct? does if one of many media gateway crashed then what would happened?

Regards

Mercury_Storm

Yes you can use many gateways to one call server.

You can connect up to 50 Media Gateways to one Call Server

Each Media Gateway will require 1 MGC Card, as this is your superloop card in esence. Each Media gateway can have one expansion cabinet connected to it, thus allowing you a maximum of 100 cabinets with 50 MGC cards.

Any Media Gateway or Expansion can take any TDM card.

saulat

Thanx Storm for the Info.Can i ask more in this??
What would happened in a crash situation , i mean if call server dies then does MGC could survive on its own???does it has its own resources or some card?
In Normal situation does MGC uses call server resources, i mean does it operates from call server?
Does call server=MGC+CPPM+SS-->these made a call server, if i remove SS then is it still call server??

Fletch

Media Gateways can register to up to 3 Single Availablity or High Availability Call Server pairs. So in essence, you can have up to 6 processors providing redundancy.

If a Media Gateway has a CP-PM AND an Sig Server, it can be a redundant point for other Media Gateways, as well as being completely survivable on it's own.

__________________
Fletch
Avaya Emergency Services Product Manager
Check out Avaya on the web at http://avaya.com

Telecom Junkies 'Best of' Podcast is now available HERE at http://TelecomJunkies.com

Mercury_Storm

Yes as Fletch says, you can set your MGC card to connect to a different Call Server if the one fails, this in esence works the same way as the old 61c/81c systems with failover

However, if you have only one Call Server and this fails, your MGC's will become unregistered from the system.

From Release 5, there are only two Signaling servers available, the CPPM card or the COTS Server (IBM or HP). The old ISP1100 servers will still work, with a ram upgrade to 1gb

Ok this is where your understanding is a lil wrong

A CPPM card can either be a CS (Call Server) or SS (Signaling Server), these are determined by:
a) fmd (flash media device) or hdd (laptop harddrive)
b) switch on cppm card

For a CPPM to be a Signaling Server, you would install a Harddrive on the CPPM card and set the switch to boot from harddrive. For a CPPM to be a callserver you would install the 1gb Flash card in the provided slot and set the switch to boot from flash media device (default)

So technically, for a standard available system you would need the following

MGC - Media Gateway Controller
CPPM - Core Proccessor Pentium Mobile - Call Server
CPPM - Core Proccessor Pentium Mobile - Signaling Server / COTS (IBM or HP) Signaling Server

And then the remainder of the cards required... Analog, T1/E1, Digital etc. You do however loose some slots in the 1000E, namely slot 5 and 6, these do not physically exist

Cabinet 1 (Media Gateway): Slots 0 - 4 (MGC must be placed in 0)
Expansion Connected to MG: Slots 7 to 10

Your CPPM cards can be placed in any of the slots, as they just require power from the chassis.

Just shout if you need anymore clarification

Oh and Merry Christmas Everyone!

saulat

QUOTE=However, if you have only one Call Server and this fails, your MGC's will become unregistered from the system.
If MGC becomes unregistered then all resources (on this unregistered MGC e.g trunks,ext,PRI..) will be run by this MGC itself?? Doesnt that need a CPPM card with this MGC also??
Does we defined survivable setup in Element manager? i mean if i have 2 call server with 4 MGC then do i have to define both call server through EM?

As far as my understanding. Call server is a main element (like CPU0) and second call server is CPU1 and so on and MGC are like IPE shelves, the only difference between CS1000E and old releases is that one can have more redundancy option besides only CPU0and CPU1 in old releases and you can also have conventional card in Call server and in old releases u dont have any conventional card in CPU`s.
Also if ll call server dies then MGC will stand on its own by using its CPPM but in old releases if CPU0 and CPU1 dies then u have nothing.
Am i correct?
regards

shankar

Hey CPPM is a CPU........................

Fletch

The MGC is not capable of running anything by itself. It needs toregister to a CPU. This can be a locally installed CPU in the MG itself (Locally survivable) or a CPU in another MG elsewhere.

An MCG is like the old SSC card, EXCEPT that it is not a processor.

__________________
Fletch
Avaya Emergency Services Product Manager
Check out Avaya on the web at http://avaya.com

Telecom Junkies 'Best of' Podcast is now available HERE at http://TelecomJunkies.com