Table Of Contents
Q & A
Cisco Media Gateway Manager 3.0
Q. What is the Cisco® Media Gateway Manager?
A. The Cisco Media Gateway Manager (MGM) provides integrated element management that enables operations, administration, maintenance, and provisioning of Cisco MGX® 8000 Series carrier voice gateways and associated softswitches. A Cisco element manager optimized for voice solutions, the Cisco MGM 3.0 is ideal for customers with an IP core or for customers deploying the Cisco MGX 8000 Series based on voice-over-IP (VoIP) switching and trunking technologies.
Cisco MGM can deploy, configure, and manage multiple Cisco MGX 8000 Series carrier voice gateways and associated softswitches in one or more points of presence, providing a single interface for fault, configuration, performance, and network security management. Cisco MGM integrates CiscoView to provide chassis and subchassis component management for the Cisco MGX 8000 Series. In addition, network-management-layer applications can communicate with Cisco MGM through a northbound Common Object Request Broker Architecture (CORBA) and through Simple Network Management Protocol (SNMP) operations support system (OSS) integration interfaces.
Q. What is the Cisco MGX 8000 Series Carrier Voice Gateway?
A. The Cisco MGX 8000 Series Carrier Voice Gateway provides Public Switched Telephone Network (PSTN) termination and voice-over-packet capabilities for the Cisco MGX 8850 Multiservice Switch, the Cisco MGX 8830 ATM Multiservice Switch, and the Cisco MGX 8230 and 8250 edge concentrators via the Cisco Voice Interworking Service Module (VISM).
Q. What is the Cisco VISM?
A. Cisco VISM adds packet voice capabilities, including VoIP, voice-over-ATM Adaptation Layer 1, and voice-over-ATM Adaptation Layer 2 to the Cisco MGX 8850 Multiservice Switch, the Cisco MGX 8830 ATM Multiservice Switch, and the Cisco MGX 8230 and 8250 edge concentrators.
Q. Which versions of the Cisco MGX 8000 Series does Cisco MGM manage?
A. The Cisco MGM 3.0 manages the following (Table 1):
Q. How does the Cisco MGM relate to the Cisco WAN Manager?
A. The Cisco MGM and Cisco WAN Manager are designed to provide distinct network management optimized for specific voice technologies:
•Cisco MGM provides integrated element management focused on voice features in VoIP applications that use an IP-core network.
•Cisco WAN Manager provides end-to-end management of multiservice and voice-over-ATM applications that are optimized for connection-oriented networks, specifically supporting ATM-core voice networks.
Q. What is an element management system (EMS)?
A. An EMS supports equipment provisioning, software-image management, autodiscovery, configuration backup and restore, equipment monitoring and alarm management, performance management, and network-security management. The EMS resides within the element-management layer as defined by the Telecommunication Management Network (TMN) architecture.
Q. What is a Cisco Element Manager?
A. A Cisco Element Manager is an EMS that is part of the Cisco Element Manager System product portfolio. This product portfolio provides device-specific fault, configuration, accounting/inventory, performance, security (FCAPS) capability in the Cisco Internet OSS. The Cisco EMS portfolio comprises a range of element managers based on a highly scalable, tested, and field-validated common infrastructure, which is designed to support carrier-class element managers across Cisco service-provider product lines. This flexible, modular model allows service providers to install the mix of element managers they need to support their dynamic businesses. It also enables cost-effective and rapid deployment of new element managers, permitting service providers to more rapidly introduce and manage new services. Cisco element management systems provide common interfaces and element-management services to applications in the network and service-management levels of the Cisco Internet OSS, as well as existing service-provider OSS components.
Q. What integral architectural components make up the Cisco MGM?
A. The architecture of the Cisco MGM comprises four primary components: the Cisco Element Manager System, Cisco MGM "blade," CiscoView software, and CORBA Language Reference (Interface Definition Language [IDL] files).
Q. Which softswitches does Cisco MGM integrate with?
A. The Cisco MGM integrates with both Cisco and partner softswitches.
•Cisco softswitches: Cisco BTS 10200 Softswitch and Cisco PGW 2200 Softswitch
Q. How does the Cisco MGM relate to the CiscoView application?
A. The Cisco MGM launches CiscoView software to provide device-level management for the Cisco MGX 8000 Series chassis. The features supported by CiscoView include:
•Node and services management (such as system settings, node configurations, service provisioning, and system-test features)
•Chassis, card, and line provisioning (includes Cisco VISM port provisioning)
•Real-time Cisco MGX 8000 Series status, alarms, and event monitoring (chassis, cards, lines, ports)
•Real-time performance monitoring of statistical counters
•System diagnostics facilitated with loopback and bit error rate tester (BERT)
Q. What are the primary features of the Cisco MGM?
A. The Cisco MGM addresses the operations, administration, maintenance, and provisioning management for the Cisco MGX 8000 Series. Primary features include:
•Autodiscovery and configuration of Cisco MGX 8000 Series and associated softswitches
•Cisco MGM database synchronization with physical Cisco MGX 8000 Series networks
•Multichassis software download for the Cisco MGX 8000 Series
•Configuration of SNMPv1 community strings
•Menu-launched, Web-based, and command-line interface (CLI) device management
•Real-time performance monitoring
•Real-time and proactive network surveillance
•BERT and loopback diagnostics tests on lines
•CORBA IDL interface to network-management-layer applications
Q. Does the Cisco MGM manage other Cisco or third-party media gateways?
Q. What are the system platform requirements for the Cisco MGM servers and clients?
A. The platform resources required depend on the number of Cisco MGX 8000 Series carrier voice gateways and softswitches to be managed and their configurations. Table 2 provides the platform requirements for the Cisco MGM.
1Additional client or presentation servers may be added, if necessary, to maintain good operator response time in large networks with heavy alarm traffic. Presentation and management servers may run coresident for medium networks when faster Sun CPUs are used or operator loads are light. Adding more presentation servers increases the number of supported operators.
2Number of VISMs is used to help determine the Sun server sizing, even though all Cisco MGX 8000 Series components are managed by the Cisco MGM.
Q. What are the system software requirements for the Cisco MGM servers and clients?
A. The software requirements for a Cisco MGM installation include:
•Cisco EMS Version 3.2, Service Pack 4
•Cisco MGM 3.0
•Netscape 4.76 for Solaris (already included as part of Cisco Element Manager installation)
•Netscape 6.2 (or later) for Extensible Provisioning and Operations Manager (EPOM) support. EPOM provides GUI features for the Cisco BTS 10200 Softswitch EMS
Q. Can I forward SNMP traps from the Cisco MGM?
A. Yes, the Cisco MGM provides SNMPv1 trap forwarding to other management systems (such as HP OpenView). The IP address of the upstream management application is added to the Cisco MGM trap-forwarding file during initial system setup.
Q. What types of user access control does the Cisco MGM provide?
A. The Cisco MGM security uses the mechanisms of Cisco Element Manager, which authenticates users based on names and passwords upon initial entry into the Cisco MGM login window.
Q. Can I customize the security access levels according to different user groups?
A. Yes, different users can be assigned to different user groups. Task partitioning, which means different user groups have access to different tasks, is also supported.
Q. How does information entered via the Cisco MGX 8000 Series CLI get synchronized with the Cisco MGM?
A. The network has the master copy of all the configuration data. Cisco MGM runs in a reactive role listening to any events issued from the network, and therefore reacts to the events by reporting them on GUI and updating its configuration.
Any changes that occur to the Cisco MGX 8000 Series via CLI are directly reported to the Cisco MGM via SNMPv1 traps and updated in the Cisco MGM database. Additionally, the Cisco MGM user can request to have the Cisco MGM database synchronize itself with the Cisco MGX 8000 Series media gateways that it is managing.
Q. Where can I find more information about the Cisco MGM?
A. For more information about the Cisco MGM, visit:
Q. Where can I find more information about the Cisco Element Managers?
A. For more information about Cisco element managers, visit:
Q. How many Cisco MGX 8000 Series carrier voice gateways can the Cisco MGM support?
A. Cisco MGM 3.0 testing has validated that 50 fully populated Cisco MGX 8000 voice gateway chassis per server can be managed. Larger networks may be supported as well; please contact product marketing for more information.
Q. Can the Cisco MGM co-reside on the same server running another EMS based on Cisco EMF?
A. Yes, Cisco MGM can coexist on the same server with the Cisco Universal Gateway Manager and the Cisco Media Gateway Controller (MGC) Node Manager, providing an integrated event browser, integrated map viewer, and northbound interface.
Q. How many concurrent users can the Cisco MGM support?
A. A single Cisco MGM server can support up to 20 concurrent Cisco MGM user sessions. Cisco MGM clients (such as a Sun Ultra 10 Workstation) can support ten additional users. Therefore the maximum number of concurrent users for a client/server configuration is 30. The Cisco element managers can support 20 additional users who are logged on but not requesting dynamic updates.
Q. How do I obtain software patches?
A. The Cisco MGM and Cisco Element Manager patches are available for download at:
Q. Does Cisco Systems® sell Sun hardware for the Cisco MGM?
A. No, Cisco does not offer Sun hardware for the Cisco MGM at this time. Sun provides many workstations and server configurations that are compatible with the Cisco MGM software and are readily available worldwide. By purchasing directly from Sun, the customer saves money and benefits from a wider range of hardware options. The Sun UltraSPARC-III family provides best price and performance support for Cisco MGM and should be configured based on the size of the network, the number of coresident Cisco element managers, and the number of operators anticipated.
Q. How much does the Cisco MGM cost and how do I order it?
A. The pricing schedule is described in detail in the Cisco Media Gateway Manager ordering guide located at: