Chapter

Cisco MGX 8220 System Overview

The front card communicates with the back card using a backplane. This backplane design allows the function modules to be replaced or upgraded without disturbing the physical cabling.

•The “Cisco MGX 8220 Cards” section on page 1-6briefly summarizes the front (function) modules available for use with the Cisco MGX 8220.

•Chapter 2, “Common Equipment Description,” includes a description of core modules.

•Chapter 4, “MGX 8220 Service Modules,” describes the various service modules in detail.

Cisco MGX 8220 Cards

Cisco MGX 8220 cards are installed in pairs consisting of a front card (function module) and a matching back card (line module). These cards are installed in the same numbered slot. Communication between slots is achieved through buses in the shelf backplane.

The ASC and the BNM modules must always be present in an Cisco MGX 8220 shelf and are referred to as the core modules. The Cisco MGX 8220 shelf supports redundant core modules where one ASC/BNM set is an active set and a second ASC/BNM is a standby set. In the event of a malfunction, the standby set automatically takes over as the active set. The SRM is optional. If present, it is part of the core card set, with switchover to the standby set if the active BNM or ASC malfunctions.

The following modules do not use back cards:

•SRM-T1/E1 card—This module includes only a front card. See the “Service Resource Modules” section on page 2-22for more information.

•Service modules that use the SRM-3T3 distribution bus. See the “AX-SRM-3T3” section on page 2-24for more information.

Cards Supported in the Cisco MGX 8220

•Cisco MGX 8220 Shelf Controller (AX-ASC)

AXIS Shelf Controller (ASC) is a pair of cards that provides overall control of the shelf. These cards also provide line interfaces to the maintenance and control ports used for user configuration and shelf management.

Broadband Network Modules

•Broadband network module (AX-BNM-T3)

This is a pair of cards that provides a UNI/NNI interface to the attached Cisco BPX switch over a T3 ATM interface.

•Broadband network module (AX-BNM-E3)

This is a pair of cards that provides a UNI/NNI interface to the attached Cisco BPX switch over an E3 ATM interface.

•Broadband network module (AX-BNM-155)

This is a pair of cards that provides the interface to the attached Cisco BPX switch over a SONET ATM interface.

Frame Service Modules

•Frame service module for T1 (AX-FRSM-4T1)

This card provides interfaces for up to four T1 lines, each of which can support one 56 kbps or one nx64 kbps FR-UNI, FR-NNI port, ATM-FUNI, or a Frame forwarding port.

 

Cisco MGX 8220 Installation and Configuration

1-6

Release 5.0, Part Number 78-6430-03 Rev. D0, November 2003

Page 37 Page 39
Page 38
Image 38
Cisco Systems Cisco MGX 8220 Cards, Cards Supported in the Cisco MGX, Broadband Network Modules, Frame Service Modules
Page 37 Page 39

MGX 8220 specifications

The Cisco Systems MGX 8220 is a versatile, high-performance media gateway that has become an integral component in the telecommunications infrastructure. Designed to facilitate the transition from traditional circuit-switched networks to advanced packet-switched environments, the MGX 8220 supports a wide array of voice, video, and data services, making it an essential tool for service providers and enterprises seeking to enhance their network capabilities.

One of the key features of the MGX 8220 is its robust signaling and media processing capabilities. Equipped with support for both Voice over IP (VoIP) and traditional telephony protocols, this gateway enables seamless integration of different communication formats. It boasts a modular architecture, which allows for the addition or removal of various line cards to meet changing demands and technology advancements. This modularity provides operators with the flexibility to scale their services without significant overhauls to their existing infrastructure.

The MGX 8220 is capable of delivering high-density media handling for a multitude of services. With its support for ATM and IP networks, the gateway can handle TDM (Time-Division Multiplexing) to packet voice conversions efficiently. It is designed to optimize network resources by dynamically allocating bandwidth based on traffic requirements, thus ensuring efficient use of network resources and improved performance.

Another significant characteristic of the MGX 8220 is its enhanced quality of service (QoS) features. This capability ensures that voice and video traffic is prioritized appropriately, minimizing latency and jitter while maximizing overall call quality. By employing sophisticated traffic management techniques, the MGX 8220 can deliver a superior user experience, which is critical for any service provider aiming to offer competitive communication solutions.

Furthermore, the gateway includes built-in security features to protect against unauthorized access and ensure the integrity of sensitive data. This includes encryption for voice and video transmission, as well as support for secure signaling protocols.

Overall, the Cisco Systems MGX 8220 stands out as a comprehensive media gateway solution, providing essential functionalities for modern communication needs. Its combination of modularity, high-density processing, effective QoS management, and security features makes it a compelling choice for organizations looking to modernize their telecommunications infrastructure while ensuring reliability and performance. As businesses continue to evolve and demand more from their networks, the MGX 8220 offers a pathway to future-ready communications.
Top Page Image Contents